氏名

ナカニシ ヨウスケ

中西 要祐

職名

特任教授 (https://researchmap.jp/7000011905/)

所属

(大学院環境・エネルギー研究科)

連絡先

URL等

WebページURL

https://www.waseda.jp/fsci/gweee/other/2017/03/31/4329/(http://www.f.waseda.jp/nakanishi-yosuke/professor/index.html)

研究者番号
80757758

本属以外の学内所属

兼担

理工学術院(先進理工学部)

学内研究所等

理工学術院総合研究所(理工学研究所)

兼任研究員 2018年-

学歴・学位

学位

博士

論文

Optimization Design Suite for Expandable Micro-Grid Clusters

Iwamura Kazuaki; Nishiyama Kohei; Ryo Kobayashi;Nakanishi Yosuke ; Lewlomphaisarl Udom;Estoperez Noel; Lomi Abraham

INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY RESEARCH AND APPLICATIONS 2018年10月-2018年10月 

Optimal Scheduling of an Isolated Wind-Diesel-Battery System considering Forecast Error and Primary Frequency Response

Nguyen Nhung Hong; Nakanishi Yosuke

INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY RESEARCH AND APPLICATIONS 2018年10月-2018年10月 

Location Optimization Method of Newly Installable Wind Farms

Nishiyama Kohei; Ryo Kobayashi; Iwamura Kazuaki;Nakanishi Yosuke

International Conference on Electrical Engineering2018年06月-2018年06月 

A Study of Correlation of Wind Power Generation and Battery Allocation for Mitigation of Wind Farm's Fluctuation in Northern Part of Japan

Motegi Fumiya; Iba Kenji; Nakanishi Yosuke

International Conference on Electrical Engineering2018年06月-2018年06月 

DEVELOPMENT AND OPERATION OF EXPANDABLE MICRO-GRID CLUSTERS BASED ON THE DESIGN FRAMEWORK, GRID OF GRIDS OPTIMAL DESIGNER

Iwamura Kazuaki;Nakanishi Yosuke; Takamori Hiroshi; Nakanishi Yosuke; Lewlomphaisarl Udom;Estoperez Noel; Lomi Abraham

Grand Renewable Energy 2018 International Conference and Exhibition2018年06月-2018年06月 

再生可能エネルギーの不確実性を考慮した電力インフラ拡張に向けての二段階計画問題のモデル化 (新エネルギー・環境 高電圧合同研究会・風力発電一般(系統連系,風車耐雷,パワーエレクトロニクス,電力市場,経済政策・社会受容性など))

森元 雄介;張 宇萌;岩村 一昭;高森 寛;中西 要祐

電気学会研究会資料. FTE = The papers of Technical Meeting on "Frontier Technology and Engineering", IEE Japan2018(12)p.91 - 962018年06月-2018年06月 

CiNii

Frequency-Constrained Unit Commitment Considering Battery Storage System and Forecast Error

Nguyen Nhung Hong; Nakanish Yosuke

IEEE PES Innovative Smart Grid Technologies Conference Asia2018年05月-2018年05月 

Optimal Allocation Method for Introduction of a Large Amount of Wind Farms and Substations in Wind Farms

Nishiyama Kohei; Iwamura Kazuaki;Nakanishi Yosuke

IEEJ P&ESIEEE PES Thailand Joint Symposium2018年03月-2018年03月 

Multi-area State Estimation based on Detection of Bad Data and Analysis using M-estimator

Miyake Shuhei ;Magori Hideki ; Iwamura Kazuaki;Nakanishi Yosuke

IEEJ P&ESIEEE PES Thailand Joint Symposium2018年03月-2018年03月 

Study on Transmission Pricing Method under Congested Transmission in Extendable Micro-Grid Clusters

Morimoto Yusuke;Tanaka Akito;Takamori Hiroshi; Nakanishi Yosuke

IEEJ P&ESIEEE PES Thailand Joint Symposium2018年03月-2018年03月 

Development of Small Signal Stability Model for Power Systems considering the Network Transients

Nguyen, Nhung Hong; Nguyen-Duc, Huy; Nakanishi, Yosuke

IEEJ P&ESIEEE PES Thailand Joint Symposium2018年03月-2018年03月 

Unit Commitment considering Frequency Dynamic Constraint and Wind Power Forecast Uncertainties

