最終更新日2017年02月01日

氏名

ハヤシ ヤスヒロ

林 泰弘

職名

教授

所属理工学術院

(先進理工学部)

連絡先

住所・電話番号・fax番号

住所
〒169-8555新宿区 大久保3−4−1
電話番号
03-5286-8122
fax番号
03-5286-8122

URL等

WebページURL

http://www.eb.waseda.ac.jp/hayashi/

研究者番号
40257209

本属以外の学内所属

兼担

理工学術院(大学院先進理工学研究科)

学内研究所等

電動車両研究所(EdVs研究所)

研究所員 2014年-2019年

太陽光発電システム研究所

研究所員 2014年-2019年

先進グリッド技術研究所

プロジェクト研究所所長 2009年-2014年

先進グリッド技術研究所

研究所員 2009年-2014年

住宅・建築環境設備研究所

研究所員 2014年-2019年

スマートライフサイエンス研究所

研究所員 2014年-2019年

動力エネルギーシステム研究所

研究所員 2014年-2019年

次世代蓄電エネルギー連携研究所

研究所員 2011年-2014年

次世代蓄電エネルギー連携研究所

研究所員 2015年-

先進グリッド技術研究所

研究所員 2016年-

先進グリッド技術研究所

研究所員 2014年-2016年

次世代交通システム研究所

研究所員 2017年-

学歴・学位

学歴

-1989年 早稲田大学 理工学部 電気工学科
-1991年 早稲田大学 理工学研究科 電気工学専攻
-1994年 早稲田大学 理工学研究科 電気工学専攻

学位

博士(工学) 課程 早稲田大学 電力工学・電力変換・電気機器

経歴

1993年-1994年早稲田大学・理工学部, 助手
1994年-1997年茨城大学工学部システム工学科助手
1997年-2000年茨城大学工学部システム工学科講師
2000年-2009年福井大学工学部電気・電子工学科助教授
2009年-早稲田大学先進理工学部教授
2009年12月-先進グリッド技術研究所長を兼任
2014年04月-スマート社会技術融合研究機構機構長

所属学協会

米国電気電子学会

電気学会

委員歴・役員歴(学外)

2016年04月-経済産業省 電力・ガス取引監視等委員会委員
2014年01月-国際大電力会議C6 技術委員会委員

受賞

電気学会論文賞

2008年05月

取材ガイド

カテゴリー
工学
専門分野
スマートグリッド、エネルギーマネジメントシステム、デマンドレスポンス
自己紹介コメント
スマートグリッド技術、エネルギーマネージメントシステム(EMS)の最適化の研究開発、デマンドレスポンス技術及び電気エネルギーの予測・運用・制御研究

研究分野

キーワード

先進電気エネルギーシステムの最適化、分散型電源と電力系統との協調運用・制御

科研費分類

工学 / 電気電子工学 / 電力工学・電力変換・電気機器

共同研究希望テーマ

再生可能エネルギー電源の次世代制御

希望連携機関:産学連携、民間を含む他機関等との共同研究等

目的:受託研究、共同研究

送配電ネットワークの次世代運用・制御

希望連携機関:産学連携、民間を含む他機関等との共同研究等

目的:受託研究、共同研究

需要側のスマート利用

希望連携機関:産学連携、民間を含む他機関等との共同研究等

目的:受託研究、共同研究

研究テーマ履歴

再生可能エネルギー電源の次世代制御

研究テーマのキーワード:スマートグリッド,太陽光発電,風力発電システム, 配電系統, 次世代電圧制御,蓄電池

個人研究

送配電ネットワークの次世代運用・制御

研究テーマのキーワード:スマートグリッド,次世代周波数制御,蓄電池,太陽光発電,風力発電システム, 配電系統, 次世代電圧制御

個人研究

需要側のスマート利用

研究テーマのキーワード:スマートグリッド,太陽光発電,風力発電システム, 次世代電圧制御,スマートメーター,ヒートポンプ給湯器,蓄電池,燃料電池,電気自動車,

個人研究

論文

Effectiveness of improvement of benefit of the electric power selling charges and electricity charges using battery storage system and heat pump water heater for high penetration PV

Miyamoto, Yusuke; Miyamoto, Yusuke; Hayashi, Yasuhiro

IEEJ Transactions on Power and Energy136(3)p.245 - 2582016年01月-2016年01月 

DOIScopus

詳細

ISSN:03854213

概要:© 2016 The Institute of Electrical Engineers of Japan. Recently home energy management system (HEMS) has been spread due to increase in awareness of save energy after Great East Japan Earthquake. HEMS consists of photovoltaic power system (PV), battery energy storage system (BESS) and heat pump water heater (HPWH), etc. Residential PV implementation rate has been increasing due to feed in tariff from 2009. So there is a danger of output suppression loss due to voltage increase on a distribution line due to reverse power flow from each residential PV. So we try to study how to reduce output suppression loss using BESS and HPWH optimally. One of the main purpose to implement BESS and HPWH is for economy using the difference in electricity charges between during nighttime and daytime. So in this research, we optimize how to operate BESS and HPWH to improve the benefit of the electric power selling charges and electricity charges considering reduction of output suppression loss and the difference in electricity charges between during nighttime and daytime.

Robust Operation Planning Method for Integrated Solid Oxide Fuel Cells in a Collective Housing with Electric Power Interchange System Considering Uncertainty in Demand Forecast

Runa Kato, Yu Fujimoto, Yasuhiro Hayashi

IEEJ Transactions on Power and Energy査読有り136(6)p.528 - 5362016年06月-

詳細

概要:The subject of this study is to propose a power interchange system in a collective housing with residential solid oxide fuel cells (SOFCs) and a robust operation planning method for integrated SOFCs against uncertain energy demand forecast. In this method, the future operation plan for multiple SOFCs is optimized and determined to minimize the expected total primary energy consumption in the collective housing considering uncertainty in demand forecast. If the forecast energy demand includes forecast errors, the result of SOFCs operation will corrupt from the viewpoint of the primary energy consumption. Thus, the output decision problem for SOFCs is formulated by considering the corruption caused by forecast errors, so that the decided SOFC outputs have the robustness against uncertainty in demand forecast. The validity of the proposed method is examined based on numerical simulations from the perspective of the robustness.

Estimation Prediction Interval of Solar Irradiance Based on Just-in-Time Modeling for Photovoltaic Output Prediction

Yamazaki, Tomohide; Yamazaki, Tomohide; Homma, Hayato; Homma, Hayato; Wakao, Shinji; Wakao, Shinji; Fujimoto, Yu; Hayashi, Yasuhiro; Hayashi, Yasuhiro

Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)195(3)p.1 - 102016年05月-2016年05月 

DOIScopus

詳細

ISSN:04247760

概要:© 2016 Wiley Periodicals, Inc. Photovoltaic (PV) systems have recently attracted considerable attention in the context of environmental problems, antinuclear power movements, and energy problems. Therefore, the large-scale introduction of PV systems is expected in the near future. But the connection of many PV systems to the power system leads to problems. For example, the system voltage often drifts from the norm when reverse power flows increase. Accordingly, optimal system operation is required in order to make maximum use of solar energy to the maximum by installing energy buffers such as storage batteries. In particular, in forecast information, knowledge of the reliability as well as the predicted solar irradiance is essential for effective operation. In this paper, we propose a way of estimating the prediction interval of solar irradiance as an index of reliability by using just-in-time modeling. We consider the accuracy of the prediction interval under many conditions and derive a high-precision estimation method. In addition, we also discuss about the future subjects of study.

Cooperating Voltage Control Method between Battery Energy Storage System and LRT and SVR for Purpose of Expansion of PV Introduction

Jun Yoshinaga, Satoru Akagi, Masakazu Ito, Yasuhiro Hayashi, Kazunari Ishibashi

IEEJ Transactions on Power and Energy136(3)p.291 - 3012016年03月-

詳細

概要:Voltage deviation in distribution networks and photovoltaic (PV) output restriction, caused by a large amount of PV systems installation, have been issued recently. BESS (Battery Energy Storage System) is one of the solutions. However, the detailed evaluation of the voltage control effect of BESS has not been carried out, because its effect varies according to BESS placement, its output and configuration of distribution, etc. Therefore, the amount of PV introduction limits in several distribution networks were evaluated and effective BESS arrangement and output control were examined in this paper. The effectiveness of the proposed BESS cooperating voltage control method with LRT, SVR was verified using numerical simulation and experiment of distribution system simulator.

家庭用蓄電池とヒートポンプ給湯器による多数台太陽光発電 システムの電気料金改善効果

宮本 裕介, 林 泰弘

電気学会論文誌B(電力・エネルギー部門)査読有り136(3)p.245 - 2582016年03月-

詳細

掲載種別:研究論文(学術雑誌)ISSN:1348-8147

概要:Recently home energy management system (HEMS) has been spread due to increase in awareness of save energy after Great East Japan Earthquake. HEMS consists of photovoltaic power system (PV), battery energy storage system (BESS) and heat pump water heater (HPWH), etc. Residential PV implementation rate has been increasing due to feed in tariff from 2009. So there is a danger of output suppression loss due to voltage increase on a distribution line due to reverse power flow from each residential PV. So we try to study how to reduce output suppression loss using BESS and HPWH optimally. One of the main purpose to implement BESS and HPWH is for economy using the difference in electricity charges between during nighttime and daytime. So in this research, we optimize how to operate BESS and HPWH to improve the benefit of the electric power selling charges and electricity charges considering reduction of output suppression loss and the difference in electricity charges between during nighttime and daytime.

Generating Synthetic Profiles of Onshore Wind Power for Power Flow Simulation on Power System

Yu Fujimoto, Seigo Furuya, Yasuhiro Hayashi, Tetsuya Osaka

Journal of Energy Engineering2016年03月-

Power and hour capacity requirement for an energy storage from grid codes

Ito, Masakazu; Fujimoto, Yu; Mitsuoka, Masataka; Ishii, Hideo; Hayashi, Yasuhiro

Asia-Pacific Power and Energy Engineering Conference, APPEEC2016-January2016年01月-2016年01月 

DOIScopus

詳細

ISSN:21574839

概要:© 2015 IEEE. This paper studied power and hour capacity requirement for energy storage by two approaches. First one is evaluations without constrained condition of power and hour capacity with 80 sets of maximum ramp rates and time windows. And second one is evaluations with constrained condition of power and hour capacity for 2 grid codes (less than 0.1pu change of wind farm (WF) capacity in 20min time window, showing 0.1pu/20min in this paper, and 0.3pu/360min) to see details. The first evaluation in case of 3a resulted 1.0 pu power capacity (charge plus discharge capacity for all result) and 1.3 to 2.2 pu-h hour capacity are required to satisfy maximum ramp rate in time window of 0.1pu/20min. And 1.2 to 1.3 pu and 13 to 18 pu-h are required for 0.3pu/360min. And from the second evaluation in case of 3a, 0.7 to 0.8 pu power capacity and 1 to 2 pu-h for 0.1pu/20min and 1.0 pu and 10 to 15 pu-h are required for 0.3pu/360min. This paper provides relationship between maximum ramp rate in time windows and power and hour capacity requirement. The results help to answer questions whether power and hour capacity requirement satisfy grid codes with simple operating method of an energy storage system.

Study on business continuity capability by cooperative operation of photovotaic and battery energy storage system

Maruyama, Hiroki; Ishii, Hideo; Hayashi, Yasuhiro; Onojima, Hajime; Kojima, Yoshikane

Asia-Pacific Power and Energy Engineering Conference, APPEEC2016-January2016年01月-2016年01月 

DOIScopus

詳細

ISSN:21574839

概要:© 2015 IEEE. In this study, as a new index of facilities, business continuity capability on occasion of an energetically isolated operation, was defined and evaluated for the facility with a rich amount of resources such as private generators, a battery energy storage system and a PV generation system. A methodology was proposed to evaluate a duration during which the facility is self- sustaining regarding energy use. An effect of reducing the capacity of PV or battery was also examined.

Voltage fluctuation issue on distribution system at time of demand response and cooperating voltage control method between battery energy storage system and SVR

Yoshinaga, Jun; Yoshinaga, Jun; Akagi, Satoru; Akagi, Satoru; Ito, Masakazu; Ito, Masakazu; Hayashi, Yasuhiro; Hayashi, Yasuhiro; Ishibashi, Kazunari; Takahasi, Naoyuki; Takahasi, Naoyuki

IEEJ Transactions on Power and Energy136(4)p.400 - 4092016年01月-2016年01月 

DOIScopus

詳細

ISSN:03854213

概要:© 2016 The Institute of Electrical Engineers of Japan. Demand response can achieve peak-cut and peak-shift of the electric demand by delivering the load restraint of customers, based on Demand Response (DR) signal sent by an electric power company. However, the demand response restrains the load amount of many consumers simultaneously, so the voltage of the whole distribution system is greatly fluctuated depending on the distribution form such as line length, amount of load restraint, etc. Therefore, we propose the voltage control methods which can avoid voltage deviation in consideration of a time constant of demand response. Furthermore, we propose the BESS cooperating voltage control methods with LRT, SVR and verify the effectiveness using experiment of distribution system simulator.

PV導入量拡大を目的としたLRTおよびSVRと蓄電池による協調電圧制御手法

吉永 淳;赤木 覚;伊藤 雅一;林 泰弘;石橋 一成

電気学会論文誌. B136(3)p.291 - 3012016年-2016年

CiNii

詳細

ISSN:0385-4213

概要:Voltage deviation in distribution networks and photovoltaic (PV) output restriction, caused by a large amount of PV systems installation, have been issued recently. BESS (Battery Energy Storage System) is one of the solutions. However, the detailed evaluation of the voltage control effect of BESS has not been carried out, because its effect varies according to BESS placement, its output and configuration of distribution, etc. Therefore, the amount of PV introduction limits in several distribution networks were evaluated and effective BESS arrangement and output control were examined in this paper. The effectiveness of the proposed BESS cooperating voltage control method with LRT, SVR was verified using numerical simulation and experiment of distribution system simulator.

家庭用蓄電池とヒートポンプ給湯器による多数台太陽光発電システムの電気料金改善効果

宮本 裕介;林 泰弘

電気学会論文誌. B136(3)p.245 - 2582016年-2016年

CiNii

詳細

ISSN:0385-4213

概要:Recently home energy management system (HEMS) has been spread due to increase in awareness of save energy after Great East Japan Earthquake. HEMS consists of photovoltaic power system (PV), battery energy storage system (BESS) and heat pump water heater (HPWH), etc. Residential PV implementation rate has been increasing due to feed in tariff from 2009. So there is a danger of output suppression loss due to voltage increase on a distribution line due to reverse power flow from each residential PV. So we try to study how to reduce output suppression loss using BESS and HPWH optimally. One of the main purpose to implement BESS and HPWH is for economy using the difference in electricity charges between during nighttime and daytime. So in this research, we optimize how to operate BESS and HPWH to improve the benefit of the electric power selling charges and electricity charges considering reduction of output suppression loss and the difference in electricity charges between during nighttime and daytime.

デマンドレスポンス発動時の配電系統電圧変動問題と蓄電池とSVRの協調電圧制御手法

吉永 淳;赤木 覚;伊藤 雅一;林 泰弘;石橋 一成;高橋 尚之

電気学会論文誌. B136(4)p.400 - 4092016年-2016年

CiNii

詳細

ISSN:0385-4213

概要:Demand response can achieve peak-cut and peak-shift of the electric demand by delivering the load restraint of customers, based on Demand Response (DR) signal sent by an electric power company. However, the demand response restrains the load amount of many consumers simultaneously, so the voltage of the whole distribution system is greatly fluctuated depending on the distribution form such as line length, amount of load restraint, etc. Therefore, we propose the voltage control methods which can avoid voltage deviation in consideration of a time constant of demand response. Furthermore, we propose the BESS cooperating voltage control methods with LRT, SVR and verify the effectiveness using experiment of distribution system simulator.

Improvement of prediction interval estimation algorithm with just-in-time modeling for PV system operation

Yamazaki, Tomohide; Yamazaki, Tomohide; Wakao, Shinji; Wakao, Shinji; Fujimoto, Yu; Fujimoto, Yu; Hayashi, Yasuhiro; Hayashi, Yasuhiro

2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 20152015年12月-2015年12月 

DOIScopus

詳細

概要:© 2015 IEEE. Output of the photovoltaic (PV) system drastically fluctuates depending on weather conditions. Therefore users of PV systems should manage their energy usage with forecast information of the PV output. Due to the reasons above, we have developed an estimation method of X% prediction interval of solar irradiance. We have achieved a high-accuracy prediction interval for any prediction coefficient X%. However, we found that there are some errors in a case where the prediction coefficient is high. In this paper, we improve the estimation algorithm of the prediction interval.

Personalized Energy Management Systems for Home Appliances Based on Bayesian Networks

Tomoaki Shoji, Wataru Hirohashi, Yu Fujimoto, Yoshiharu Amano, Shin-ichi Tanabe & Yasuhiro Hayashi

Journal of International Council on Electrical Engineering2015年11月-

Islanding operation methods integrated with multiple power supplies and HEMS

Yoshinaga, Jun; Hirohashi, Wataru; Hayashi, Yasuhiro; Isoe, Yasuhito; Miyake, Jiro; Tsuchiya, Shizuo; Wada, Mikihiko

Proceedings - 2015 International Symposium on Smart Electric Distribution Systems and Technologies, EDST 2015p.436 - 4412015年11月-2015年11月 

DOIScopus

詳細

概要:© 2015 IEEE. This paper investigates the operation of various possible standalone power supply configurations for smart houses with a view to preventing inconvenience to residents when blackouts occur. In smart houses, various types of power-generation equipment (such as photovoltaic (PV), battery energy storage system (BESS), electric vehicle (EV), and fuel cell (FC) systems) with different output power, capacity, and response time characteristics are used. Our results indicate that combined use of these equipment and home energy management system (HEMS) control provide the best means of enabling residents to effectively use household appliances even in limited power supply situations.

多段設置された次世代SVRの最適整定値の動的更新手法

芳澤 信哉;山本 祐也;林 泰弘;佐々木 俊介;重藤 貴也;野村 英生

電気学会論文誌. B135(9)p.550 - 5582015年09月-

CiNii

詳細

ISSN:0385-4213

概要:This paper proposes a dynamic updating method of the optimal control parameters of multiple advanced step voltage regulators (SVRs) in a single feeder considering a massive introduction of photovoltaic (PV) systems. Each advanced SVR can adjust their tap position according to the updated control parameters in a certain period. The main feature of the proposed method is that the optimal parameters which minimize the voltage violation amount from the proper range and the tap operation count of SVR are determined quickly based on greedy algorithm. A numerical simulation is carried out on an actual distribution system model with the measured PV and load data so that the effectiveness of the proposed method can be evaluated.

41083 熱的快適性・省エネルギー性を考慮した窓システムとエアコンの協調制御 : その3:室温変動計算モデルの妥当性評価(住宅等の温熱環境(1),環境工学II,学術講演会・建築デザイン発表会)

江部 真里奈;竹中 大史;長澤 夏子;田辺 新一;吉田 彬;林 泰弘

学術講演梗概集2015(0)p.175 - 1762015年09月-2015年09月 

CiNii

詳細

ISSN:18839363

OLTC and multiple SVRs in distribution system by using database

Kawano, Shunsuke; Yoshizawa, Shinya; Fujimoto, Yu; Hayashi, Yasuhiro

IYCE 2015 - Proceedings: 2015 5th International Youth Conference on Energy2015年08月-2015年08月 

DOIScopus

詳細

概要:© 2015 IEEE. This paper presents a new method for determining the load drop compensator (LDC) parameters of On-load tap changer (OLTC) and step voltage regulators (SVRs) in the distribution system. Introduction of photovoltaic generation systems (PVs) into a distribution system makes determining the appropriate LDC parameters difficult, which may cause voltage deviation because reverse power flow from PVs affects voltage. Especially in the distribution system in which multiple SVRs are installed, determining the appropriate combination of LDC parameters becomes difficult. In the proposed method, the parameters are reset every hour by choosing one LDC parameter from a database including feasible parameters in the past. To create the database, the proposed method hourly enumerates the feasible parameters utilizing data acquired by SCADA. To evaluate the performance of the proposed method, the amount of voltage deviation of the proposed method will be compared with that of a centralized control method.

Distribution automation system for service restoration involving simultaneous disconnection and reconnection of distributed generators

Kawano, Shunsuke; Fujimoto, Yu; Wakao, Shinji; Hayashi, Yasuhiro; Irie, Hitoshi; Takenaka, Hideaki; Nakajima, Takashi Y.

2015 IEEE Eindhoven PowerTech, PowerTech 20152015年08月-2015年08月 

DOIScopus

詳細

概要:© 2015 IEEE. This paper presents a distribution automation system (DAS) for service restoration in the distribution network with photovoltaic (PV) generator systems, which are disconnected simultaneously after a fault and subsequently reconnected after service restoration. Because the reverse power flow of PVs affects voltage in the distribution system, voltage dips and surges occur during the service restoration. However, current DAS do not control voltage regulators such as an on-load tap changer (OLTC) and step voltage regulators (SVRs) during the service restoration. The proposed DAS estimates the voltage in a distribution network considering the simultaneous disconnection of PVs by performing power flow calculations, and it controls the tap position of OLTC and/or SVRs according to the predicted voltage deviation. The voltage after the disconnection of PVs is calculated by estimating the PV output utilizing square kilometer solar radiation data calculated using satellite image data in real time.

Dynamic voltage regulator operation with demand side management for voltage control

Mufaris, A. L M; Baba, J.; Yoshizawa, S.; Hayashi, Y.

2015 IEEE Eindhoven PowerTech, PowerTech 20152015年08月-2015年08月 

DOIScopus

詳細

概要:© 2015 IEEE. Widespread interconnection of Photovoltaic (PV) systems in the distribution system may create voltage rise problem. In this paper, a decentralized voltage control method by use of voltage regulators (VRs) and demand side management using consumer controllable load has been proposed for voltage rise compensation. The proposed method includes a novel determination method to find dynamic line drop compensation (LDC) parameters for a VR that has reverse power flow using the measured line current through VR and an optimal method that determines a dead band for a VR in order to lessens the number of tap operations while minimizing voltage deviation and violation. The obtained results show that voltage violation is extensively mitigated by the proposed method and no significant increment in tap operations of VR is encountered.

判別器を用いたLVRのLDC制御パラメータの高速決定手法

喜久里 浩之;高橋 尚之;吉永 淳;藤本 悠;林 泰弘;草川 慎一;茂木 規行

電気学会論文誌. B135(7)p.446 - 4532015年07月-

CiNii

詳細

ISSN:0385-4213

概要:Compensating the voltage within the appropriate range becomes difficult when a large number of photovoltaic (PV) systems are installed. As a solution to this problem, the installation of a low-voltage regulator (LVR) has been studied. In this paper, we propose a method for rapidly and accurately determining the line drop compensator method (LDC) parameters as a part of a voltage management scheme, which consists of prediction, operation, and control. In the proposed method, candidates of the appropriate LDC parameters are selected with low computational cost by using classifiers that learns the relation between power series data and the properness of LDC parameters. We performed numerical simulations to evaluate the validity from the viewpoints of computational time and classification accuracy for determination of the LDC parameters, and verified the voltage control performance of the proposed method.

長期間運用を想定したヒートポンプ給湯器による太陽光発電システムの電圧上昇抑制効果

宮本 裕介;林 泰弘

電気学会論文誌. B135(7)p.423 - 4362015年07月-

CiNii

詳細

ISSN:0385-4213

概要:There is a danger of output suppression of high-penetration residential PV systems due to voltage increase. It is necessary to install new technology to prevent the occurrence of such phenomenon. Therefore, we focused our attention on heat pump water heaters (HPWHs). HPWHs are usually used to heat water during night time because electricity prices are cheaper than during the daytime for the load leveling in Japan. So they can be used as a countermeasure without additional cost if they are operated during the daytime. However, HPWHs do not have sufficient capacity to absorb inverse energy at each residence. Thus HPWH operation must be optimized to minimize output suppression loss. In this research, we selected four typical sunny days in spring, summer, autumn and winter. The optimal HPWH operation was calculated by numerical simulation. The optimal monthly HPWH operation was investigated using the weather forecast assuming actual operation in each season.

太陽光発電出力予測のためのJust-In-Time Modelingを用いた日射量予測信頼区間の推定方法

山㟢 朋秀;本間 隼人;若尾 真治;藤本 悠;林 泰弘

電気学会論文誌. B135(3)p.160 - 1672015年03月-

CiNii

詳細

ISSN:0385-4213

概要:PV system recently attracts much attention on the back of environmental problems, antinuclear power movements and energy problems. Therefore, a large scale introduction of PV system is expected in the near future. On the other hand, a lot of PV systems connected to the power system bring on some problems. For example, a system voltage often drifts from the norm when the reverse power flow increase. Accordingly, it is necessary to perform an optimal system operation in order to utilize a solar energy to the maximum by installing energy buffers, e. g. storage batteries. Especially, the forecast information i.e., the reliability as well as predicted solar irradiance is essential for the effective operation. In this paper, we propose a way to estimate the prediction interval of the solar irradiance as an index of reliability by using Just-In-Time Modeling (JIT Modeling). We consider the accuracy of the prediction interval under many conditions and derive the high-precision estimation method. In addition, we also talk about the future outlook of this study.

Distribution Network Verification for Secure Restoration by Enumerating All Critical Failures

Takeru Inoue, Norihito Yasuda, Shunsuke Kawano, Yuji Takenobu, Shin-ichi Minato, and Yasuhiro Hayashi

IEEE TRANSACTIONS ON SMART GRID6(2)p.843 - 8522015年03月-

Coordinated BESS and LRT Control for Voltage Stabilization of a PV-Supplied Microgrid

Khoa Le Dinh,Yasuhiro Hayashi

電気学会論文誌B(電力・エネルギー部門誌)134(10)p.875 - 8842014年10月-

電力融通を考慮した燃料電池設置型集合住宅における熱電併給運用計画決定手法

亀田 真奈人;藤本 悠;林 泰弘

電気学会論文誌. B134(8)p.682 - 6912014年08月-

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詳細

ISSN:0385-4213

概要:In this paper, the authors propose an electric power interchange system in collective housing with fuel cells (FCs) and a determination method of operation plan for FCs in the collective housing. In the method, the operation plan for FCs is determined from an evaluation point, primary energy consumption of all houses in the collective housing, based on an enumeration method and particle swarm optimization (PSO) which is one of non-liner optimization methods. In order to examine the validity of the determination method, numerical simulations are carried out for the collective housing model, primary energy consumptions of the model are compared to those of a standard system (without FCs), and the reduction effects are evaluated taking uncertainty into consideration by using 10,000 demand patterns which are represented by 40 observational demand data based on the bootstrap method. In addition, the reduction effects by reducing introduced FCs by half are also evaluated from the point of primary energy consumptions, operating efficiency and running efficiency.

Evaluation of CO2 Reduction and Primary Energy Savings for Collective Housing with Fuel Cells Considering Variability in Demand

KAMEDA, Manato, FUJIMOTO, Yu and HAYASHI, Yasuhiro

Journal of Energy and Power Engineering8(2)p.274 - 2812014年02月-

分散型電源が連系された配電系統における故障点標定の精度に関する考察

飯岡 大輔;林 泰弘

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society133(6)p.515 - 5222013年06月-

CiNii

詳細

ISSN:03854213

概要:A fault locator system in a loop-shaped distribution system with inverter based distributed generations is proposed. An algorithm of proposed fault locator system is based on the impedance obtained by the phase-voltage and line-current at the transformer feeder in the power distribution substation. We have proposed the quadratic equation expressed in terms of fault location. The quadratic equation represents the impedance from the substation to the fault location. Inserting the impedance obtained by the voltage and current at the transformer feeder into the quadratic equation, two candidates of the fault location are obtained. We can select the true fault location from the two candidates by using the characteristics of impedance calculated by the voltage and current at the incoming feeder of distributed generation. The validity of the fault locator system was investigated by PSCAD/EMTDC simulations. As a result, it was found that impedance obtained by the information of the substation and distributed generations are useful for searching the fault location in the loop-shaped distribution system.

センサ開閉器情報の取得周期が配電系統電圧制御に与える影響の評価

宇田川 剛;林 泰弘;高橋 尚之;松浦 康雄;森田 智比古;南 雅弘

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society133(4)p.324 - 3322013年04月-

CiNii

詳細

ISSN:03854213

概要:Measured data from IT switches are utilized in order to control voltage in distribution systems with photovoltaic generation systems. However, length of period from the data measurement to the data acquisition from IT switches affects voltage control ability in the distribution automation system. In this paper, a voltage control method by LRT and SVR with the periodic data from IT switches is proposed, and using the method, the effect of the length of the data acquisition period for voltage control is evaluated through numerical simulations in a distribution system model. Furthermore, the optimal length of the data acquisition period is determined according to PV penetration rate.

バンク事故復旧対応型LRT・SVR協調電圧制御手法

芳澤 信哉;林 泰弘;辻 祐毅;神谷 英志

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society133(4)p.333 - 3422013年04月-

CiNii

詳細

ISSN:03854213

概要:Voltages in distribution system are maintained within a proper voltage range by adjusting a tap position of Load Ratio control Transformer (LRT) and Step Voltage Regulator (SVR). In Japan, many voltage control methods have been researched. However, these conventional methods do not presuppose the bank fault restoration. Since the main purpose of voltage control of the conventional restoration approach is to reduce the amount of voltage violation in distribution system, the number of customers with voltage violation cannot be reduced to zero during a bank fault restoration. In this paper, the authors propose a cooperation voltage control method of LRT and SVR to minimize the number of customers with voltage violation corresponding to the bank fault restoration in distribution systems with PV systems. In the proposed method, the tap position of SVR is controlled after the control of LRT to avoid frequent tap changes and each tap position of voltage control devices is controlled to minimize the number of customers with voltage violation. In order to check the effectiveness of the proposed method, the simulation using distribution system model with PV systems is performed under various conditions.

低圧配電系統における高速電圧計算手法の開発と評価

河野 俊介;林 泰弘;板屋 伸彦;高野 富裕;大野 哲史

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society133(4)p.343 - 3492013年04月-

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詳細

ISSN:03854213

概要:Since residential photovoltaic systems trend to increase in low-voltage distribution feeders, it is becoming more important to estimate voltage profile including not only high and middle but low-voltage distribution network to operate distribution systems. In case of using the conventional power flow calculation method based on iterative calculation, it will be taken much time to get voltage values all over low-voltage distribution feeders. This paper presents a new method to calculate voltage quickly keeping the accuracy sufficient for practical operation. In order to check the validity of the proposed method, numerical results are shown by comparing its computation accuracy and time with those of the conventional one.

PV導入ケースの多様性に対応した送配電系統の遮断器と開閉器の階層制御による送配電損失最小構成の決定手法

渡辺 喬之;林 泰弘

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society133(4)p.383 - 3952013年04月-

CiNii

詳細

ISSN:03854213

概要:Distribution system has huge number of configuration candidates because the network configuration is determined by state of many sectionalizing switches (SW: opened or closed) installed in terms of keeping power quality, reliability and so on. Transmission system also has huge number of configuration candidates and circuit breakers (CB: opened or closed) as same objective as distribution system. Since feeder current and voltage depend on the network configuration, losses of transmission and distribution systems can be reduced by controlling states of CB and SW. So far, various methods to determine the loss minimum configuration of transmission and distribution systems have been researched. However, a method that hierarchically determines the loss minimum configuration of transmission and distribution system with PV has not been proposed. In addition, power flow of whole system is changed by various PV penetration distribution patterns. Therefore, transmission and distribution losses must be evaluated in various PV penetration cases.In this paper, a hierarchy control method to determine a transmission and distribution loss minimum network configuration by controlling on-off states of CB and SW is proposed. The validity of the proposed method is evaluated to calculate the reduction of whole network loss in a transmission and distribution model with 48 CB and 1404 SW in two kinds of PV penetration cases.

不感帯制御SVCによる配電系統の動的電圧制御手法

高橋 尚之;林 泰弘

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society133(4)p.396 - 4032013年04月-

CiNii

詳細

ISSN:03854213

概要:This paper describes dynamic voltage control method using SVC with controllable dead band that changes dynamically to a node voltage in a distribution system installed SVC. Proposed method consists of three systems. First system detects probability of voltage deviation from proper range of node voltage. Second system is used to stabilize output of SVC based on changing dead band. Third system expect voltage trend. In order to verify the validity of the proposed method in comparison with conventional methods, numerical simulation and experiment were carried out using a distribution system model with RES.

Verification of Reduction Effect on Output Suppression through Storage Battery in Residential Area with Clustered PV Systems

T. Fujimori, Y.Miyamoto, Y. Hayashi

Journal of International Council on Electrical Engineering2(4)p.377 - 3832012年10月-

太陽光発電システム群の力率制御とLRTによる協調型電圧制御法

川崎 章司;金本 憲明;田岡 久雄;松木 純也;林 泰弘

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society132(4)p.309 - 3162012年04月-

CiNii

詳細

ISSN:03854213

概要:Recently, the number of system interconnection of the renewable energy sources (RES) such as the photovoltaic generation (PV) and wind power generation is increasing drastically, and there is in danger of changing the voltages in a distribution system by the precipitous output variation of RESs. In this study, the authors propose one voltage control method of the distribution system by the power factor control of plural PV systems in consideration of cooperation with the load ratio control transformer (LRT) of laggard control response installed beforehand in the distribution system. In the proposed method, the slow voltage variation is controlled by LRT, and the steep voltage variation uncontrollable by LRT is controlled by plural PV systems, as a result, all the node voltages are controllable within the proper limits. In order to verify the validity of the proposed method, the numerical calculations are carried out by using an analytical model of distribution system which interconnected PV systems.