Nguyen Nhung Hong; Nakanish Yosuke

IEEJ P&ESIEEE PES Thailand Joint Symposium2018年03月-2018年03月 

Optimal sizing of energy storage devices in wind-diesel systems considering load growth uncertainty

Nguyen, Nhung Hong; Nguyen-Duc, Huy; Nakanishi, Yosuke

IEEE Transactions on Industry Applications2018年02月-2018年02月 

DOIScopus

詳細

ISSN:00939994

概要:IEEE The development of wind power plants is an economical solution to provide energy to remote communities. For isolated systems, the co-generation of diesel generators and wind turbines is a typical configuration. These systems face several technical challenges, regarding load balancing and frequency control. Auxiliary devices such as battery storages, flywheels, and dump loads are often needed to ensure a more stable operation and a higher penetration level of wind energy. However, the cost of these auxiliary devices can be substantial. This paper proposes a two-stage stochastic optimization framework to determine the optimal size of energy storage devices in a hybrid wind-diesel system. The optimization problem considers two main uncertain factors, namely the wind speed and the load growth rate. An efficient scenario reduction method is also proposed to reduce the computational burden. The optimization framework is tested with a realistic case study.

An Improved Equivalent-Input-Disturbance Approach for Repetitive Control System With State Delay and Disturbance

Yu Pan; Yu Pan; Wu Min; Wu Min; She Jinhua; She Jinhua; She Jinhua; Liu Kang Zhi; Nakanishi Yosuke

IEEE Transactions on Industrial Electronics65(1)p.521 - 5312018年01月-2018年01月 

DOIScopus

詳細

ISSN:02780046

概要:© 2017 IEEE. An improved equivalent-input-disturbance (EID) approach is devised to enhance the disturbance-rejection performance for a strictly proper plant with a state delay in a modified repetitive-control system. A gain factor is introduced to construct an improved EID estimator. This increases the flexibility of system design and enables the adjustment of the dynamical performance of disturbance rejection. Moreover, the commutative condition, which is widely used for the conventional EID estimator, is avoided. Thus, it reduces the conservativeness of design by removing the constraints imposed by the commutative condition. The system is divided into two subsystems, and the separation theorem is applied to simplify the design. For one subsystem, the delay information on both the modified repetitive controller and the plant is used to reduce the conservativeness of stability condition. The resulting linear matrix inequality (LMI) is used to find the gain of the state-feedback controller. Another LMI is derived to design the gains of the state observer and the improved EID estimator for the other subsystem. A case study on a metal-cutting system validates the superiority of the developed method.

Stochastic Unit Commitment Considering Markov Process of Wind Power Forecast

Nguyen, Nhung Hong; Nakanishi, Yosuke

International Conference on Renewable Energy Research and Applications2017年10月-2017年10月 

Stochastic Dynamic Power Flow Analysis Based on Stochastic Response Surface Method and ARMA-GARCH Model

Nguyen, Nhung Hong; Nakanishi, Yosuke

IEEE PES Innovative Smart Grid Technologies Conference2017年04月-2017年04月 

Optimal Transmission Planning in Wind Farm using Proposed K-means Clustering Method

Kobayashi Ryo; Iba Kenji;Nakanishi Yosuke

IEEJ P&ESIEEE PES Thailand Joint Symposium2017年03月-2017年03月 

調査研究委員会レポート:風力発電大量導入時の系統計画・運用・制御技術調査専門委員会

中西 要祐;安田 陽;辻 隆男;西尾 宣俊

電気学会論文誌B(電力・エネルギー部門誌)137(9)p.NL9_5 - NL9_52017年02月-2017年02月 

DOICiNii

詳細

ISSN:0385-4213

Study on the current analysis of a transmission system with wind power penetration using stochastic power flow calculations

Sakai, Akihiko; Hu, Zuo; Iwamura, Kazuaki; Nakanishi, Yosuke; Iba, Kenji

IEEE Region 10 Annual International Conference, Proceedings/TENCONp.884 - 8872017年02月-2017年02月 

DOIScopus

詳細

ISSN:21593442

概要:© 2016 IEEE. Wind generated power is one of the most promising forms of renewable energy and its penetration into power grids is expected to increase in future. For the large-scale penetration of wind farms, it is important to build transmission networks dedicated to wind power generation at low costs and assess the impacts of wind power on the existing transmission networks. For solving these challenges, it is necessary to determine the appropriate capacities of the power lines to be built, and to estimate the additional power flow in the existing lines. In this paper, we propose a current flow analysis method using stochastic power flow calculations and we apply this method to a model system that simulates the power system of Tohoku (the northeast region of Japan). First, we calculate the stochastic maximum current values of the transmission lines of the model system using this method. Next, we calculate the actual current values of the transmission lines of the model system using the measured data of the wind farms in Tohoku. Additionally, we evaluate the effectiveness of the proposed method by comparing the stochastic maximum current values with the actual current values.