Experimental Analysis on Influences of Harmonic Voltage at High- Voltage Network on Harmonic Current at Medium-Voltage Network

J. Inagaki, Y. Hayashi, Y. Tada

Journal of International Council on Electrical Engineering2(2)p.146 - 1522012年04月-

Method of Optimal Allocation of SVR in Distribution Feeders with Renewable Energy Sources

S. Takahashi, Y. Hayashi, Y. Tsuji, E. Kamiya

Journal of International Council on Electrical Engineering2(2)p.159 - 1652012年04月-

センサ開閉器情報を利用した複数台PCSによる配電ネットワークにおける総合電圧ひずみ率抑制手法

川崎章司、下田 一貴、田中 基寛、田岡 久雄、松木 純也、林泰弘

電気学会論文誌B(電力・エネルギー部門誌)131(12)p.936 - 9442011年12月-

詳細

概要:Recently, the amount of distributed generation (DG) such as photovoltaic system and wind power generator system installed in a distribution system has been increasing because of reduction of the effects on the environment. However, the harmonic troubles in the distribution system are apprehended in the background of the increase of connection of DGs through the inverters and the spread of power electronics equipment. In this paper, the authors propose a restraint method of voltage total harmonic distortion (THD) in a whole distribution network by active filter (AF) operation of plural power conditioner systems (PCS). Moreover, the authors propose a determination method of the optimal gain of AF operation so as to minimize the maximum value of voltage THD in the distribution network by the real-time feedback control with measured data from the information technology (IT) switches. In order to verify the validity of the proposed method, the numerical calculations are carried out by using an analytical model of distribution network interconnected DGs with PCS.

同期発電機の制動巻線による分散形電源連系時の三相不平衡の改善

松木 純也;田岡 久雄;林 泰弘;岩本 繁;大穀 晃裕

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society131(9)p.724 - 7292011年09月-

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詳細

ISSN:03854213

概要:It is well known in the numerical simulation of synchronous generator that the damper winding contributes to suppress the three-phase circuit unbalance in power systems. However, experimental study has not been performed yet. In this paper, authors verify experimentally the suppression of the three-phase unbalance by the damper windings. In order to simulate the three-phase unbalance, a 470W dispersed generator of single-phase-two-line type is connected to a three-phase laboratory-scale power system that includes a 6kVA synchronous generator. Authors measured and analyzed line voltages and currents as well as damper bar currents both with and without dispersed generator. The influence of damper windings to the unbalance of three-phase circuit is also investigated. The results show that the damper winding contributes to improve the three-phase unbalance.

PSOによるパラメータ推定を適用した動的負荷モデルの構築

田岡 久雄;松木 純也;友田 道也;林 泰弘;山岸 良雄;金尾 則一

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society131(7)p.557 - 5662011年07月-

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詳細

ISSN:03854213

同期発電機過渡時における制動巻線の効果の実機評価

松木 純也;田岡 久雄;林 泰弘;岩本 繁;大穀 晃裕

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society131(5)p.447 - 4542011年05月-

CiNii

詳細

ISSN:03854213

概要:This paper describes the results of experimental investigation on the effects of damper winding of a 4-pole synchronous generator at the synchronous generator transient. It is known in the simulation that the damper winding acts effectively at the synchronous generator transient condition. However, experimental proof has not been performed yet. Then, experiments on damper effects were conducted in this paper using a laboratory-scale power system. The damper winding of tested generator consists of 5 damper bars each pole and the number of working damper bars can be changed manually. Damper currents at each bar were measured by a Rogowski coil. FFT analysis was applied to both damper currents and armature currents under different operating conditions. Relationships between damper currents in the rotor and armature currents in the stator were made clearer than before.

Parameter Estimation of Dynamic Load Model in Power System by using Measured Data

Yasuhiro Hayashi,Michiya Tomoda,Junya Matsuki

Journal of International Council on Electrical Engineering1(2)p.200 - 2062011年04月-

Load Management using Heat-Pump Water Heater and Electric Vehicle Battery Charger in Distribution System with PV

Yasuhiro Hayashi,Yuji Hanai, Kazuaki Yoshimura , Junya Matsuki

Journal of International Council on Electrical Engineering1(2)p.207 - 2132011年04月-

系統の高調波抑制を目的としたPVシステムの協調制御手法

田中 基寛;川崎 章司;田岡 久雄;松木 純也;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2011(49)p.19 - 242011年03月-

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系統の高調波抑制を目的としたPVシステムの協調制御手法

田中 基寛;川崎 章司;田岡 久雄;松木 純也;林 泰弘

電気学会研究会資料. SPC, 半導体電力変換研究会2011(86)p.19 - 242011年03月-

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分散型電源導入拡大に対応した復旧目標構成の決定手法

高野 浩貴;林 泰弘;松木 純也;菅谷 周平

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society131(2)p.187 - 1952011年02月-2011年02月 

CiNii

詳細

ISSN:03854213

概要:In the field of electrical power system, various approaches, such as utilization of renewable energy, loss reduction, and so on, have been taken to reduce CO2 emission. So as to work toward this goal, the total number of distributed generators (DGs) using renewable energy connected into 6.6kV distribution system has been increasing rapidly. However, when a fault occurs such as distribution line faults and bank faults, DGs connecting outage sections are disconnected simultaneously. Since the output of DGs influences feeder current and node voltage of distribution system, it is necessary to determine the optimal system configuration considering simultaneous disconnection and reconnection of DGs.In this paper, the authors propose a computation method to determine the optimal restoration configuration considering many connections of DGs. The feature of determined restoration configurations is prevention of the violation of operational constraints by disconnection and reconnection of DGs. Numerical simulations are carried out for a real scale distribution system model with 4 distribution substations, 72 distribution feeders, 252 sectionalizing switches (configuration candidates are 2252) and 23.2MW DGs (which is 14% of total load) in order to examine the validity of the proposed algorithm.

スマートグリッド概論

林 泰弘

エネルギー・資源 = Energy and resources32(1)p.22 - 262011年01月-2011年01月 

CiNii

詳細

ISSN:02850494

LRTとの制御分担を考慮したSVCの協調型電圧制御法およびSVCの定格容量と制御パラメータの決定手法

川﨑章司,林 泰弘,松木純也,山口益弘

電気学会論文誌B(電力・エネルギー部門誌)Vol. 130(No. 11)p.963 - 9712010年11月-

再生可能エネルギー電源が連系された配電系統のループ化と集中型電圧制御の適用効果の実験的検証

花井悠二,林 泰弘,松木純也

電気学会論文誌B(電力・エネルギー部門誌)Vol. 130(No. 11)p.932 - 9402010年11月-

総論・スマートグリッド技術の動向と展開

林泰弘

電気評論2010(11)p.18 - 232010年11月-

再生可能エネルギー電源との調和に向けた先進グリッド技術の国内動向

林 泰弘

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society130(11)p.928 - 9312010年11月-2010年11月 

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詳細

ISSN:03854213

概要:In tandem with the penetration of Renewable Energy Sources (RES) such as photovoltaic and wind power generation to reduce CO2 emissions and conserve energy, development of advanced smart grid technologies is needed to secure a stable power supply of grid with RES by controlling power quality (voltage and frequency) within each secure range. This paper describes Japanese trend of the advanced smart grid technologies to harmonize RES and conventional bulk power system. Furthermore, several ongoing field tests to try to realize Japanese version of smart grid are briefly introduced.

再生可能エネルギー電源が連系された配電系統のループ化と集中型電圧制御の適用効果の実験的検証

花井 悠二;林 泰弘;松木 純也

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society130(11)p.932 - 9402010年11月-2010年11月 

CiNii

詳細

ISSN:03854213

概要:The line voltage control in a distribution network is one of the most important issues for a penetration of Renewable Energy Sources (RES). A loop distribution network configuration is an effective solution to resolve voltage and distribution loss issues concerned about a penetration of RES. In this paper, for a loop distribution network, the authors propose a voltage control method based on tap change control of LRT and active/reactive power control of RES. The tap change control of LRT takes a major role of the proposed voltage control. Additionally the active/reactive power control of RES supports the voltage control when voltage deviation from the upper or lower voltage limit is unavoidable. The proposed method adopts SCADA system based on measured data from IT switches, which are sectionalizing switch with sensor installed in distribution feeder. In order to check the validity of the proposed voltage control method, experimental simulations using a distribution system analog simulator "ANSWER" are carried out. In the simulations, the voltage maintenance capability in the normal and the emergency is evaluated.

LRTとの制御分担を考慮したSVCの協調型電圧制御法およびSVCの定格容量と制御パラメータの決定手法

川崎 章司;林 泰弘;松木 純也;山口 益弘

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society130(11)p.963 - 9712010年11月-2010年11月 

CiNii

詳細

ISSN:03854213

概要:In recent years, the number of connection of distributed generators (DGs) such as the photovoltaic generation (PV) and wind power generation is increasing, and there is in danger of changing the voltages in a distribution system by the precipitous output variation of DGs. In this study, the authors propose one voltage control method of a distribution system by the static var compensator (SVC) in consideration of cooperation with the load ratio control transformer (LRT) of laggard control response installed beforehand in the distribution system. The proposed method may be able to make the rated capacity of SVC small and may be able to reduce the aggravation of power factor of the distribution system, by setting up the dead band of voltage control appropriately. And the authors propose one determination method of the necessary minimum rated capacity and optimum control parameters of SVC in view of the cost of equipment and high-speed controllability. In order to verify the validity of the proposed method, the numerical calculations are carried out by using a distribution system model.

Restraint Method of Voltage Total Harmonic Distortion in Distribution System by Power Conditioner Systems Using Measured Data from IT Switches

S. Kawasaki, J. Matsuki, and Y. Hayashi

The 9th International Power and Energy Conference (IPEC2010)2010年10月-

センサ開閉器から得られる計測情報を活用した配電系統の電圧推定・制御手法の提案実験的検証

花井 悠二, 林 泰弘, 松木 純也, 栗原 雅典

電気学会論文誌B(電力・エネルギー部門誌)Vol. 130(No. 10)p.859 - 8692010年10月-

センサ開閉器から得られる計測情報を活用した配電系統の電圧推定・制御手法の提案と実験的検証

花井 悠二, 林 泰弘, 松木 純也, 栗原 雅典

電気学会論文誌. B, 電力・エネルギー部門誌130(10)p.859 - 8692010年10月-2010年10月 

CiNii

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ISSN:03854213

概要:This paper describes distribution voltage estimation and a control method using measured data from sectionalizing switches with sensors which are called IT switch. The voltage estimation is based on Particle Swarm Optimization (PSO) and all distribution line voltages are estimated by minimizing the weighted sum of voltage and current error at IT switch. The voltage control maintains all the estimated node voltages within the proper range by changing tap of a LRT in a distribution substation. In order to check the validity of the proposed method, numerical and experimental simulations are carried out on a distribution system model.

解説・スマートグリッドの国内動向

林泰弘

低温工学会報vol.45(No.9)p.410 - 4162010年09月-

センサ開閉器情報を利用した複数台PCSによる配電ネットワークにおける総合電圧ひずみ率抑制方法

川崎 章司;下田 一貴;松木 純也;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(46)p.115 - 1202010年09月-2010年09月 

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家庭用太陽光発電システム多数台連系時の出力抑制回避の最大化を目的とした電圧上昇抑制動作パラメータの整定値の評価

宮本 裕介;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.123 - 1312010年09月-2010年09月 

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PVシステム群におけるオンオフ制御と蓄電池を用いた充放電制御の協調による安定化制御の評価

村橋 圭祐;林 泰弘;林 孝則;奥野 義道;舟橋 俊久

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.133 - 1372010年09月-2010年09月 

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センサ開閉器区間情報を用いた電圧推定に基づくLRTとSVRによる複数フィーダの集中型電圧制御手法

高橋 修平;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(46)p.139 - 1432010年09月-2010年09月 

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PV大量連系配電系統における不感帯可変SVCによる電圧制御

高橋 尚之;林 泰弘;森 健二郎

電気学会研究会資料. PSE, 電力系統技術研究会2010(45)p.151 - 1562010年09月-2010年09月 

CiNii

分散型電源の連系線電圧・電流から算出するインピーダンスによる故障点標定

飯岡 大輔;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(52)p.1 - 62010年09月-2010年09月 

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単相連系PVの導入拡大が配電系統の電力品質に与える影響評価

花井 悠二;松木 純也;佐野 正裕;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.1 - 62010年09月-2010年09月 

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PVが導入された配電系統のバンク事故復旧時における電圧逸脱地域最小化手法

芳澤 信哉;林 泰弘;森 健二郎;神谷 英志

電気学会研究会資料. PSE, 電力系統技術研究会2010(45)p.145 - 1492010年09月-2010年09月 

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PVが導入された配電系統のバンク事故復旧時における電圧逸脱地域最小化手法

芳澤 信哉;林 泰弘;森 健二郎;神谷 英志

電気学会研究会資料. PE, 電力技術研究会2010(46)p.145 - 1492010年09月-2010年09月 

CiNii

分散型電源の連系線電圧・電流から算出するインピーダンスによる故障点標定

飯岡 大輔;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(53)p.1 - 62010年09月-2010年09月 

CiNii

単相連系PVの導入拡大が配電系統の電力品質に与える影響評価

花井 悠二;松木 純也;佐野 正裕;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(77)p.1 - 62010年09月-2010年09月 

CiNii

LRTと太陽光発電システム群の力率制御による協調型電圧制御法

金本 憲明;川崎 章司;松木 純也;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(77)p.7 - 122010年09月-2010年09月 

CiNii

太陽光発電大量導入時の電圧上昇と電圧不平衡率の改善を目的とした燃料電池の無効電力制御に関する研究

佐野 正裕;花井 悠二;林 泰弘;進士 誉夫;辻田 伸介

電気学会研究会資料. PE, 電力技術研究会2010(77)p.19 - 232010年09月-2010年09月 

CiNii

PVの大量導入における複数台SVCの最適設置箇所に関する研究

小西 啓佑;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(77)p.25 - 282010年09月-2010年09月 

CiNii

家庭用太陽光発電システム多数台連系時の出力抑制回避の最大化を目的とした電圧上昇抑制動作パラメータの整定値の評価

宮本 裕介;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(77)p.123 - 1312010年09月-2010年09月 

CiNii

PVシステム群におけるオンオフ制御と蓄電池を用いた充放電制御の協調による安定化制御の評価

村橋 圭祐;林 泰弘;林 孝則;奥野 義道;舟橋 俊久

電気学会研究会資料. PE, 電力技術研究会2010(77)p.133 - 1372010年09月-2010年09月 

CiNii

PV群と複数台GEの協調制御によるPV出力変動補償に関する研究

保科 俊一朗;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(77)p.139 - 1422010年09月-2010年09月 

CiNii

スマートハウスを活用した配電系統における負荷管理手法の評価

吉村 和晃;花井 悠二;松木 純也;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(77)p.149 - 1542010年09月-2010年09月 

CiNii

PCSによる系統の電圧不平衡改善および高調波抑制

川崎 章司;松木 純也;田中 基寛;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(77)p.155 - 1602010年09月-2010年09月 

CiNii

PSOによるパラメータ推定を適用した動的負荷のモデル化

田岡 久雄;松木 純也;友田 道也;林 泰弘;金尾 則一;山岸 良雄

電気学会研究会資料. PE, 電力技術研究会2010(110)p.91 - 962010年09月-2010年09月 

CiNii

再生可能エネルギーによる周波数変動の送電線混雑管理を目的とした発電機の出力配分

鈴木 浩章;林 泰弘;輿水 源太郎

電気学会研究会資料. PE, 電力技術研究会2010(126)p.19 - 222010年09月-2010年09月 

CiNii

PV群集中管理を目的としたPV導入エリアの決定に関する研究

永田 耕一;花井 悠二;松木 純也;林 泰弘

電気学会研究会資料. PE, 電力技術研究会2010(149)p.55 - 602010年09月-2010年09月 

CiNii

スマートグリッドの国内動向

林 泰弘

低温工学45(9)p.410 - 4162010年09月-2010年09月 

CiNii

詳細

ISSN:03892441

分散型電源導入拡大に対応した配電系統の最適構成に関する検討

高野 浩貴;菅谷 周平;林 泰弘;松木 純也;牧 雪乃

電気学会研究会資料. PSE, 電力系統技術研究会2010(45)p.83 - 882010年09月-2010年09月 

CiNii

センサ開閉器情報を利用した複数台PCSによる配電ネットワークにおける総合電圧ひずみ率抑制方法

川崎 章司;下田 一貴;松木 純也;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(45)p.115 - 1202010年09月-2010年09月 

CiNii

センサ開閉器区間情報を用いた電圧推定に基づくLRTとSVRによる複数フィーダの集中型電圧制御手法

高橋 修平;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(45)p.139 - 1432010年09月-2010年09月 

CiNii

LRTと太陽光発電システム群の力率制御による協調型電圧制御法

金本 憲明;川崎 章司;松木 純也;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.7 - 122010年09月-2010年09月 

CiNii

太陽光発電大量導入時の電圧上昇と電圧不平衡率の改善を目的とした燃料電池の無効電力制御に関する研究

佐野 正裕;花井 悠二;林 泰弘;進士 誉夫;辻田 伸介

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.19 - 232010年09月-2010年09月 

CiNii

PVの大量導入における複数台SVCの最適設置箇所に関する研究

小西 啓佑;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.25 - 282010年09月-2010年09月 

CiNii

PV群と複数台GEの協調制御によるPV出力変動補償に関する研究

保科 俊一朗;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.139 - 1422010年09月-2010年09月 

CiNii

スマートハウスを活用した配電系統における負荷管理手法の評価

吉村 和晃;花井 悠二;松木 純也;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.149 - 1542010年09月-2010年09月 

CiNii

PCSによる系統の電圧不平衡改善および高調波抑制

川崎 章司;松木 純也;田中 基寛;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.155 - 1602010年09月-2010年09月 

CiNii

PSOによるパラメータ推定を適用した動的負荷のモデル化

田岡 久雄;松木 純也;友田 道也;林 泰弘;金尾 則一;山岸 良雄

電気学会研究会資料. PSE, 電力系統技術研究会2010(109)p.91 - 962010年09月-2010年09月 

CiNii

再生可能エネルギーによる周波数変動の送電線混雑管理を目的とした発電機の出力配分

鈴木 浩章;林 泰弘;輿水 源太郎

電気学会研究会資料. PSE, 電力系統技術研究会2010(125)p.19 - 222010年09月-2010年09月 

CiNii

PV群集中管理を目的としたPV導入エリアの決定に関する研究

永田 耕一;花井 悠二;松木 純也;林 泰弘

電気学会研究会資料. PSE, 電力系統技術研究会2010(148)p.55 - 602010年09月-2010年09月 

CiNii

A Basic Study of Coordinated Control Method for Heat Pump Water Heaters and Electric Vehicle Battery Chargers

Y. Hanai, K. Yoshimura, J. Matsuki, and Y. Hayashi

16th International Conference on Electrical Engineering (ICEE)2010年07月-

A Basic Study of Load Management using Heat-Pump Water Heater and Electric Vehicle Battery Charger in Distribution System with PV

Y. Hanai, K. Yoshimura, J. Matsuki, and Y. Hayashi

16th International Conference on Electrical Engineering (ICEE)2010年07月-

Restraint Method of Voltage Total Harmonic Distortion in Distribution System by Active Filter Operation of Distributed Generators with Inverter Using Measured Data from IT Switches

S. Kawasaki, K. Shimoda, J. Matsuki, and Y. Hayashi

16th International Conference on Electrical Engineering (ICEE)2010年07月-

An Evaluation of Influences on Distribution Network by Connection Cases of PVs

H. Takano, K. Nagata, Y. Hayashi, and J. Matsuki

I16th International Conference on Electrical Engineering (ICEE)2010年07月-

Verification of Multi-Objective Power Factor Control Method of Photovoltaic Generation Systems by Scaled-down Distribution Network Equipment

N. Kanemoto, S. Sakai, S. Kawasaki, J. Matsuki, and Y. Hayashi

16th International Conference on Electrical Engineering (ICEE)2010年07月-

Impact of Power System Configuration and Control Methodology of Inverter Based Distributed Generation on Fault Current

D. Iioka, Y. Hayashi

16th International Conference on Electrical Engineering (ICEE)2010年07月-

分散型電源連系課題解決支援システム(ANSWER)の構築と分散型電源と配電ネットワークとの協調運用形態の実験検証

酒井重和,林 泰弘,川崎章司,松木純也,馬場旬平,横山明彦,北條昌秀,若尾真治,森健二郎,不破由晃

電気学会論文誌B(電力・エネルギー部門誌)Vol. 130(No. 5)p.473 - 4832010年05月-

スマートグリッドと国内導入の必要性

林泰弘

電気協会報・特集2010(5)p.7 - 112010年05月-

分散型電源連系課題解決支援実験システム (ANSWER) の構築と分散型電源と配電ネットワークとの協調運用形態の実験検証

酒井 重和;林 泰弘;川崎 章司;松木 純也;馬場 旬平;横山 明彦;北條 昌秀;若尾 真治;森 健二郎;不破 由晃

電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society130(5)p.473 - 4832010年05月-2010年05月 

CiNii

詳細

ISSN:03854213

概要:Recently, total number of distributed generators (DGs) such as photovoltaic generation system and wind power generation system connected to an actual distribution network increases drastically. The distribution network connected with many distributed generators must be operated keeping reliability of power supply, and power quality. In order to accomplish active distribution network operation to take advantage of many connections of DGs, a new coordinated operation of distribution system with many connections of DGs is necessary. So far, the authors have proposed a coordinated operation of distribution network system connected with many DGs by using sectionalizing switches control method, sending voltage control method, computation method of acceptable maximum output of DG and determination method of optimal smoothing time constant of wind power generation system with storage battery. In this paper, the authors develop an experiment of scaled-down three-phase distribution system with distributed generators in order to check the validity of the proposed approach.

Voltage Control for a Loop Distribution System with Renewable Energy Sources

Y. Hanai, J. Matsuki, Y. Hayashi

The International Conference on Renewable Energies and Power Quality(ICREPQ'10), Spain2010年03月-

スマートグリッドの国内動向

林 泰弘

低温工学45(9)p.410 - 4162010年-2010年

CiNii

詳細

ISSN:0389-2441

概要:Through use of smart grids, countries around the world are aiming to realize construction of 21st-century electric systems that provide people with abundant, affordable, clean, efficient and reliable electric power regardless of time or location. In addition to adding advanced functions to the nation's electricity grid and thus enhancing reliability, efficiency and security, a smart grid also contributes to the strategic climate-change goal of reducing carbon emissions. This paper describes the trend toward smart grids in Japan for smooth integration of increased use of renewable energy sources and conventional bulk power systems. Several ongoing Japanese field tests relating to smart grids are also briefly introduced.

分散型電源が連系された配電ネットワークにおけるアクティブフィルタの最適設置決定手法

川﨑章司,林 泰弘,松木純也,菊谷裕隆,北條昌秀

電気学会論文誌B129-B(6)p.733 - 7442009年06月-

分散型電源の導入拡大に対応した配電系統電圧制御の動向と展望

林 泰弘

電気学会論文誌B129-B(4)p.491 - 4942009年04月-

Determination Method of Optimal Operation Schedule for Fuel Cells in Collective Housing

Yasuhiro Hayashi, Shoji Kawasaki, Junya Matsuki, Atsushi Tomomoto, Hideki Miyamoto, Toshihisa Funabashi, Yoshimichi Okuno, Takanori Hayashi

IEEJ Transactions on Power and Energy査読有り128(10)p.1217 - 12262008年10月-

詳細

概要:In this paper, the authors propose a power and heat interchange system using fuel cells (FCs) in a collective housing and develop a determination method of optimal operation schedule for FCs in this system. The developed method is based on tabu search which is one of non-linear optimization methods. In the developed method, the optimal operation schedule is determined by using Pareto optimal solutions from two evaluation viewpoints ((1) running cost, (2) CO2 emission). In order to examine the validity of the developed method, numerical simulations are carried out for the collective housing model with 12 houses in winter, summer and middle season, and the optimal operation schedules are determined.

Determination Method of Optimal Operation Schedule for Fuel Cell System in Collective Housing

Y.Hayashi, S.Kawasaki, J.Matuki, A.Tomomoto, T.Funabashi, Y.Okuno, T.Hayashi

Proceedings of the International Conference on Electrical Engineering 20082008年-

Determination of Optimal Smoothing Time Constant of Wind Power Generation System with Storage Battery to Control Voltage and Load Fluctuation

Y.Hayashi, S.Kawasaki, S.Sakai, J.Matuki

Proceedings of the International Conference on Electrical Engineering 20082008年-

Multi Evaluation Method of Distribution Network with Distributed Generators

Y.Hayashi, S.Kawasaki, J.Matuki, S.Sakai, Y.Fuwa, K.Mori

International Journal of Innovations in Energy Systems and PowerVol 3(no. 2)2008年-

Optimal Allocation and Gain of Active Filter for Distribution Network Connected Distributed Generation

S.Kawasaki, Y.Hayashi, J.Matuki, H.Kikuya, M.Hojo

Proceedings of the International Conference on Electrical Engineering 20082008年-

Active Coordinated Operation of Distribution Network System for Many Connections of Distributed Generators

Yasuhiro Hayashi, Shoji Kawasaki, Junya Matsuki, Shinji Wakao, Junpei Baba Masahide Hojo, Akihiko Yokoyama, Naoki Kobayashi, Takao Hirai, Kohei Oishi

IEEJ Transactions on Power and Energy査読有り127(1)p.41 - 512007年01月-

詳細

概要:Recently, total number of distributed generators (DGS) such as photovoltaic generation system and wind turbine generation system connected to an actual distribution network increases drastically. The distribution network connected with many distributed generators must be operated keeping reliability of power supply, power quality and loss minimization. In order to accomplish active distribution network operation to take advantage of many connections of DGS, a new coordinated operation of distribution system with many connections of DGS is necessary. In this paper, the authors propose a coordinated operation of distribution network system connected with many DGS by using newly proposed sectionalizing switches control, sending voltage control and computation of available DG connection capability. In order to check validity of the proposed coordinated operation of distribution system, numerical simulations using the proposed coordinated distribution system operation are carried out in a practical distribution network model.

Active coordinated Operation of Distribution Network with Distributed Generators

Y.Hayashi, S.Kawasaki, J.Matuki, S.Sakai, J.Baba, A.Yokoyama, M.Hojo, S.Wakao, N.Kobayashi, K.Oishi

Proceedings of the International Conference on Electrical Engineering 20072007年-

Basic Study on Optimal Smoothing Time Constant of Wind Power Generation System with Storage Battery to Inhibit Voltage Flunctuation in Distribution Network

Y.Hayashi, S.Kawasaki, J.Matuki, T.Nomura

Proceedings of the International Conference on Electrical Engineering 20072007年-

Decision Method of Optimal 24-Hours Sending Voltage Profile in Distribution Network with PV Systems

Y.Hayashi, Y.Hanai, J.Matuki, Y.Fuwa, K.Mori

Proceedings of 17th International Photovoltaic Science and Engineering Conference2007年-

Determination Method of Optimal Operation Schedule for Power and Heat Interchange System using Fuel Cells in Collective Housing

Y.Hayashi, S.Kawasaki, J.Matuki, T.Funabashi, Y.Okuno, T.Hayashi

Proceedings of IEEJ-EIT Joint Symposium on Advanced Technology in Power Systemsp.101 - 1062007年-

Development of Computation Method to Determine Optimal Setting Value for LDC Voltage Controller Using Measured Information

Y.Hayashi, Y.Hanai, J.Matuki, N.Kobayashi, K.Oishi

Proceedings of the International Conference on Electrical Engineering 20072007年-

Evaluation of Reduced CO2 Emissions by Distribution Loss Minimization in Japanese Distribution System

Y.Hayashi, J.Matuki, H.Takano, M.Yokoyama

Proceedings of the International Conference on Electrical Engineering 20072007年-

Experimental study on the unified power flow controller

J.Matuki, Y.Hayashi, S.Kitajima, M.Takahashi, K.Murata

Electrical Engineering in Japan161(2)p.8 - 152007年-

Multi-objective Evaluation of Radial and Loop Distribution Network Configuration Using Distribution Network Equipment

Y.Hayashi, S.Kawasaki, J.Matuki, S.Sakai, Y.Fuwa, K.Mori

Proceedings of IEEJ-EIT Joint Symposium on Advanced Technology in Power Systemsp.95 - 1002007年-

Online Optimization Method for Operation of Generators in a Micro Grid

Y.Hayashi, H.Miyamoto, J.Matuki, T.Iizuka, H.Azuma

Proceedings of the International Conference on Electrical Engineering 20072007年-

Power and Heat Interchange System using Fuel Cells in Collective Housing

Y.Hayashi, S.Kawasaki, T.Funabashi, Y.Okuno

Proceedings of The Fourth Power Conversion Conference, PCC-Nagoya 20072007年-

Seasonal Change of Power Quality Based on Real Data at the Distribution System of Fukui University Campus

J.Matuki, Y.Hayashi, S.Kawasaki, A.Ito

Proceedings of the International Conference on Electrical Engineering 20072007年-

Simultaneous Determination Method of Control Parameters of Voltage Regulators Installed in Radial Distribution Network Using Measurement Data

Y.Hayashi, Y.Hanai, J.Matuki, K.Mori, Y.Fuwa

Proceedings of IEEJ-EIT Joint Symposium on Advanced Technology in Power Systems2007年-

Study on Optimal Allocation and Gain of Active Filter Considering Distribution Network Configuration

S.Kawasaki, Y.Hayashi, J.Matuki, H.Kikuya, M.Hojo

Proceedings of the International Conference on Electrical Engineering 20072007年-

Verification of Proposed Active Operation of Power Grid with PV Systems by Scaled-down Distribution Network Equipment

Y.Hayashi, S.Sakai, J.Matuki, Y.Fuwa, K.Mori

Proceedings of 17th International Photovoltaic Science and Engineering Conference2007年-

A Fault Location Method using Air-Gap Fluxes of Synchronous Generator

Junya Matsuki, Yasuhiro Hayashi, Toshikazu Nakano, Yoichi Funasaki

IEEJ Transactions on Power and Energy査読有り127(3)p.495 - 5012007年-

詳細

概要:This paper deals with experimental investigation on a novel fault location method using air-gap flux distributions of a synchronous generator connected to a power system. Air-gap fluxes are the sum of field fluxes and armature reaction fluxes. Changes in armature current and field current at fault contribute directly to the armature reaction fluxes and field fluxes, then resultant air-gap fluxes. Therefore, air-gap fluxes can be utilized to locate fault. Wavelet analysis is applied to induced voltages of search coils which are wound around a stator tooth top for measurement of air-gap flux. It is shown that fault type and location are estimated from the change of search coil voltages measured during fault.

Computation of Locational and Hourly Maximum Output of a Distributed Generator Connected to a Distribution Feeder

Yasuhiro Hayashi, Junya Matsuki, Yuji Hanai, Shinpei Hosokawa, Naoki Kobayashi

IEEJ Transactions on Power and Energy査読有り126(10)p.1023 - 10312006年10月-

詳細

概要:Recently, the total number of distributed generation such as photovoltaic generation system and wind turbine generation system connected to distribution network is drastically increased. Distributed generation utilizing renewable energy can reduce the distribution loss and emission of CO2. However the distribution network with the distributed generators must be operated keeping reliability of power supply and power quality. In this paper, the authors propose a computation method to determine the maximum output of a distributed generator under the operational constrains ((1) voltage limit, (2) line current capacity, and (3) no reverse flow to bank) at arbitrary connection point and hourly period. In the proposed method, three-phase iterative load flow calculation is applied to evaluate the above operational constraints. Three-phase iterative load flow calculation has two simple procedures: (Procedure1) addition of load currents from terminal node of feeder to root one, and (Procedure2) subtraction of voltage drop from root node of feeder to terminal one. In order to check the validity of the proposed method, numerical simulations are accomplished for a distribution system model. Furthermore, characteristics of locational and hourly maximum output of distributed generator connected to distribution feeder are analyzed by several numerical examples.

Establishment of a Standard Analytical Model of Distribution Network with Distributed Generators and Development of Multi Evaluation Method for Network Configuration Candidates

Yasuhiro Hayashi, Shoji Kawasaki, Junya Matsuki, Hiroaki Matsuda, Shigekazu Sakai, Teru Miyazaki, Naoki Kobayashi

IEEJ Transactions on Power and Energy査読有り126(10)p.1013 - 10222006年10月-

詳細

概要:Since a distribution network has many sectionalizing switches, there are huge radial network configuration candidates by states (opened or closed) of sectionalizing switches. Recently, the total number of distributed generation such as photovoltaic generation system and wind turbine generation system connected to the distribution network is drastically increased. The distribution network with the distributed generators must be operated keeping reliability of power supply and power quality. Therefore, the many configurations of the distribution network with the distributed generators must be evaluated multiply from various viewpoints such as distribution loss, total harmonic distortion, voltage imbalance and so on. In this paper, the authors propose a multi evaluation method to evaluate the distribution network configuration candidates satisfied with constraints of voltage and line current limit from three viewpoints ((1) distribution loss, (2) total harmonic distortion and (3) voltage imbalance). After establishing a standard analytical model of three sectionalized and three connected distribution network configuration with distributed generators based on the practical data, the multi evaluation for the established model is carried out by using the proposed method based on EMTP (Electro-Magnetic Transients Programs).

Experimental Study on the Unified Power Flow Controller

Junya Matsuki, Yasuhiro Hayashi, Shunsuke Kitajima, Masahiro Takahashi, Kenji Murata

IEEJ Transactions on Power and Energy126(6)p.605 - 6102006年06月-

詳細

概要:This paper presents the results of experimental study on the performance of a Unified Power Flow Controller (UPFC), one of the FACTS (Flexible AC Transmission Systems) controllers. A laboratory-scale UPFC was manufactured and installed on a laboratory electric power system to investigate its multifunctional capabilities as a power flow controller. The UPFC consists of two 4.5kVA, 200V back-to-back voltage-sourced converters, labeled “Converter 1" and “Converter 2", operated from a common DC link provided by a DC storage capacitor of 380V. It can provide independent control of both the real and reactive power flow in the line. Tests were performed to examine the capabilities of UPFC, under one-machine connected to an infinite-bus system. Steady-state responses under various kinds of operating conditions were measured and analyzed.