Geospatial approaches to design of wind power transmission networks and operation of microgrids

Iwamura, Kazuaki; Nakanishi, Yosuke; Kino, Yuya; Sakaguchi, Go; Kuno, Ryusuke; Tanaka, Noriko

IEEE PES Innovative Smart Grid Technologies Conference Europep.58 - 642016年12月-2016年12月 

DOIScopus

詳細

概要:© 2016 IEEE.In this study, we propose a four-dimensional geographic information system (4D-GIS) and present two of its applications. First, we introduce a mesh-type model of spatiotemporal data integration for 4D-GIS. The first application of the 4D-GIS is in the design of wind power transmission networks. In network design, 3D geospatial data and time change data are integrated as a cost surface; a combination of the genetic algorithm and a modified Prim search method generates power transmission networks that minimize the defined cost function. The second application is in operation support of clustered microgrids. The 4D-GIS is used in the visualization of power consumption changes in the microgrids. We also introduce a power information platform for processing big data, such as power consumption data collected from buildings, homes, etc. The optimal configuration of power information platforms in microgrid clusters is also proposed.

確率論的潮流計算を用いた風力発電導入時における送電系統の電流解析に関する一検討 (新エネルギー・環境 高電圧合同研究会・風力発電一般(系統連系、風車耐雷、パワーエレクトロニクス、電力市場、経済政策・社会受容性など))

酒井 明彦;中西 要祐;伊庭 健二

電気学会研究会資料. FTE = The papers of Technical Meeting on "Frontier Technology and Engineering", IEE Japan2016(11)p.103 - 1082016年07月-2016年07月 

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Wind power generation

Nakanishi, Yosuke; Saito, Tetsuo; Yokoyama, Ryuichi

Energy Technology Roadmaps of Japan: Future Energy Systems Based on Feasible Technologies Beyond 2030p.307 - 3222016年01月-2016年01月 

DOIScopus

詳細

概要:© Springer Japan 2016.Renewable energy, such as wind and photovoltaic power generation, is an attractive energy source to help solve global environmental issues surrounding the effects of greenhouse gases. Wind power ranks the largest among all renewable energy sources and offers the highest global market opportunity. In this chapter, the status and potential of wind power energy in Japan are described for onshore, fixed offshore, and floating offshore wind power. We discuss roadmaps for increased wind power penetration in Japan using technical countermeasures.

再生可能エネルギー導入拡大に向けた系統整備手法の検討 (電力技術 電力系統技術合同研究会・(1)電力技術・電力系統技術一般 (2)分散電源)

丸山 祥宏;高木 哲郎;山崎 智雄;坪内 崇;水谷 義昭;舘野 真澄;木野 由也;坂口 剛;尾溝 義治;加藤 昌樹;中西 要祐;山下 大樹

電気学会研究会資料. PE2015(9)p.57 - 632015年09月-2015年09月 

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風力発電用新設送電線の最適計画手法の適用 (電力技術 電力系統技術合同研究会・(1)電力技術・電力系統技術一般 (2)分散電源)

久野 龍介;木野 由也;坂口 剛;赤間 優樹;田中 規子;酒井 明彦;山下 大樹;中西 要祐;丸山 祥宏;高木 哲郎

電気学会研究会資料. PE2015(9)p.77 - 822015年09月-2015年09月 

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風力発電用新設送電線の潮流解析 (電力技術 電力系統技術合同研究会・(1)電力技術・電力系統技術一般 (2)分散電源)

酒井 明彦;山下 大樹;中西 要祐;木野 由也;坂口 剛;丸山 祥宏;高木 哲郎

電気学会研究会資料. PE2015(9)p.83 - 882015年09月-2015年09月 

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PV実稼働容量推定方法を用いた配電系統における実負荷と太陽発電量のオンライン推定

中西 要祐;伊庭 健二

電気学会論文誌B(電力・エネルギー部門誌)135(1)p.35 - 412015年01月-2015年01月 

DOICiNii

詳細

ISSN:0385-4213

概要:This paper presents an online method for estimating actual load and photovoltaic generation (PV) output in distribution system with PV actual activated capacity estimation. In recent years, it is planned to introduce the renewable energy on a large scale into the power system in order to achieve the low carbon society. However, PV has a negative effect on the distribution system. When PV is introduced on a large scale into distribution system, it is difficult to know accommodating amount of load in accident restoration. Because measured load contains load in consumers and PV output. Thus, it is necessary to estimate actual load and PV output online in distribution system. This paper proposes the hybrid method of independent component analysis (ICA) and PV actual activated capacity estimating method. The former has new formulation that is inputted active power of load and insolation. The latter estimates PV actual activated capacity from results of ICA. The effectiveness of the proposed method is demonstrated using actual data of load in consumers that is regulated reactive power. The proposed method can estimate actual load and PV output more accurately than a conventional method. Moreover, the proposed method can estimate them accurately even if load is changed rapidly.

変電所パワーエレクトロニクス機器(FACTS)のデータモデルTF活動について)

浜松浩一;片山茂樹;芹澤善積;大谷哲夫;中西要祐;川上紀子

電気学会C部門大会シンポジウム2014年09月-2014年09月 

段階的な風力発電導入を想定した遺伝的アルゴリズムによるウィンドファーム連系設備計画手法の開発 (電力技術 電力系統技術合同研究会・(1)電力技術・電力系統技術一般,(2)分散電源)

江口 大祐;高坂 一郎;山下 大樹;中西 要祐;伊庭 健二;横山 隆一

電気学会研究会資料. PE2014(115)p.115 - 1202014年09月-2014年09月 

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Control technologies for renewable energy integration

Nakanishi Yosuke

ICEE20142014年06月-2014年06月 

Cost Minimum Transmission Planning for Large Scale Introduction of Wind Farms by Tabu Search

Eguchi Daisuke;Kousaka Ichiro; Yamashita Daiki; Nakanishi Yosuke; Iba Kenji; Yokoyama Ryuici

2014年06月-2014年06月 

Next steps for Japan:Smart Community Demonstration in Kitakyushu

Nakanishi Yosuke

ISGAN (Clean Energy Ministeria)Web Seminor2014年05月-2014年05月 

Considerations of the optimization planning of power lines in the Wind Firm

Kousaka Ichiro;Eguchi Daisuke; Yamashita Daiki; Nakanishi Yosuke; Yokoyama Ryuici; Iba Kenji

IEEE PES Innovative Smart Grid Technologies Conference Europe2014年02月-2014年02月 

Kitakyushu smart community & technologies

Nakanishi Yosuke

IEEE PES Innovative Smart Grid Technologies Conference Europe2014年02月-2014年02月 

マイクログリッド向け需給制御システムの開発

林 巨己;島崎 祐一;近藤 英幸;長田 悠人;飯坂 達也;勝野 徹;中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)134(1)p.40 - 482014年01月-2014年01月 

DOICiNii

詳細

ISSN:0385-4213

概要:This paper describes a newly developed demand and supply control system for micro grid. Renewable energy is expected to reduce green house gases and becomes widely used in the world. By contrast, fluctuated power output from renewable energy may affect the power systems, especially frequency. The demand and supply control system for micro grid is expected to reduce it. The developed system consists of 4 control layers. The first layer is a planning of demand and supply every 30 minutes until next day. The second layer is an economic dispatch control (EDC) every 1 minute. The third layer is a load frequency control (LFC) every 1 second. The last layer is battery local control every 0.1 second. The developed system can control frequency stably against fast change of renewable energy output, and can operate generators economically by cooperating EDC and LFC, and using battery local control. Moreover, the battery can be operated systematically by managing battery states of charge (SOC). The developed system is verified using a real time digital simulator with promising results.