Determination Method of Loss-minimum Configuration with Mathematical Optimality in a Three Sectionalized and Three Connected Distribution Feeder Network

Yasuhiro Hayashi, Junya Matsuki, Shinji Ishikawa, Hirotaka Takano, Eiji Muto, Naoki Kobayashi

IEEJ Transactions on Power and Energy126(5)p.516 - 5242006年05月-

詳細

概要:In a distribution system, in order to enhance the reliability of power supply, the distribution feeder is divided into several sections by installing sectionalizing switches, and then each of sectionalized sections is connected to different feeder. For example, one feeder is divided into three sections by two sectionalizing switches, and then each of divided sections is connected to other feeder through sectionalizing switch. Since a distribution system with many feeders has many sectionalizing switches, the system configuration is determined by states (opened or closed) of sectionalizing switches. Usually, power utility tries to obtain distribution loss-minimum configuration among large numbers of configuration candidates. However, it is very difficult to determine the loss-minimum configuration that the mathematical optimality is guaranteed, because it is well known that determination of distribution system's configuration is to decide whether each sectionalizing switch is opened or closed by solving a combinatorial optimization problem. In this paper, the authors propose a determination method of loss minimum configuration which the mathematical optimality is guaranteed for a three sectionalized and three connected distribution feeder network. A problem to determine the loss minimum configuration is formulated as a combinatorial optimization problems with four operational constraints ((1) feeder capacity, (2) voltage limit, (3) radial structure and (4) three sectionalization). In the proposed method, after picking up all partial configurations satisfied with radial structure constraint by using enumeration method, optimal combination of partial configurations is determined under the other operational constraints by using conventional optimization method. Numerical simulations are carried out for a distribution network model with 140 sectionalizing switches in order to examine the validity of the proposed algorithm in comparison with one of conventional meta-heuristics (Tabu search).

Service Restoration Method Considering Simultaneous Disconnection of Distributed Generators by One Bank Fault of Distribution System

Hirotaka Takano, Yasuhiro Hayashi, Junya Matsuki, Naoki Kobayashi

IEEJ Transactions on Power and Energy査読有り126(3)p.336 - 3462006年03月-

詳細

概要:Distributed generators (DGs) such as fuel cells and solar cells etc. are going to be installed in demand side of distribution systems. The distributed generators can reduce distribution loss by appropriate allocation. However, there are several problems to install DGs such as service restoration of distribution system with DGs and so on. When one bank fault of distribution substation occurs in distribution system, since DGs are simultaneously disconnected from the system, it is not easy to restore isolated load by one bank switching in distribution substation. Therefore, a service restoration method to determine restoration configuration and restoration procedures (switching procedure from normal configuration to restoration configuration) taking into account simultaneous disconnection of DGs is needed. In this paper, the authors propose a computation method to determine the optimal restoration configuration and the restoration procedure considering simultaneous disconnection of DGs by one bank fault of distribution system. In the proposed algorithm, after all of restoration configuration candidates are effectively enumerated under the operational constraints, the optimal configuration to restore the isolated load is selected among enumerated configuration candidates. After determining the optimal restoration configuration, the optimal restoration procedures are obtained by greedy algorithm. Numerical simulations are carried out for a real scale system model with 237 sectionalizing switches (configuration candidates are 2237) and 21DGs (total output is 5250kW which is 3% of total load) in order to examine the validity of the proposed algorithm.

Acceptable Maximum Output of Potential Renewable Energy Sources for a Distribution Feeder

Y.Hayashi, J.Matsuki, Y.Hanai, N.Kobayashi, T.Hirai, K.Ohishi

Proc. of Renewable Energy 20062006年-

Determination of the Optimal Restoration Configuration Based on Enumeration Method

Hirotaka Takano, Yasuhiro Hayashi, Junya Matsuki, Naoki Kobayashi

Proc. of ICEE 2006 International Conference on Electrical Engineering2006年-

Effective Enumeration Method of Determine Loss Mimimum Distribution Network Configuration

Hirotaka Takano, Yasuhiro Hayashi, Junya Matsuki, Naoki Kobayashi

Proc. of ICEE 2006 International Conference on Electrical Engineering2006年-

Evaluation of Available Maximum Output of Distributed Generator Connected to Distribution System

S.Kawasaki, Y.Hayashi, J.Matuki, S.Hosokawa, N.Kobayashi

Proc. of ICEE2006 International Conference on Electrical Engineering2006年-

Integrated Determination Method of Transmission and Distribution Loss-minimum Network Configuration

Yasuhiro Hayashi, Hirotaka Takano, Junya Matsuki

IEEJ Transactions on Electrical and Electronic Engineering1(3)p.216 - 2252006年-

Multi Evaluation of Distribution Network Configuration Candidates

S.Kawasaki, Y.Hayashi, J.Matuki, H.Matsuda, S.Sakai, T.Miyazaki, N.Kobayashi

Proc. of ICEE2006 International Conference on Electrical Engineering2006年-

Optimal Grid Voltage Control in Distribution Feeder Connected PV

Y.Hayashi, J.Matuki, S.Kawasaki, S.Hosokawa, N.Kobayashi

Proc. of WCPEC4 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion2006年-

An Estimation Method of Load Model Parameters for Harmonic Analysis

Yasuhiro Hayashi, Junya Matsuki, Kenichi Kobayashi, Norikazu Kanao

IEEJ Transactions on Power and Energy査読有り125(10)p.939 - 9472005年10月-

詳細

概要:In order to devise countermeasures for harmonic disturbances and harmonic suppression in power systems effectively, it is necessary to develop a harmonic analysis approach with high accuracy. The major harmonic analysis approach is to recreate harmonic distribution in a power system model by using a simulation method. However, in order to carry out high accuracy estimation of the harmonic distribution using the simulation method, after creating a load model which consists of several parameters associated with the measured harmonic impedance, the optimal load model parameters must be determined. So far, appropriate load model parameters have been determined by trial and error. Therefore, a systematic approach to determine the optimal load model parameters is needed to estimate the measured harmonic impedance with high accuracy. In this paper, a determination method for the optimal load model parameters to estimate the measured harmonic impedance is proposed. The proposed method is based on Particle Swarm Optimization (PSO), which is one of optimization methods by using concept of swarm intelligence. In order to check the validity of the proposed method, the load model parameters estimated by the proposed method are evaluated using test data and filed data of Hokuriku electric power company.

Determination Method for Optimal Sending Voltage Profile in Distribution System with Distributed Generators

Yasuhiro Hayashi, Junya Matsuki, Ryoji Suzuki, Eiji Muto

IEEJ Transactions on Power and Energy査読有り125(9)p.846 - 8542005年09月-

詳細

概要:Sending voltage profile of distribution feeder is controlled by changing a tap of distribution transformer. In a distribution network with distributed generators, for reasons of effect of reversed flows from them and existence of a great number of sending voltage profile candidates, it is not easy to control sending voltage profile within the acceptable voltage limit. In this paper, in order to determine the optimal sending voltage profile of distribution transformer in a distribution network with distributed generators, the authors propose a new method to determine the optimal sending voltage profile so as to minimize total number of tap position's change per day under constraints of acceptable voltage limit. In the proposed method, after calculating acceptable range of three phase voltage of distribution feeder, the optimal profile of tap position within the calculated acceptable voltage range is determined among these candidates by using reduced ordered binary decision diagram (ROBDD) which is an efficient enumeration algorithm. In order to check the validity of the proposed method, numerical simulations are carried out for a distribution network model with a distributed generator.

Computation Method to Improve Three-phase Voltage Imbalance by Exchange of Single-phase Load Connection

Yasuhiro Hayashi, Junya Matsuki, Masayoshi Ohashi, Yasuyuki Tada

IEEJ Transactions on Power and Energy査読有り125(4)p.365 - 3722005年04月-

詳細

概要:Three-phase voltage imbalance occurs by variety of connecting points of single-phase loads. In order to improve three-phase voltage imbalance, connecting points of single-phases loads are exchanged. System planner has to decide how to exchange connection of single-phase loads with the minimum planning cost in order to improve three-phase voltage imbalance. However, since there are many patterns of connection for single-phase loads, it is not easy to determine the optimal connection pattern for single-phase loads with the minimum planning cost under the constraint for improving voltage imbalance. In this paper, authors propose a computational method to support the planner's decision of single-phase loads connection systematically. The proposed method, which is based on effective enumeration algorithm, can obtain the optimal single-phase loads connection pattern, which satisfies with constraint of voltage balance and has the minimum total number of single-phase loads exchanged from previous single-phase loads connection. In the proposed method, three-phase iterative load flow calculation is applied to calculate rate of three-phase voltage imbalance. Three-phase iterative load flow calculation has two simple procedures: (Procedure1) addition of load currents from terminal node of feeder to root one, and (Procedure2) subtraction of voltage drop from root node of feeder to terminal one. In order to check the validity of the proposed method, numerical results are shown for a distribution system model with DG.

Conceptual Study on Autonomy-Enhanced PV Clusters for Urban Community to Meet The Japanese PV2030

K.Kurokawa, S.Wakao, Y.Hayashi, I.Ishii, K.Otani, M.Yamaguchi, Y.Ono

EU-PVSEC2005年-

Power System Harmonic Analysis Using State-Estimation Method for Japanese Field Data

N.Kanao, M.Yamashita, H.Yanagida, M.Mizukami, Y.Hayashi, J.Matuki

IEEE Trans. on Power Delivery20(2)p.970 - 9772005年-

Loss Minimum Configuration of Distribution System Considering N-1 Security of Dispersed Generators

Y.Hayashi, J.Matuki

IEEE Transaction on Power Systems19(1)p.636 - 6422004年-

Overload Elimination of Secondary Power System by Load Transfer of Distribution System

H.Takano, Y.Hayashi, J.Matuki

ICEE2004/APCOT MNT2004OD7-2p.192 - 1952004年-

Distribution System Planning Evaluation Method Using Voronoi Diagram and Tabu Search

Yasuhiro Hayashi, Junya Matsuki, Masaki Nose, Masatomo Inui

IEEJ Transactions on Power and Energy査読有り123-B(10)p.1124 - 11322003年10月-

詳細

概要:Distribution planning must be carried out by considering (1) geographic information such as allocation of loads and feeders, (2) operational conditions such as line current capacity, voltage drop limit and distribution loss, and (3) facility cost and so on. In order to systematically support the above work by computational approach, optimization techniques are available. In this paper, a computational method to support distributional planning systematically is proposed by introducing (1) geographical optimization technique and (2) configuration optimization technique. The geographical optimization is to determine which of sectionalized lines should supply power to future appeared loads so as to maximize availability ratio of feeders. The configuration optimization is to determine states of sectionalizing switches (opened or closed) so as to minimize distribution loss under the constraints such as the line current capacity, voltage drop limit and radial structure. In the proposed method, after the geographical optimization is carried out to determine future section loads, operational conditions are evaluated by the configuration optimization. If the operational constraints are not satisfied, previously prepared expansion plan candidates are evaluated quantitatively, and then the best candidate is decided. Voronoi diagram is applied to realize the geographical optimization, and tabu search is used to accomplish the configuration optimization. In order to check the validity of the proposed method, numerical results are shown for a distribution system model.

Multi Objective Evaluation for Local Power System Configuration Based on Deterministic and Probabilistic Approaches

Yasuhiro Hayashi, Junya Matsuki, Kazuhisa Sato, Yuko Tokunoh

IEEJ Transactions on Power and Energy査読有り123(10)p.1172 - 11792003年10月-

詳細

概要:Local power systems (66kV) are served from the 275kV or 154kV substations. In order to maintain power supply reliability, the transmission lines are connected to several substations, and the operational configuration is radial. Since practical local power system has a number of transmission lines, many configuration candidates occur. It is expected to effectively evaluate these configuration candidates from various viewpoints such as reliability of power supply, transmission loss and so on. In this paper, the authors propose a multi objective evaluation method by using deterministic and probabilistic approaches for local power system configuration. In the proposed multi objective evaluation method, after selecting system configuration candidates which satisfy N-1 security by using an optimization method based on Boolean function, these candidates are evaluated from viewpoints of expected outage time, transmission loss and facility operation rate. In order to check the validity of the proposed method, numerical results are shown for a practical local system model with about 39 × 1027 configuration.

Application of Improved PSO to Power Flow Control by TCSC for Maximum Acceptance of Requested Wheeled Power

Yasuhiro Hayashi, Junya Matsuki, Genshin Kanai

IEEJ Transactions on Power and Energy査読有り123(10)p.1133 - 11412003年10月-

詳細

概要:Open access to electric power transmission networks has been carried out in order to foster generation competition and customer choice in the worldwide. When several PPSs request to simultaneously supply power to customers based on bilateral contracts, it is expected that transmission network accepts amounts of wheeled power requested by the PPSs as much as possible. It is possible to maximize total requested wheeled power by controlling power flow through transmission lines. It is well known that FACTS device is available to control line flow flexibly. In this paper, in order to maximize total wheeled power simultaneously requested by several PPSs, the authors propose an algorithm to determine the optimal reactance of TCSC (one of FACTS devices). The proposed algorithm is based on Particle Swarm Optimization (PSO), which is one of optimization methods based on swarm intelligence. In the proposed algorithm, PSO is improved to enhance ability of searching global minimum by giving different characteristic to behavior of each agent. In order to check the validity of the proposed method, numerical results are shown for 6 and IEEE 30 bus system models.

Computation Method for Simultaneous Transfer Capability Considering Wheeled Power by PPS

Yasuhiro Hayashi, Junya Matsuki, Takayuki Ikeda

IEEJ Transactions on Power and Energy査読有り122(12)p.1366 - 13752002年12月-

詳細

概要:Open access to electric power transmission networks has been carried out in order to foster generation competition and customer choice in the worldwide. Available transfer capability(ATC) is the largest additional amount of power above some base flow which can be transferred between two sets of buses under constraints such as voltage limit, overloads, stability and n-1 contingencies. Calculation of ATC is important to promote open access to electric power transmission networks. If there are several ATC between two sets of buses, simultaneous transfer capability(STC) of power transmission networks must be calculated. STC is defined as the ability of a transmission network to allow for the reliable movement of electric power from areas of supply to areas of demand. In this paper, a new algorithm to precisely calculate STC is proposed. The proposed method is based on linear programming(LP) based DC power flow and optimal power flow (OPF). Namely, LP base DC power flow is used to obtain the initial solution of STC, and then OPF using successive quadratic programming (SQP) is applied to obtain feasible solution of STC under the operational constraints such as balance of power supply and demand, voltage limit, overloads, generation limit, steady state stability and n-1 contingencies. Furthermore, if power wheeling transactions by several PPSs are simultaneously requested for the transmission network, it seems that the acceptable quantity for the requested wheeling power must be indicated to PPSs from a view point of the transmission network reliability. An algorithm to calculate the acceptable quantity for the requested wheeling power is also proposed by using STC computation. In order to check the validity of the proposed methods, numerical results are shown for 6 and IEEE 30 buses system models.

Determination Method for Loss-minimum Distribution System Configuration Considering Disconnection of Installed Dispersed Generators

Yasuhiro Hayashi, Junya Matsuki, Hirotaka Takano

IEEJ Transactions on Power and Energy122(12)p.1376 - 13832002年12月-

詳細

概要:Dispersed generators (DGs) such as fuel cells and solar cells etc. are going to be installed in demand side of power systems. The dispersed facilities can reduce distribution system loss by the appropriate allocation. However, when a DG which has large capacity is disconnected from the distribution network by a fault, violation of the operational constraints such as the line capacity and voltage drop may occur. From a view point of system reliability, robust system configuration for suddenly disconnecting DG from the distribution network must be determined, since system operators can not control DG connection to the network in the on-line. In this paper, the authors propose an algorithm to determine the loss-minimum configuration for a distribution system with DGs maintaining system reliability. Namely, in the proposed algorithm, when the loss-minimum configuration is determined under the line current capacity and voltage drop constraints, n-1 contingencies for DGs are also considered. In order to determine the loss-minimum configuration, tabu search added strategic oscillation is employed. Numerical simulations are carried out for a real scale system model with 118 sectionalizing switches (configuration candidates is 2118) in order to examine the validity of the proposed algorithm. Furthermore, performance of the proposed method is compared with a conventional metaheuristic method, which is Simulated Annealing (SA), through numerical simulations for the system model.