再生可能エネルギーの不確実性に対応した小規模グリッドの最適電源運用計画手法

高野 浩貴;張 鵬;村田 純一;橋口 卓平;合田 忠弘;飯坂 達也;中西 要祐

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and Systems Society133(10)p.1897 - 19042013年10月-2013年10月 

DOICiNii

詳細

ISSN:03854221

概要:Micro grids are expected to be one of the most useful energy systems in terms of efficient use of renewable energy sources with few adverse effects on the main power grids when the micro grids are operated properly from the viewpoint of balancing the electric power supply and demand. However, it is difficult to maintain the supply-and-demand balance because distributed renewable energy generation (DREG), such as photovoltaic generation systems (PVs) and wind turbine generation systems (WTs), account for a large percentage of the generators in the micro grids. Therefore, an operation planning method considering the uncertainty of prediction is needed for ensuring a stable grids operation. This paper presents an optimization method for operating plans of controllable generators in micro grids that copes with the uncertainty of DREG's outputs. In the proposed method, the optimal operating plans are obtained by using an enumeration method or a preconditioned tabu search (TS). Numerical simulations are carried out for a micro grid model in order to verify the usefulness of the proposed method.

風力発電と電力系統の融和-潜在的な大容量風力電源の導入に向けた送電線計画-

酒井 明彦;中西 要祐;伊庭 健二

日本風力発電協会雑誌2013年08月-2013年08月 

部分的最小二乗法を用いた日射量予測とその信頼区間の推定方法

石橋 直人;飯坂 達也;大平 涼子;中西 要祐

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(1)p.64 - 712013年01月-2013年01月 

DOICiNii

詳細

ISSN:03854213

概要:This paper presents an insolation forecasting method using numerical weather forecasting data and a confidence interval estimating method. It is planned to introduce photovoltaic (PV) system on a large scale into the power system in order to achieve the low carbon society. Thus, it is necessary to forecast the insolation and evaluate the confidence interval in terms of power system operating and planning. This paper proposes the insolation forecasting method by Partial Least Squares (PLS) and the confidence interval estimating method considering the forecasting error distributions. PLS handles multicollinear data among input variables in order to construct proper forecasting models. The proposed method can estimate continuous confidence intervals by linearly-approximating for representative values of some weather conditions extracted features from forecasting error distributions. The effectiveness of the proposed method is demonstrated using numerical weather forecasting data and actual data observed by Japan Meteorological Agency. The proposed method by PLS can forecast the hourly insolations more accurately than conventional multiple regression equation. Moreover, the proposed method can evaluate continuous confidence interval.

再生可能エネルギーの不確定性に対応した小規模グリッドの最適需給計画手法

高野 浩貴;村田 純一;張 鵬;橋口 卓平;合田 忠弘;飯坂 達也;中西 要祐

電気学会研究会資料. PE, 電力技術研究会2012(76)p.69 - 742012年08月-2012年08月 

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Thermal unit scheduling for CO2 reduction including significant wind power penetration

Yamashita, D.; Niimura, T.; Yokoyama, R.; Nakanishi, Y.

IEEE Power and Energy Society General Meeting2011年12月-2011年12月 

DOIScopus

詳細

ISSN:19449925

概要:In this paper, we present a method to determine the unit commitment schedules considering CO2 emission and cost including the frequency regulation capability of the units to mitigate fluctuation of wind power. The authors developed an extended procedure that obtains a trade-off solution of cost versus CO2 emission including a significant wind power penetration. The method has been tested on the 10-unit 24-hour model system using the estimated wind power curve derived from an actual wind farm. The results, such as the shadow prices of CO2 obtained by the trade-off analysis, may provide a basis of evaluating the equivalent cost of the wind farms and their contribution toward CO2 reduction. © 2011 IEEE.

配電系統におけるシミュレーション技術

中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)122(9)p.965 - 9682011年10月-2011年10月 

DOICiNii

詳細

ISSN:0385-4213

概要:Deregulation in power systems has created many technological challenges encouraging the intereconnection of dispersed generators (DG) and the changes of the operation in distribution power systems. Therfore more sophiscated analysis and operation of power systems will be expected regarding the impacts and power quality in association with such situations. This article discribes the new trend of simulation methods applied for distribtion power systems.

風力発電予測手法とその信頼区間の推定手法

飯坂 達也;神通川 亨;近藤 英幸;中西 要祐;福山 良和;森 啓之

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and Systems Society131(10)p.1672 - 16782011年10月-2011年10月 

DOICiNii

詳細

ISSN:03854221

概要:This paper describes a wind power forecasting method and its confidence interval estimation. Recently, flat control of wind power generators by various batteries is required. For the flat control, accurate wind power forecasts and their error confidence intervals are needed. In this paper, wind speed forecasts are calculated by regression models using GPV (Grid Point Vale) weather forecasts. The forecasts are adjusted by the fuzzy inference using the latest errors. The wind power forecasts are translated from the wind speed forecasts using two power-curves. The power-curves are selected or combined by fuzzy inference depending on wind direction. The error confidence interval models are generated for each forecasting target time. Each confidence interval is combined by the other fuzzy inference.
The proposed methods are applied to actual wind power generators, and found that forecasting errors are better than the conventional methods. The almost all of forecasts can be within error confidence intervals estimated by the proposed method. The results show the effectiveness of the proposed methods.

予測誤差を考慮した小規模独立電力系統の発電機起動停止計画

岡田 真哉;島 幸司;佐々木 豊;造賀 芳文;餘利野 直人;中澤 親志;中西 要祐

電気学会研究会資料. PSE, 電力系統技術研究会2011(1)p.41 - 462011年01月-2011年01月 

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自然エネルギー発電出力安定化のためのモデル予測型レファレンスガバナ

坪田 豊;内田 健康;神通川 亨;中西 要祐

電気学会研究会資料. PE, 電力技術研究会2010(149)p.101 - 1062010年09月-2010年09月 

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小規模独立電力系統を対象としたダイナミック経済負荷配分法 : ネットワーク制約の考慮

佐々木 豊;餘利野 直人;大平 彰史;造賀 芳文;中澤 親志;中西 要祐

電気学会研究会資料. PE, 電力技術研究会2010(149)p.1 - 62010年09月-2010年09月 

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小規模独立電力系統を対象とした需給制御システム

餘利野 直人;佐々木 豊;中住 護;生関 友裕;造賀 芳文;中澤 親志;中西 要祐

電気学会研究会資料. PSE, 電力系統技術研究会2010(76)p.143 - 1482010年09月-2010年09月 

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小規模独立電力系統における発電機起動停止計画 : ネットワーク制約の考慮

佐々木 豊;岡田 真哉;島 幸司;造賀 芳文;餘利野 直人;中澤 親志;中西 要祐

電気学会研究会資料. PSE, 電力系統技術研究会2010(148)p.7 - 122010年09月-2010年09月 

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蓄電池による風力発電出力平準化技術 : 風力発電用電力安定化装置の開発および実証試験

中西 要祐;桑山 仁平;淺沼 圭司;岡崎 昭仁;三谷 桂;杉本 和繁

電気学会研究会資料. PE, 電力技術研究会2008(12)p.19 - 242008年01月-2008年01月 

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配電系統用SVCの安定性評価に関する検討

清水 慶一;元治 崇;中沢 親志;中西 要祐

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 Society125(5)p.521 - 5292005年05月-2005年05月 

DOICiNii

詳細

ISSN:03854213

概要:This paper presents stability and an interactive phenomenon of one SVC, two or more sets of SVC, a SVC and a SVR in distribution systems. In particular, we focus on the saddle-node bifurcation and Hopf bifurcation points. The two local bifurcation points show a boundary of a stable domain.

配電系統における分散電源、SVCとSVRの相互干渉に関する一考察

清水 慶一;元治 崇;宮里 健司;中沢 親志;中西 要祐

電気学会研究会資料. PE, 電力技術研究会2003(139)p.49 - 542003年09月-2003年09月 

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電力品質ソリューションとそれを支える技術 (エネルギーソリューション特集)

中西 要祐;湯谷 浩次;仁井 真介

富士時報75(11)p.634 - 6392002年11月-2002年11月 

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詳細

ISSN:03673332

配電系統におけるシミュレーション技術

中西 要祐

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 Society122(9)p.965 - 9682002年09月-2002年09月 

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詳細

ISSN:03854213

電圧信頼度を考慮した無効電力・電圧制御に対する粒子群最適化

吉田 裕宇;河田 謙一;福山 良和;中西 要祐

15(4)2002年01月-2002年01月 

負荷融通におけるモダンヒューリスティック手法の比較検討

不動 弘幸;元治 崇;福山 良和;中西 要祐

17(1)2002年01月-2002年01月 

分散型電源連系系統の解析技術 (電力流通ソリューション特集)

中西 要祐;小島 武彦;仁井 真介

富士時報74(12)p.659 - 6622001年12月-2001年12月 

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ISSN:03673332

並列処理による電力系統の高速信頼度評価技術 (シミュレーション技術特集)