Calculation of the Loss-minimum Configuration in IEEJ Local Power System Model

Yasuhiro Hayashi, Junya Matsuki, Ikuo Kurihara

IEEJ Transactions on Power and Energy査読有り122(10)p.1082 - 10882002年10月-

詳細

概要:In Japan, local power systems (77kV) are served from the 275kV or 154kV substations. For enhancement of power supply reliability, the transmission lines are connected to several substations, and the operational configuration is radial. The local power system's configuration is determined by connecting and disconnecting transmission lines so as to keep the radial structure and satisfy the operational constraints. When a local power system has a number of transmission lines, many configuration candidates occurs. Recently, an IEEJ committee made a practical scale local system model (IEEJ Local System Model). Since IEEJ Local System Model has 76 transmission lines, the total number of configuration candidates is 276(=7.5×1022 approximately). In this paper, the authors try to strictly obtain the loss-minimum configuration under constraints such as substation capacity, line capacity and radial structure in IEEJ Local System Model. In order to obtain the optimal configuration, a new computation algorithm is proposed. In the proposed algorithm, the configuration determination problem is replaced as two combinatorial optimization problems based on the operational constraints (1)substation capacity, (2)line capacity and (3)radial structure). One combinatorial optimization problem (subprobleml) is to pick up all partial configurations satisfied with line capacity and radial structure constraints. The, other one (subproblem2) is to select the partial configurations so as to minimize total line loss under the substation capacity constraint. By using the enumeration method, subprobleml is solved. Subproblem2 is solved by using the reduced ordered binary decision diagram (ROBDD). Since the proposed method is based on enumeration and Boolean function, the optimality of obtained solution is guaranteed.

Determination of Loss-minimum Distribution System’s Configuration

Y.Hayashi, J.Matsuki

Proc. of International Conference on Electrical Engineering(ICEE), Cheju, Korea, 257-2612002年-

Determination of Optimal System Configuration for Japanese Power System Model

Y.Hayashi, J.Matsuki

Proc. of IEEE/PES Transmission and Distribution Conference and Exhibition 2002, Yokohama, Japan, 220-2252002年-

Experimental Study on the Unified Power Flow Controller

J.Matuki, Y.Hayashi, S.Kitajima

Proc. of International Conference on Electrical Engineering(ICEE), Cheju, Korea,2097-21022002年-

Thyristor Controlled Series Capacitor for Damping Power System Oscillations

J.Matsuki, Y.Hayashi, S.Hasegawa

Proc. of IASTED International Conference on Power and Energy Systems, Los Angeles, USA, 173-1772002年-

Determination Method for Optimal Secondary Power System Structure Using ROBDD

Yasuhiro Hayashi, Junya Matsuki, Koichi Nara

IEEJ Transactions on Power and Energy査読有り121(2)p.172 - 1782001年02月-

詳細

概要:Secondary power systems (66kV) with radial system structures are served from the 275kV or 154kV substations. For enhancement of power supply reliability, the transmission line is connected to another substation. However, when the radial power system has a number of connected feeders, the combinatorial number of possible system structures by switching CBs becomes very large. In this paper, a new solution method to determine the optimal secondary power system configuration is proposed. In the proposed method, the determination problem of the optimal system structure is treated as a minimum spanning tree problem with constraints, and then it is solved by using reduced ordered binary decision diagram (ROBDD). Since the proposed method is based on Boolean function, the optimality of obtained solution is guaranteed. In order to check the validity of the proposed method, numerical simulations are carried out for system models, and the results obtained by branch and bound method are compared with these of proposed method.

Optimal Allocation of Dispersed Generators for Loss Minimization

Koichi Nara, Yasuhiro Hayashi, Bin Deng, Kazushige Ikeda, Tomoo Ashizawa

IEEJ Transactions on Power and Energy査読有り120(5)p.672 - 6772000年05月-

詳細

概要:Dispersed generators (DG) such as fuel cells and solar cells etc. are going to be installed in demand side of power systems. The dispersed facilities can reduce distribution system loss by the appropriate allocation. So far, planning and operation of distribution system with the dispersed facilities have been discussed. In this paper, the authors discuss about how much the distribution system loss minimization can be reduced if DGs are optimally allocated at the demand side of the distribution system. In order to determine the optimal allocation and size of DG for minimizing the distribution system loss, an algorithm based on tabu search is employed. The proposed algorithm consists of the repetition of nested use of the tabu search algorithm. Namely, in the proposed algorithm, in one computational iteration, after the location of DG is temporarily determined by tabu search, the size of DG is also determined by tabu search so as to minimize the distribution system loss for the temporarily determined allocation. Numerical simulations are carried out for two system models in order to examine the validity of the algorithm.

Evaluation Method of Electrical Power Congestion Possibility in Open Market System

K.Nara, Y.Hayashi, C.Takahashi, T.Shirasaki, H.Sato

Proc. of the 5th International Conference on Probabilistic Safety Assessment and Management(PSAM5), 447-4522000年-

Loss Minimum Re-configuration of Distribution Systems with Dispersed Generators

K.Nara, Y.Hayashi, K.Ikeda, T.Ashizawa

Proc. of International Conference on Electrical Engineering(ICEE2K), 560-5632000年-

A Solution Algorithm Based on Multi-stage Tabu Search for Nested Combinatorial Optimization Problem

K.Nara, Y.Hayashi

Proc. of IEEE Systems, Man and Cybernetics Conference (SMC)p.551 - 5561999年-

Determination of Optimal Secondary Power System Configuration Using Reduced Ordered Binary Decision Diagram

Y.Hayashi, K.Nara

Proc. of International Conference on Electrical Engineering(ICEE), pp.127-130,1999年-

Discrete Optimal Power Flow by Tabu Search

K.Nara, Hua Hu, Y.Hayashi

Proc. of International Conference on Electrical Engineering(ICEE), pp.20-23,1999年-

Operational Simulation of Flexible, Reliable and Intelligent Electrical Energy Delivery System Using PSCAD/EMTDC

J.Hasegawa, H.Kita, Y.Mishima, K.Nara, Y.Hayashi

Proc. of American Power Conference, pp.518-5231999年-

Tabu Search Algorithm for Loss Minimum DG Allocation

K.Nara, Y.Hayashi

Proc. of IEEE International Conference on Intelligent Systems Applications to Power Systems Proceedings(ISAP), pp.180-1841999年-

An Approximate Solution Algorithm for Load Balancing of Distribution Systems

Keeyoung Nam, Yasuhiro Hayashi, Koichi Nara

IEEJ Transactions on Power and Energy査読有り118(9)p.983 - 9891998年09月-

詳細

概要:This paper proposes a new algorithm to obtain an approximate optimal solution for the load balancing of large-scale radial distribution system. Since the problem is formulated as a combinatorial optimization problem because of the discreteness of load section connection, it is difficult to solve a large-scale combinatorial optimization problem accurately within the reasonable computational time. So for, in order to find an approximate optimal solution quickly, the authors have published a solution method based on the network flow incremental algorithm. Although the incremental algorithm can find the optimal solution to the problem, the result is not always radial (feasible). So as to overcome this deficiency, in this paper, the authors propose a new algorithm that can find the load balanced radial distribution feeder configuration. The proposed algorithm picks up load by a unit of a section load. Therefore, the problem is elementarily a combinatorial optimization problem. However, to avoid the permutation, the algorithm employs a heuristic algorithm based on the mathematical concept of the optimality of the incremental algorithm. In picking up section load, the algorithm can take into account not only the current load balance but also the expected load which feeders should pick up afterward. To realize this algorithm, a combination of labels is introduced to each node. Through numerical examples, the validity of the proposed method is examined.

A New Algorithm for Distribution Feeder Expansion Planning in Urban Area

K.Nara, Y.Hayashi, S.Muto, K.Tuchida

Electric Power Systems Research, Vol.46, pp.185-193,1998年-

A Novel Automatic Contingency Selection Algorithm for Dynamic Security Assessment

D.Gan, Y.Hayashi, K.Nara, Z.Du, X.Wang, X.Wang

International Journal of Power and Energy System, Vol.18, No.3, pp.157-160,1998年-

Evaluation Method of Electrical Power Congestion Possibility in Open Market System

K.Nara, Y.Hayashi, C.Takahashi, T.Shirasaki, H.Sato

Proc. of the 5th International Conference on Probabilistic Safety Assessment and Management(PSAM5), 447-4521998年-

Scenario Selection by Genetic Algorithm for Evaluating Power Resource Planning

Y.Hayashi, K.Nara

International Journal of Power and Energy System, Vol.18, No.2, pp.142-146,1998年-

Determination of Newly Installed Feeder Route Considering Use of Existing Feeder

Koichi Nara, Yasuhiro Hayashi, Yukihiro Yamafuji, Hideo Tanaka, Jun Hagihara, Shoichi Muto, Kotaro Tuchida, Masahiro Sakuraoka

IEEJ Transactions on Power and Energy査読有り117(6)p.798 - 8051997年06月-

詳細

概要:In planning a distribution system for urban area, when a feeder is newly installed, the route of the feeder must be determined among many candidates, considering investment cost and constraints. However, it is difficult for planners to find the optimal route of the newly installed feeder. Because too many candidates of route exist which can be constructed along the road on service area of the power company. It must be considered whether the end part of an existing feeder can be used as apart of newly installed feeder within specified loaded value. In this paper, in order to support planners' decision for selecting optimal route of newly installed feeders, the authors have formulated the problem mathematically, and propose a new solution algorithm to find the optimal route by referring Dijkstra Method. Through numerical examples, authors demonstrate the validity of the proposed method.

Development of Negotiation Expert System for Subtransmission System Planning

Y. Aihara, Y. Hayashi, T. Terashima, I. Takemoto, S.Iwamoto

査読有り115(7)p.778 - 7861995年07月-

詳細

概要:Recently the task of planning in power systems is becoming a very complicated process for utility planners. This kind of planning has a lot of objectives to accomplish. In this paper we employ Negotiation Algorithm, which was proposed by the group of Chen-Ching Liu, for subtransmission power system planning to create a plan having many objectives. First, the Goal-Decision-Network(GDN) is constructed to model this planning problem, and Negotiation Algorithm is applied to utilize both subtrasmission system planning GDN, which attempts to capture its knowledge, and negotiation operators, which search for the most feasible and promising decisions in this planning GDN. Finally the negotiation expert system is demonstrated for the subtransmission system planning using a real system.

Application of Improved Hopfield Model to Voltage Control Problem

Yasuhiro Hayashi, Shinichi Iwamoto

IEEJ Transactions on Power and Energy査読有り112(8)p.685 - 6921992年08月-

詳細

概要:The voltage control calculation is the combinatorial optimization problem, and it has been difficult to solve this type of problem quickly with the conventional digital computer. However according to the modelling of excellent parallel processing ability of neurons, it has become possible to carry out the optimization with the Hopfield neural network model. In this paper, in order to solve the voltage control problem we propose an improved Hopfield model which has an individual input-output function for an individual neuron to achieve a drastic improvement in the calculation time.

Introduction of Neural Network Theory to Load Flow Problem

Yasuhiro Hayashi, Shinichi Iwamoto

IEEJ Transactions on Power and Energy査読有り111(7)p.713 - 7221991年07月-

詳細

概要:In recent years, according to the modelling of excellent information processing ability of neurons, it has become possible to carry out pattern recognitions or optimizations with the neural network theory. In this paper, we show how to introduce the neural network theory to the load-flow calculation of rectangular coordinate. A problem which input-output functions have for neural network applications is pointed out, and effects of changes in load patterns and system size are discussed in terms of the optimal multiplier. Results of simulations are shown with the convergence characteristics.

Distribution network verification for secure restoration by enumerating all critical failures

Takeru Inoue, Norihito Yasuda, Shunsuke Kawano, Yuji Takenobu, Shin-ichi Minato, Yasuhiro Hayashi

IEEE Transactions on Smart Grid査読有り6(2)p.843 - 852

DOI

詳細

概要:If several feeders are interrupted in a severe accident, distribution networks should be restored by reconfiguring switches automatically with smart grid technologies. Although there have been several restoration algorithms developed to find the new network configuration, they might fail to restore the whole network if the network were critically damaged. The network's design has to guarantee that it is restorable under any possible failure for secure power delivery, but it is a computationally hard task to examine all possible failures in a large-scale network with complex electrical constraints. This paper proposes a novel method to find all the critical (unrestorable) line cuts with great efficiency to verify the network design. The proposed method first runs a fast screening algorithm based on hitting set enumeration; the algorithm selects suspicious cuts without naively examining all possible cuts. Next, unrestorable cuts are identified from the suspicious ones with another algorithm, which strictly tests the restorability of the network under each suspicious cut without redundantly repeating heavy power flow calculations. Thorough experiments on two distribution networks reveal that the proposed method can find thousands of unrestorable cuts from the trillions of possible cuts in a large 432-Bus network with no significant false negatives.

Online Optimization Method for Operation of Generators in a Micro Grid

Yasuhiro Hayashi, Hideki Miyamoto, Junya Matsuki, Toshio Iizuka, Hitoshi Azuma

IEEJ Transactions on Power and Energy査読有り128(2)p.388 - 3962008年-

詳細

概要:Recently a lot of studies and developments about distributed generator such as photovoltaic generation system, wind turbine generation system and fuel cell have been performed under the background of the global environment issues and deregulation of the electricity market, and the technique of these distributed generators have progressed. Especially, micro grid which consists of several distributed generators, loads and storage battery is expected as one of the new operation system of distributed generator. However, since precipitous load fluctuation occurs in micro grid for the reason of its smaller capacity compared with conventional power system, high-accuracy load forecasting and control scheme to balance of supply and demand are needed. Namely, it is necessary to improve the precision of operation in micro grid by observing load fluctuation and correcting start-stop schedule and output of generators online. But it is not easy to determine the operation schedule of each generator in short time, because the problem to determine start-up, shut-down and output of each generator in micro grid is a mixed integer programming problem. In this paper, the authors propose an online optimization method for the optimal operation schedule of generators in micro grid. The proposed method is based on enumeration method and particle swarm optimization (PSO). In the proposed method, after picking up all unit commitment patterns of each generators satisfied with minimum up time and minimum down time constraint by using enumeration method, optimal schedule and output of generators are determined under the other operational constraints by using PSO. Numerical simulation is carried out for a micro grid model with five generators and photovoltaic generation system in order to examine the validity of the proposed method.

ゼロエネルギーハウスの設計・建設と四季の計測

Natsuko Nagasawa

日本建築学会技術報告集22(52)2016年10月-

Distributed Energy Management for Comprehensive Utilization of Residential Photovoltaic Outputs

Yu Fujimoto Hiroshi Kikusato ; Shinya Yoshizawa ; Shunsuke Kawano ; Akira Yoshida ; Shinji Wakao ; Noboru Murata ; Yoshiharu Amano ; Shin-ichi Tanabe ; Yasuhiro Hayashi

IEEE Transactions on Smart Grid査読有りPP(99)2016年01月-

詳細

概要:The introduction of photovoltaic power systems is being significantly promoted. This paper proposes the implementation of a distributed energy management framework linking demand-side management systems and supply-side management system under the given time-of-use pricing program for efficient utilization of photovoltaic power outputs; each system implements a consistent management flow composed of forecasting, operation planning, and control steps. In our framework, demandside systems distributed in the electric distribution network manage individual energy consumption to reduce the residential operating cost by utilizing the residential photovoltaic power system and controllable energy appliances so as not to inconvenience residents. On the other hand, the supply-side system utilizes photovoltaic power maximally while maintaining the quality of electric power. The effectiveness of the proposed framework is evaluated on the basis of an actual Japanese distribution network simulation model from both the supply-side and demand-side viewpoints

Coordinated Voltage Control of Load Tap Changers in Distriution Networks with Photovoltaic System

Hiroshi Kikusato, Masaya Kobayashi, Jun Yoshinaga, Yu Fujimoto, Yasuhiro Hayashi

IEEE PES Innovative Smart Grid Technologies, Europep.1 - 62016年10月-

link

詳細

掲載種別:研究論文(国際会議プロシーディングス)

概要:Maintaining voltage levels in distribution networks (DNs) with photovoltaic systems (PVs) is a complicated task for conventional voltage control schemes that only use a load ratio control transformer (LRT) and step voltage regulators (SVRs), because of local voltage fluctuation caused by the introduction of PVs. This paper proposes a coordinated voltage control scheme consisting of multiple kinds of load tap changers (LTCs). The proposed scheme determines the location at which to introduce low-voltage regulators (LVRs) and provides control parameters for the LTCs by considering the behavior of the other LTCs. We carried out numerical simulations using a DN model including PVs to verify the validity of the proposed scheme. The results specify the characteristics of the voltage deviation that cannot be prevented by a conventional voltage control scheme, and the proposed scheme significantly reduces such local voltage deviation.