北川 慎治;福山 良和;中西 要祐

富士時報74(6)p.361 - 3642001年06月-2001年06月 

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詳細

ISSN:03673332

分散型電源が連系された配電系統の電圧特性改善に関する検討:確率論的アプローチ

山本 文雄;北村 章夫;藤田 超徹;中西 要祐;長沢 誠

電気学会論文誌B(電力・エネルギー部門誌)120(10)p.1239 - 12472000年10月-2000年10月 

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ISSN:0385-4213

概要:In the near future, many distributed generation systems, such as photovoltaic or wind power generation, will be interconnected to the electric power distribution systems of Japan. Therefore, we must make the best use of the distributed generation systems considering their influence on power quality, stability, and so on.
This paper investigates the influence of distributed generation systems on the voltage characteristics in distribution systems by a stochastic approach. Firstly, we calculate the node voltage fluctuations in a test distribution system using the stochastic power flow, and show that the voltage characteristics deteriorate after interconnecting distributed generation systems. Secondly, we formulate the problem of voltage characteristics improvement as the nonlinear optimization problem which has the following objective functions: 1) minimize the total voltage fluctuations throughout a distribution system; 2) regulate the node voltage at a specified value considering voltage fluctuations. These problems can be also solved using the stochastic power flow. The simulation results show that the node voltage fluctuations can be minimized by controlling the parameters regarding the reactive power of distributed generation systems, and the stochastic power flow is effective in calculating the practical value of reactive power of distributed generation systems in order to regulate the node voltage.

分散型電源用誘導発電機の単独運転検出機能省略条件に関する解析

中沢 親志;中西 要祐

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 Society120(5)p.678 - 6852000年05月-2000年05月 

DOICiNii

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ISSN:03854213

概要:Islanding of induction generators for wind power generation systems can cause a variety of problems and must be prevented islanding. In Japan, Ministry of International Trade and Industry (MITI) revised “technical requirements for distributed generators on distribution systems” in 1998. The technical requirements do not require islanding detection systems for wind power generation systems consist of induction generators. However, if reactive power of induction generators and capacitors of distribution systems are closely matched, the islanding detection by ordinary relays becomes difficult because of self-excited of induction generators. In this paper, frequency of induction generators after theirs disconnection from grids, so called the self-excited frequency, is studied by analytical procedures. The analytical procedures and related simulations, using the Electro-Magnetic Transients Program (EMTP) and Transient Network Simulator (TNS), are described. The analytical results are presented and compared with the corresponding obtained simulation results.

電圧信頼度を考慮したParticle Swarm Optimizationによる電圧無効電力制御方式の検討

吉田 裕宇;河田 謙一;福山 良和;高山 信一;中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)119(12)p.1462 - 14691999年12月-1999年12月 

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ISSN:0385-4213

概要:This paper presents a particle swarm optimization for reactive power and voltage control (VQC) problem formulated as a mixed integer nonlinear optimization problem (MINLP) considering voltage security assessment. The proposed method realizes loss minimization and determines VQC strategy with continuous and discrete control variables such as AYR operating values, OLTC tap positions, and amount of reactive power compensation equipment. The method also considers voltage security assessment using a continuation power flow and voltage contingency analysis technique when determining the control strategy. The feasibility of the proposed method for the problem is demonstrated and compared with reactive tabu search and enumeration method on practical power system models with promising results.

変圧器タップ群の自立分散型ファジィ適応制御

餘利野 直人;首藤 隆徳;西本 正臣;佐々木 博司;杉原 弘章;中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)119(12)p.1455 - 14611999年12月-1999年12月 

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ISSN:0385-4213

概要:This paper proposes a new distributed autonomous control method for tap change under load (TCUL) transformers. Using a fuzzy control scheme, we realize advantageous control characteristics which inherit both the reliability of the conventional control scheme and the optimality of the control actions of distributed controllers, where the index derived from the optimization problem is used to minimize the voltage deviations and the number of tap operations. To increase the performance of control, a voltage prediction algorithm in each controller and then the data exchange scheme among controllers is adopted to consist an adaptive control scheme. Effectiveness of the proposed method is demonstrated through numerical simulations using an equivalent system made from a real system data.