Optimal coordination of voltage controllable devices in distribution systems using power-based models and quadratic programming

Tu Van Dao, Surachai Chaitusaney, Yasuhiro Hayashi, Hideo Ishii

IEEJ Transactions on Electrical and Electronic Engineering査読有り12p.S54 - S642017年06月-2017年06月 

DOIlinkScopus

詳細

ISSN:19314973

概要:The incorporation of photovoltaic (PV) inverters makes the management of voltage difficult for power system operators. One solution is to consider these inverter-based devices as controllable reactive power (VAr) sources and to coordinate them with other voltage regulating devices in the distribution system. This paper proposes some acceptable approximations to quickly formulate and solve a mixed-integer quadratic programming problem to periodically determine the optimal voltage coordination of a load tap changer, voltage regulators, capacitor banks, and PVs on a smart grid platform. The solution to the optimization problem is aided by an iteration-based algorithm. By using the MATLAB software to carry out the simulation and computation, the method is well verified by comparing its generated result with a trustworthy solution obtained from examining all possible coordinating combinations of voltage regulating devices and PVs in a modified IEEE 34-bus system. The effectiveness and features of the method are clearly illustrated on that test system by considering a time-varying load and PV generation. The obtained results demonstrate the practical application of this work to medium-voltage systems. © 2017 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

Control methods for an energy storage system when wind power output deviates from grid code

Masakazu Ito, Yu Fujimoto, Masataka Mitsuoka, Hideo Ishii and Yasuhiro Hayashi

JOURNAL OF INTERNATIONAL COUNCIL ON ELECTRICAL ENGINEERING査読有り7(1)p.159 - 1652017年06月-2017年06月 

DOIlink

詳細

概要:Because of the rapid growth of wind power, an electric grid company set the maximum change rate in a time window to share its fluctuation; this set maximum change rate in a time window is called the grid code. Large fluctuations of wind power may cause deviation from the grid code, but no studies discuss how to control an energy storage system (ESS) so that it quickly goes back to satisfying the grid code. The authors proposed three control methods for an ESS when the wind power output deviates; they are (1) ‘restart’, (2) ‘continuance without operation’, and (3) ‘continuance with operation’. One year numerical simulations with two types of grid codes and two wind power output data have been performed to evaluate the methods. From the studies, control method (3) is found to be the best control method for an ESS to minimize capacity when the wind power output deviates from the grid code, and is verified by the numerical simulations. These results help to answer questions on how to reduce deviation time and ESS capacity using the control method when the wind power output deviates from the grid code.

書籍等出版物

スマートグリッド学—戦略・技術・方法論—

林泰弘(編著),岡本浩,林秀樹,濱坂隆,伊奈友子,坂本紀代美

日本電気協会新聞部2010年 12月-

詳細

ISBN:978-4-902553-99-4

スマートグリッドの構成技術と標準化

横山明彦,林泰弘,坂東茂,林秀樹,新井正伸,姉川尚史,合田忠弘,浅野浩志,今井伸一,木槻純一,山田竜也,弥栄邦俊

日本規格協会2010年 06月-

詳細

ISBN:978-4-542-30183-2

電力系統の最適潮流計算(OPF,Optimal Power Flow)

関根泰次,横山明彦,安田恵一郎,林泰弘,田辺隆也,岡本浩,多田泰之

日本電気協会2002年-

“Demand-Side Response/Home Energy Management”, Smart Grid Handbook

Hideo Ishii, Wataru Hirohashi, Masataka Mitsuoka, Yasuhiro Hayashi(共著)

John Wiley & Sons, Ltd.2016年 06月-

詳細

事典・辞書総ページ数:1900担当ページ数:1235-1252ISBN:9781118755488

講演・口頭発表等

Improvement of Prediction Interval Estimation Algorithm with Just-In-Time Modeling for PV System Operation

Tomohide Yamazaki, Shinji Wakao, Yu Fujimoto and Yasuhiro Hayashi

The 42nd IEEE Photovoltaic Specialists Conference2015年06月

詳細

開催地:New Orleans, USA

Dynamic voltage regulator operation with demand side management for voltage control

A.L.M. Mufaris, J. Baba, S. Yoshizawa, Y. Hayashi

2015 IEEE Eindhoven PowerTech2015年06月

詳細

開催地:Eindhoven, Netherland

Islanding Operation Methods Integrated with Multiple Supplies and HEMS

Jun Yoshinaga, Wataru Hirohasi, Yasuhiro Hayashi, Yashito Isoe, Jiro Miyake, Shizuo Tsuchiya

2015 International Symposium on Smart Electric Distribution Systems and Technologies(EDST 2015) CIGRE SC C6 Colloquim Vienna2015年09月

詳細

開催地:Vienna

Multiple Scenario Forecast for Residential Energy Demands

Yu Fujimoto

2015 JST-NSF-DFG-RCN Workshop on Distributed Energy Management Systems2015年04月

詳細

開催地:Arlington, VA, USA

ISLANDING OPERATION TECHNOLOGY INTEGRATED WITH MULTIPLE POWER SUPPLIES

Jun Yoshinaga, Wataru Hirohashi, Yasuhito Isoe, Yasuhiro Hayashi, Jiro Miyake and Shizuo Tsuchiya

CIRED 23rd International Conference on Electricity Distribution2015年06月

詳細

開催地:Lyon, France

Determination of Dynamic Line Drop Compensation Parameters of Voltage Regulators for Voltage Rise Mitigation

A.L.M. Mufaris, J. Baba, S. Yoshizawa, Y. Hayashi

ICCEP2015年06月

詳細

開催地:Italy

Method for Determining LDC Parameters of OLTC and Multiple SVRs in Distribution System by Using Database

Shunsuke Kawano,Shinya Yoshizawa, Yu Fujimoto and Yasuhiro Hayashi

IYCE(International Youth Conference on Energy)2015年05月

センサ開閉器情報に基づいた集中型電圧制御方式の計測周期・不感帯整定に関する基礎検討

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

集中型電圧制御におけるLRTとの協調制御を考慮したSVRの最適配置決定手法

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

再生可能エネルギー電源の出力変動と分布を考慮した周波数変動調整用発電機の最適出力配分

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

アクティブフィルタ機能を有する単相PCSによる系統の高調波分布の解析

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

配電ネットワークの事故復旧支援手法の拡張

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

LRTとPVシステム群の力率制御による協調型電圧制御法

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

HEMS住宅を活用した系統電圧管理のPV導入限界量の面からみた評価

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

PVシステム群におけるオンオフ制御と蓄電池制御の協調によるインバータ容量削減効果

電気学会全国大会2011年03月16日

詳細

口頭発表(一般)

分散型電源の連系線電圧・電流から算出する測距インピーダンスによる故障点標定

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

PCSによる系統の電圧不平衡改善および高調波抑制

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

センサ開閉器情報を利用した複数台PCSによる配電ネットワークにおける総合電圧ひずみ率抑制手法」

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

LRTと太陽光発電システム群の力率制御による協調型電圧制御法

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

PV群集中管理を目的としたPV導入エリアの決定に関する研究

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

スマートハウスを活用した配電系統における負荷管理手法の評価

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

単相連系PVの導入拡大が配電系統の電力品質に与える影響評価

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

太陽光発電大量導入時の電圧上昇と電圧不平衡率の改善を目的とした燃料電池の無効電力制御に関する研究

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

PVの大量導入における複数台SVCの最適設置箇所に関する研究

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

家庭用太陽光発電システム多数台連系時の出力抑制回避の最大化を目的とした電圧上昇抑制動作パラメータの整定値の評価

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

PSOによるパラメータ推定を適用した動的負荷のモデル化

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

再生可能エネルギーによる周波数変動の送電線混雑管理を目的とした発電機の出力配分

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

分散型電源の導入拡大に対応した配電系統さいてき厚生に関する基礎研究

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

センサ開閉器区間情報を用いた電圧推定に基づくLRTとSVRによる複数フィーダの集中型電圧制御手法

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

PVが導入された配電系統のパンク事故復旧時における電圧逸脱地域最小化手法

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

PV大量連系配電系統における不感帯可変SVCによる電圧制御

平成22年電気学会電力技術・電力系統技術合同研究会2010年09月28日

詳細

口頭発表(一般)

並列計算環境による配電系統構成決定時間短縮効果の検討

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

系統電圧維持を目的としたPV システム出力平滑化のための蓄電池容量に関する研究

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

再生可能エネルギー大量導入による周波数変動に対応した発電機出力の最適化に関する基礎検討

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

PV 出力変動補償を目的としたPV 群とGE の協調制御に関する基礎研究

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

センサ開閉器計測情報に基づいた複数フィーダの電圧推定・制御手法

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

「PV の連系容量と連系地点に応じたSVC の最適設置箇所に関する研究

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

「複数台SVC による系統電圧制御効果の評価

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

PV システム群のオンオフ制御による蓄電池容量削減効果と利用率の評価

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

PV 大量導入に対応した送電系統遮断器と配電系統開閉器の協調制御による送配電損失の最小化手法

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

ポスター発表

燃料電池の無効電力制御を用いた配電系統の電圧制御と電圧不平衡抑制の効果に関する基礎研究

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

系統電圧維持を目的とした太陽光発電システム群の力率制御手法」

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

開閉器情報を利用したPCSによる複数フィーダでの総合電圧ひずみ率抑制手法に関する研究

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

事故復旧制御における分散型電源の再連系の利用

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

太陽光発電が大量導入された配電系統における負荷管理手法

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

系統連系されたインバータ型分散型電源への距離リレー適用に関する一考察

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

PV 出力最大化と配電系統電圧適正化を目的としたヒートポンプ給湯器と電気自動車用充電器の協調制御手法

平成22年電気学会電力・エネルギー部門大会2010年09月01日

詳細

口頭発表(一般)

ループ型配電系統に連系された分散型電源の電圧・電流から算出する測距インピーダンス

電気関係学会東海支部連合大会2010年08月30日

詳細

口頭発表(一般)

分散型電源の連系線電圧・電流から算出する測距インピーダンスと系統構成との関係

電気設備学会全国大会2010年08月26日

詳細

口頭発表(一般)

PV出力最大化と配電系統電圧適正化を目的としたヒートポンプ給湯器と電気自動車用充電器の協調運用決定手法の基礎検討

平成22年電気学会電力技術/電力系統技術/半導体電力変換合同研究会2010年03月

詳細

口頭発表(一般)

PV群のオンオフ制御台数とならし効果による出力安定化の検証

平成22年電気学会電力技術/電力系統技術/半導体電力変換合同研究会2010年03月

詳細

口頭発表(一般)

蓄電池容量最小化と適正電圧維持を目的とした風力発電出力変動平滑化

平成22年電気学会電力技術/電力系統技術/半導体電力変換合同研究会2010年03月

詳細

口頭発表(一般)

LRTとの制御分担を考慮したSVCの瞬時電圧制御法およびSVCの定格容量と制御パラメータの決定手法

平成22年電気学会電力技術/電力系統技術/半導体電力変換合同研究会2010年03月

詳細

口頭発表(一般)

センサ開閉器からの計測情報を利用した配電系統の集中型(LRT・SVR)電圧制御手法

平成22年電気学会電力技術/電力系統技術/半導体電力変換合同研究会2010年03月

詳細

口頭発表(一般)

事故区間分離を考慮したループ配電系統の電圧制御に関する検討

平成22年電気学会電力技術/電力系統技術/半導体電力変換合同研究会2010年03月

詳細

口頭発表(一般)

再生可能エネルギー電源が連系された次世代ループ配電系統の電圧維持能力の検証

平成22年電気学会全国大会2010年03月

詳細

口頭発表(一般)

分散型電源連系インバータによる系統規模での総合電圧ひずみ率抑制方法に関する研究

平成22年電気学会全国大会2010年03月

詳細

口頭発表(一般)

太陽光発電システム群の力率制御手法の実験による検証

平成22年電気学会全国大会2010年03月

詳細

口頭発表(一般)

PVが大量導入された配電系統におけるHP給湯器とEV充電器の運用形態に関する評価

平成22年電気学会全国大会2010年03月

詳細

口頭発表(一般)

大規模PV導入が配電系統に及ぼす影響の評価

平成22年電気学会全国大会2010年03月

詳細

口頭発表(一般)

配電系統に連系されたインバータ型分散型電源の短絡電流最大値と系統構成との関係

平成22年電気学会全国大会2010年03月

詳細

口頭発表(一般)

再生可能エネルギーとの調和を目指した先進グリッド技術

電気四学会関西支部専門講習会2010年02月

詳細

口頭発表(一般)

PV導入による電力ロス削減効果に関する基礎検討

電気学会電力系統技術研究会2010年01月

詳細

口頭発表(一般)

太陽光発電設置住宅におけるヒートポンプ給湯機と電気自動車用充電器の協調運用スケジュール決定手法

電気学会電力系統技術研究会2010年01月

詳細

口頭発表(一般)

センサ開閉器情報を利用した分散型電源連系インバータによる系統の総合電圧ひずみ率抑制方法に関する基礎研究

電気学会電力系統技術研究会2010年01月

詳細

口頭発表(一般)

太陽光発電システム群の多目的力率制御手法

電気学会電力系統技術研究会2010年01月

詳細

口頭発表(一般)

PV導入形態が配電系統に及ぼす影響に関する基礎検討

PSE-10-007 (2010)

詳細

口頭発表(一般)

太陽光発電設置住宅におけるヒートポンプ給湯機と電気自動車用充電器の協調制御手法

PSE-10-005 (2010)

詳細

口頭発表(一般)

センサ開閉器情報を利用した分散型電源連系インバータによる系統の総合電圧ひずみ率抑制方法に関する基礎研究

PSE-10-003(2010)

詳細

口頭発表(一般)

太陽光発電システム群の多目的力率制御手法

PSE-10-001(2010)

詳細

口頭発表(一般)

分散型電源系統連系インバータのPQ 制御による系統の電圧ひずみ率抑制方法の検討

P24(2009)

詳細

口頭発表(一般)

ANSWER による太陽光発電システム群の力率制御手法の検証実験

P16(2009)

詳細

口頭発表(一般)

配電系統に設置される複数台SVC の協調整定に関する検討

P15(2009)

詳細

口頭発表(一般)

並列計算環境下における開閉器制御手法の高速化

6-027(2009)

詳細

口頭発表(一般)

階層型マイクログリッドにおけるGEのオンライン運用の一次エネルギー消費量とCO2 排出量の削減効果

6-318(2009)

詳細

口頭発表(一般)

オンオフ制御による太陽光発電システム群の制御遅れ時間に対する出力目標値設定誤差の評価

6-279(2009)

詳細

口頭発表(一般)

タップ切替回数と電圧プロファイルに基づいた電圧制御器(LRT, SVR)の不感帯幅の決定

6-267(2009)

LRT とSTATCOM による協調電圧制御のANSWER を用いた検証実験

6-261(2009)

詳細

口頭発表(一般)

動的負荷特性の同定のための誘導機モデルのパラメータ推定

6-154

詳細

口頭発表(一般)

模擬実験装置を用いた損失最小化制御手法の検証

6-021(2009)

詳細

口頭発表(一般)

太陽光発電システム群の多目的力率制御のANSWER による検証実験

6-019(2009)

詳細

口頭発表(一般)

配電系統の電圧推定手法を適用した送出し電圧制御の実験的検証

6-015 (2009)

詳細

口頭発表(一般)

PV 群のオンオフ制御台数による出力安定化効果の評価

PE-09-180/PSE-09-188(2009)

詳細

口頭発表(一般)

PV 群のオンオフ制御による蓄電池容量削減効果の検証

PE-09-179/PSE-09-187(2009)

詳細

口頭発表(一般)

配電損失削減とCO2 排出削減に貢献可能な自然エネルギー利用型分散型電源出力範囲の評価

PE-09-177/PSE-09-185(2009)

詳細

口頭発表(一般)

太陽光発電設置住宅におけるヒートポンプ給湯機と電気自動車充電器の運転スケジュール決定手法

PE-09-171/PSE-09-179(2009)

詳細

口頭発表(一般)

太陽光発電システム群の総有効電力出力最大化を目的とした力率制御手法

PE-09-170/PSE-09-178(2009)

詳細

口頭発表(一般)

蓄電池容量最小化を目的とした風力発電出力の最適平滑化時定数の決定

PE-09-168/PSE-09-176(2009)

詳細

口頭発表(一般)

自然エネルギー利用型分散型電源と配電ネットワークとの協調運用形態の検証実験

PE-09-166/PSE-09-174(2009)

詳細

口頭発表(一般)

階層型マイクログリッドの一次エネルギー消費量およびCO2 排出量削減効果の季節別検証

PE-09-149/PSE-09-157(2009)

詳細

口頭発表(一般)

分散型電源連系インバータのPQ 制御及びAF 動作による系統の電圧ひずみ率抑制方法の検討

PE-09-117/PSE-09-125(2009)

詳細

口頭発表(一般)

再生可能エネルギー源が連系されたループ配電系統の電圧制御に関する検討

PE-09-94/PSE-09-102C

詳細

口頭発表(一般)

センサ開閉器から得られる計測情報を活用した配電系統の集中型(LRT・SVR)電圧制御手法の実験的検証

PE-09-92/PSE-09-100(2009)

詳細

口頭発表(一般)

並列計算技術の開閉器制御手法への適用に関する基礎検討

PE-09-83/PSE-09-91(2009)

詳細

口頭発表(一般)

配電系統におけるSVC の定格容量と制御パラメータ決定手法

PE-09-90/PSE-09-98(2009)

詳細

口頭発表(一般)

燃料電池設置型集合住宅における最適熱電併給運用

平成20年 電気学会全国大会

詳細

口頭発表(一般)

定格容量を考慮したSVC の制御パラメータ決定手法

平成20年 電気学会全国大会

詳細

口頭発表(一般)

分散型電源の連系課題解決支援実験システム(ANSWER)の構築

平成20年 電気学会全国大会

詳細

口頭発表(一般)

PV システム群のオン/オフ制御による出力安定化

平成20年 電気学会全国大会

詳細

口頭発表(一般)

適正電圧維持を目的とした風力出力変動平滑化制御の最適時定数の決定に関する基礎実験

平成20年 電気学会全国大会

詳細

口頭発表(一般)

階層型マイクログリッドにおける熱電併給運用の評価

平成20年 電気学会全国大会

詳細

口頭発表(一般)

配電系統模擬実験設備を用いた分散型電源連系が系統の高調波電流に及ぼす影響の解析

平成20年 電気学会全国大会

詳細

口頭発表(一般)

配電系統におけるLRTとSVRの統合整定手法の検討

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

配電損失とバンク効率に対するパレート最適解を用いた配電ネットワーク構成の多目的最適化

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

配電損失最小化に貢献可能な分散型電源出力範囲の算定

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

実測データを用いた配電用変圧器の最適LDC整定値の決定

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

TCSC点弧角自動制御モデルを用いた電力系統の動揺抑制効果のためのディジタル制御に関する研究

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

サイリスタ制御直列コンデンサによる不安定現象に関する研究

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

同期発電機内部の空隙磁束を用いた送電線事故判定

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

配電系統におけるLRTとSVRの統合整定手法の提案

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

電力品質に対するパレート最適解を用いた配電ネットワーク構成の多目的最適化

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

配電損失最小構成の年間変更頻度に対する損失削減効果の評価

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

配電系統における風力発電システムの連系可能最大出力の算出手法に関する検討

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

インバータ利用分散型電源が連系された配電系統模擬実験設備での高調波解析

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

キャンパス配電系統における電力品質の年間変化に関する検討

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

系統構成を考慮した分散型電源連系配電ネットワークにおけるアクティブフィルタの最適設置箇所に関する研究

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

適正電圧維持を目的とした風力出力変動平滑化制御の最適時定数の配電系統模擬実験による決定

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

分散型電源と配電ネットワークとの協調運用形態の検証実験

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

配電ネットワーク模擬実験設備を用いた分散型電源多数台連系前後での配電ネットワーク構成の多面的評価

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

階層型マイクログリッドの最適運用に関する基礎研究

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

燃料電池設置型集合住宅における最適な熱電併給運用の決定手法

平成19年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

集合住宅における燃料電池の導入についての検討

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

燃料電池設置型集合住宅における最適運用計画の季節別比較

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

DG多数台連系前後での配電ネットワーク構成候補の評価実験

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

分散型電源連系配電ネットワークにおけるアクティブフィルタの最適設置箇所に関する研究

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

分散型電源と配電ネットワークとの協調運用に関する研究

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

配電系統模擬実験による風力出力変動平滑化制御の最適時定数の決定

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

配電系統模擬実験設備を用いた分散型電源連系パターンの違いによる高調波解析

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

階層型マイクログリッドの最適熱電併給に関する基礎検討

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

キャンパス配電系統における電力需要の年変化に関する一考察

平成19年度電気関係学会北陸支部連合大会

詳細

口頭発表(一般)

パレート最適解を用いた配電ネットワーク構成の多目的最適化手法

平成19年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

配電系統における変電所LDCの最適整定値決定手法の検討

平成19年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

分散型電源が連系された配電系統模擬実験設備での高調波解析

平成19年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

集合住宅における燃料電池の最適運用計画決定手法

平成19年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

分散型電源が連系された配電ネットワークにおけるアクティブフィルタの最適設置箇所に関する研究

平成19年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

配電ネットワーク模擬実験による分散型電源と配電ネットワークとの協調運用形態の検証

平成19年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

マイクログリッドにおけるオンライン電源運用最適化手法の妥当性の検証

平成19年 電気学会全国大会

詳細

口頭発表(一般)

センサ内蔵開閉器からの系統情報に基づいた変電所LDCの最適整定値の決定手法の開発

平成19年 電気学会全国大会

詳細

口頭発表(一般)

分散型電源の連系可能最大出力の観点から見た送出し電圧制御方式の比較

平成19年 電気学会全国大会

詳細

口頭発表(一般)

配電損失最小化による年間CO2排出削減量の簡易評価手法

平成19年 電気学会全国大会

詳細

口頭発表(一般)

配電系統模擬実験による分散型電源と配電系統との協調運用形態の検証

平成18年度 電気学会 電力技術・電力系統技術・半導体電力変換技術合同研究会

詳細

口頭発表(一般)

配電ネットワーク模擬実験設備を用いた分散型電源協調型の配電ネットワーク制御方式の検証

平成19年 電気学会全国大会

詳細

口頭発表(一般)

キャンパス配電系統における高調波インピーダンスに関する研究

平成19年 電気学会全国大会

詳細

口頭発表(一般)

キャンパス配電系統における電力品質の季節変化

平成19年 電気学会全国大会

詳細

口頭発表(一般)

配電ネットワークにおけるアクティブフィルタの最適設置箇所に関する基礎研究

平成19年 電気学会全国大会

詳細

口頭発表(一般)

燃料電池設置型集合住宅での戸別間電力融通による最適な熱電併給運用

平成19年 電気学会全国大会

詳細

口頭発表(一般)

配電系統に連系される風力発電機の連系可能最大出力の評価

平成18年度 電気学会 電力系統技術研究会

詳細

口頭発表(一般)

分散型電源の連系が配電ネットワークに及ぼす影響の面的解析

平成18年度 電気学会 電力系統技術研究会

詳細

口頭発表(一般)

競争的環境下でのTCSCによる運用形態

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

同期発電機の制動巻線による分散型電源連系時の三相不平衡の改善

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

TCSCによる系統安定度向上に関する実験と考察

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

サイリスタ制御直列コンデンサにおける不安定現象の解析

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

無負荷変圧器における過電圧の抑制に関する実験と考察

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

分散型電源の連系を考慮した配電系統のバンク事故復旧手法

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

数理的最適性が保証された3分割3連系配電損失最小構成の決定手法

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

ループ状配電系統への三相繰返潮流計算手法の適用に関する基礎検討

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

3分割3連系配電ネットワーク構成における電圧不平衡率の評価

平成17年電気学会電力技術・電力系統技術合同研究会

詳細

口頭発表(一般)

3分割3連系配電ネットワークにおける配電損失最小構成決定手法

平成17年電気学会電力・エネルギー部門大会

詳細

口頭発表(一般)

連系要件の違いによる蓄エネルギー装置の所用出力・時間容量の検討

伊藤雅一、藤本悠、光岡正隆、石井英雄、林泰弘

平成27年電気学会電力・エネルギー部門大会2015年08月

詳細

開催地:名古屋

広域運用系統における風力発電出力変動補償を目的とした周波数調整用発電機の最適出力配分候補の導出

池田 欧世、 林 泰弘、田中 毅

平成27年電気学会電力・エネルギー部門大会2015年08月

詳細

開催地:名古屋

電圧感度推定を用いた次世代集中制御手法の評価

高橋 諒、高橋 尚之、林 泰弘、浅野 浩志

平成27年電気学会電力・エネルギー部門大会2015年08月

詳細

開催地:名古屋

電力予測精度とHEMS/Grid EMS協調効果の関係の評価

森 皓平、 喜久里浩之、芳澤 信哉、藤本 悠、若尾 真治、林 泰弘,、川島 明彦,、稲垣 伸吉、鈴木 達也

平成27年電気学会電力・エネルギー部門大会2015年08月

詳細

開催地:名古屋

網羅的な実行可能構成の列挙に基づく年間配電エネルギー損失最小化

安田 宜仁、竹延 祐二、河野 俊介、 林泰弘、 湊 真一

平成27年電気学会電力・エネルギー部門大会2015年08月

詳細

開催地:名古屋 名城大学

系統構成を考慮した分散型電源の連系可能最大容量の決定手段

竹延祐二、安田宜仁、河野俊介、湊真一、林泰弘

平成27年電気学会電力・エネルギー部門大会2015年08月

詳細

開催地:名古屋 名城大学

太陽光発電システム向けPCSの地域別容量の検討

伊藤雅一、林泰弘、黒川浩助

平成27年度日本太陽エネルギー学会・日本風力エネルギー学会 合同研究発表会2001年51月

詳細

開催地:宮崎市

Distribution automation system for service restoration involving simultaneous disconnection and reconnection of distributed generators

Shunsuke Kawano, Yu Fujimoto,Shinji Wakao, Yasuhiro Hayashi, Hideaki Takenaka,Hitoshi Irie,Takashi Y. Nakajima

2015 IEEE Eindhoven PowerTech2015年06月

詳細

開催地:Eindhoven, Netherland

Development of Methodologies for Collaborative Energy Management System Using Simulation Model and Distribution NW Simulator

Yasuhiro Hayashi

2015 JST-NSF-DFG-RCN Workshop on Distributed Energy Management Systems2015年04月

詳細

開催地:Arlington, VA, USA

Basic Study of Grid-connected Battery Energy Storage System Capacity Determination for Load Leveling and Voltage Control

AKAGI, Satoru, YOSHIZAWA, Shinya, YOSHINAGA, Jun, ITO, Masakazu, FUJIMOTO, Yu, HAYASHI, Yasuhiro, YANO, Takashi, NAKAHATA, Hideaki, HISADA, Toshiya, TRAN, Xuan Mai

ICEE 20152015年07月

詳細

開催地:Hong Kong

A Determination Method of Parameters of Line Drop Compensation in Distribution Systems with Photovoltaic Systems

ENOMOTO, Kyohei, KAWANO, Shunsuke, ITO, Masakazu, HAYASHI, Yasuhiro, ITO, Takaharu, ABE, Katsuya, MINAMI, Masahiro

ICEE 20152015年07月

詳細

開催地:Hong Kong

Spatial Prediction for Generating Synthetic Wind Power Profiles Based on Kriging Approach

FURUYA, Seigo, FUJIMOTO, Yu, HAYASHI, Yasuhiro

ICEE 20152015年07月

詳細

開催地:Hong Kong

Basic Study on Deployment of Low-Voltage Regulator Considering Existing Voltage Control in High-Voltage Distribution Systems

KIKUSATO, Hiroshi, YOSHINAGA, Jun, FUJIMOTO, Yu, HAYASHI, Yasuhiro,KUSAGAWA, Shinichi, MOTEGI, Noriyuki

ICEE 20152015年07月

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開催地:Hong Kong

Evaluation of Demand Response Based on the Random Forests

SUDOH, Kei: FUJIMOTO, Yu : HAYASHI, Yasuhiro

ICEE 20152015年07月

詳細

開催地:Hong Kong

Study of Multi-Area Energy Management Method for Peak Power Minimization

SUGIMOTO, Ryota: FUJIMOTO, Yu : HAYASHI, Yasuhiro : SANO, Yutaka : SAKAE, Chiharu

ICEE 20152015年07月

詳細

開催地:Hong Kong

現在担当している科目

科目名開講学部・研究科開講年度学期
理工学基礎実験2B 電生先進理工学部2017春学期
電気・情報生命工学フロンティア先進理工学部2017春学期
電気・情報生命工学フロンティア  【前年度成績S評価者用】先進理工学部2017春学期
回路理論A 1クラス先進理工学部2017春学期
回路理論A 1クラス 【前年度成績S評価者用】先進理工学部2017春学期
回路理論A・演習 1クラス先進理工学部2017春学期
回路理論A・演習 1クラス 【前年度成績S評価者用】先進理工学部2017春学期
電気・情報生命工学実験B A組先進理工学部2017春学期
電気・情報生命工学実験B B組先進理工学部2017春学期
電気・情報生命工学実験B A組 【前年度成績S評価者用】先進理工学部2017春学期
電気・情報生命工学実験B B組 【前年度成績S評価者用】先進理工学部2017春学期
電気・情報生命工学実験C先進理工学部2017秋学期
電気・情報生命工学実験C  【前年度成績S評価者用】先進理工学部2017秋学期
プロジェクト研究A先進理工学部2017春学期
プロジェクト研究A  【前年度成績S評価者用】先進理工学部2017春学期
プロジェクト研究B先進理工学部2017秋学期
プロジェクト研究B  【前年度成績S評価者用】先進理工学部2017秋学期
卒業研究A先進理工学部2017春学期
卒業研究A  【前年度成績S評価者用】先進理工学部2017春学期
卒業研究B先進理工学部2017秋学期
卒業研究B (春学期) 先進理工学部2017春学期
卒業研究B  【前年度成績S評価者用】先進理工学部2017秋学期
卒業研究B (春学期)  【前年度成績S評価者用】先進理工学部2017春学期
電気エネルギーシステムと環境先進理工学部2017春学期
Advanced Electrical Engineering先進理工学部2017春学期
Graduation Thesis A先進理工学部2017秋学期
Graduation Thesis B先進理工学部2017春学期
修士論文(電生)大学院先進理工学研究科2017通年
Research on Next-Generation Electrical Energy Systems大学院先進理工学研究科2017通年
先進電気エネルギーシステム研究大学院先進理工学研究科2017通年
電力システムにおける需要側資源の活用研究大学院先進理工学研究科2017通年
先進電気エネルギーシステム大学院先進理工学研究科2017秋学期
先進電気エネルギーシステム大学院先進理工学研究科2017秋学期
Advanced Seminar A大学院先進理工学研究科2017春学期
特別演習A大学院先進理工学研究科2017春学期
Advanced Seminar B大学院先進理工学研究科2017秋学期
特別演習B大学院先進理工学研究科2017秋学期
Seminar on Next-Generation Electrical Energy Systems A大学院先進理工学研究科2017春学期
先進電気エネルギーシステム演習A大学院先進理工学研究科2017春学期
Seminar on Next-Generation Electrical Energy Systems B大学院先進理工学研究科2017秋学期
先進電気エネルギーシステム演習B大学院先進理工学研究科2017秋学期
Seminar on Next-Generation Electrical Energy Systems C大学院先進理工学研究科2017春学期
先進電気エネルギーシステム演習C大学院先進理工学研究科2017春学期
Seminar on Next-Generation Electrical Energy Systems D大学院先進理工学研究科2017秋学期
先進電気エネルギーシステム演習D大学院先進理工学研究科2017秋学期
Master's Thesis (Department of Electrical Engineering and Bioscience)大学院先進理工学研究科2017通年
先進電気エネルギーシステム研究大学院先進理工学研究科2017通年
電力システムにおける需要側資源の活用研究大学院先進理工学研究科2017通年
電気・情報生命研究A 林 泰弘大学院先進理工学研究科2017通年
電気・情報生命研究B 柴田 重信大学院先進理工学研究科2017通年
ラボローテーション演習A大学院先進理工学研究科2017通年
ラボローテーション演習B大学院先進理工学研究科2017通年

教育方法・教育実践に関する発表、講演等

グリーンイノベーションが拓く制御理論応用の新潮流

2011年03月

詳細

概要:制御理論部会 最先端ワークショップ日 時:2011年3月7日(月) 13:00〜17:00 会 場:京都大学東京オフィス会議室

「スマートコミュニティを巡る動向」

2011年02月

詳細

概要:「低炭素社会の実現を目指して」〜関西からのスマートコミュニティ発信〜日 時:2011年2月21日(月)13時30分〜会 場:堂島リバーフォーラム国の取り組みも交えたスマートコミュニティの解説、講演会の概要と期待主 催:(株)産業タイムズ社

スマートグリッドの今

2011年02月

詳細

概要:日 時:2011年2月5日 13時30分〜 16時30分 会 場:明星大学日野キャンパス 主 催:電気学会東京支部 学生員委員会

演題:国内動向と産学官の取り組み

2011年01月

詳細

概要:スマートグリッドセミナー」講演 座談会:『スマートグリッド学−戦略・技術・方法論−』(林 泰弘、岡本 浩氏、林 秀樹氏)主 催:電気新聞

電気エネルギーシステムの未来像 −なぜ今スマートグリッドなのか−

2011年01月

詳細

概要:電気学会北陸支部学術講演会 日 時 :2011年1月20日 13時00分〜 14時00分 会 場 :金沢大学 角間キャンパス

スマートグリッドの開発動向

2010年11月

詳細

概要:早稲田大学ナノテクノロジーフォーラムジョイントフェア2010 基調講演 日 時:2010年11月15日16:50より

スマートグリッドが切り開く未来

2010年11月

詳細

概要:平成22年度 計量記念日全国大会  特別講演 主 催:経済産業省

未来の電気エネルギー供給形態のデザインと構築

2010年10月

詳細

概要:早稲田大学研究院フォーラム重点領域「エコ・エネルギー・ソサエティのための科学技術」

先進スマートグリッドの実現に向けた大学としての取り組み

2010年06月

詳細

概要:電気学会東北支部学術講演会

再生可能エネルギー大量導入に対応した送配電損出最小となる送配電ネットワークの最適構成決定手法の開発への期待

2010年05月

詳細

概要:ERATO(湊離散構造処理系プロジェクト)第1回離散構造処理系シンポジウム講演発表 日 時:2010年5月28日〜29日

再生可能エネルギーとの調和を目指した先進グリッド技術

2010年02月

詳細

概要:電気四学会関西支部専門講習会「スマートグリッドなど次世代電力システムとその 技術」日時:平成22 年2 月19 日 12:05〜12:50 場所:中央電気倶楽部 5F 大ホール (大阪市)

Active Network Systems with Energy Resources”

2009年05月

詳細

概要:韓国電気学会電力エネルギー部門大会招待講演(KIEE PES)日時:平成21 年5 月22 日 14:00 〜15:15 場所:Hoam Faculty Center at Seoul National University in Seoul, Korea