電力・エネルギー部門編修活動のご紹介

電力・エネルギー部門編修委員会;福永 定夫;新藤 孝敏;中西 要祐

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 Society119(10)p.1013 - 10151999年10月-1999年10月 

DOICiNii

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ISSN:03854213

分散電源の連系を考慮した配電系統潮流計算用機器モデルの開発

藤根 栄;元治 崇;由良 俊樹;福山 良和;渡辺 拓也;中西 要祐

電気学会研究会資料. PE, 電力技術研究会1999(103)p.49 - 541999年09月-1999年09月 

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変圧器タップの最適制御問題に関する検討

餘利野 直人;西本 正臣;佐々木 博司;杉原 弘章;首藤 隆徳;中西 要祐

電気学会研究会資料. PE, 電力技術研究会1999(119)p.1 - 61999年09月-1999年09月 

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配電系統に連系される発電機起動停止時の実測と解析

清水 慶一;藤根 栄;元治 崇;中西 要祐;小田 俊幸

電気学会研究会資料. PE, 電力技術研究会1999(134)p.49 - 541999年09月-1999年09月 

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分散並列処理を用いた想定事故解析の高速化に関する検討

北川 慎治;福山 良和;中西 要祐

電気学会研究会資料. PE, 電力技術研究会1999(151)p.65 - 701999年09月-1999年09月 

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負荷融通問題に対するReactive Tabu Searchの適用とGA及びPSAとの比較検討

不動 弘幸;藤根 栄;元治 崇;福山 良和;中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)119(3)p.317 - 3251999年03月-1999年03月 

DOICiNii

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ISSN:0385-4213

概要:Service restoration in distribution systems can be formulated as a combinatorial optimization problem. It is the problem to determine power sources for each load considering various operational constraints in distribution systems. Up to now, the problem has been dealt with using conventional methods such as branch and bounds method, expert system, neural networks, and fuzzy reasoning.
Recently, modern heuristic methods such as Genetic Algorithms (GA), Simulated Annealing (SA), and Tabu Search (TS) are noticed as efficient methods for solving large combinatorial optimization problems. Moreover, Reactive Tabu Search (RTS) can solve the parameter tuning problem, which is recognized as the essential problem of the TS. Therefore, RTS, GA, and SA can be efficient search method for service restoration in distribution systems.
This paper develops a reactive tabu search (RTS) for service restoration and compares RTS, GA, and PSA (Parallel SA) for the problem. The feasibility of the proposed methods is shown and compared on a typical distribution system model with promising results.

変圧器タップ群の自律分散制御に関する検討

餘利野 直人;藤村 勉;上名 克尚;杉原 弘章;杉山 勝範;中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)118(6)p.658 - 6641998年06月-1998年06月 

DOICiNii

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ISSN:0385-4213

概要:Previous voltage stability studies have shown that typical OLTC controls can cause oscillatory behaviors as wel as reverse controls in tap changing operations due to interactions among multiple OLTC controls. These phenomena are undesirable from the viewpoint of both economy and security of power system operations.
In this paper, to avoid the above undesirable phenomena as well as to realize suboptimal voltage profile agains voltage instability, we proposes a new control method to coordinate numerous OLTC controls existing in transmissim and distribution networks. The method is based on the autonomous decentralized control scheme. A fundamenta theory and some techniaues for this control scheme are proposed.

配電系統向け高速潮流計算用電圧自動調整器モデル

福山 良和;中西 要祐

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 Society118(6)p.735 - 7361998年06月-1998年06月 

DOICiNii

詳細

ISSN:03854213

配電系統のロスミニマム問題に対する Reactive Tabu Search の適用

不動 弘幸;元治 崇;福山 良和;中西 要祐

電気学会研究会資料. PE, 電力技術研究会1997(32)p.1 - 61997年10月-1997年10月 

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配電系統のロスミニマム検討条件の解析とロスミニマム効果

不動 弘幸;元治 崇;中西 要祐;福山 良和;桑山 仁平;草間 悟

電気学会研究会資料. PE, 電力技術研究会1997(32)p.7 - 121997年10月-1997年10月 

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電圧の質とタップ切替回数の協調のための自律分散アルゴリズム

餘利野 直人;上名 克尚;佐々木 博司;杉原 弘章;杉山 勝範;中西 要祐

電気学会研究会資料. PE, 電力技術研究会1997(63)p.69 - 741997年10月-1997年10月 

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変圧器タップ群の逆動作に関する判定基準およびタップロック制御について

餘利野 直人;藤村 勉;佐々木 博司;杉原 弘章;中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)117(9)p.1238 - 12441997年09月-1997年09月 

DOICiNii

詳細

ISSN:0385-4213

概要:The dynamic behaviours of the TCUL controls are investigated from the viewpoint of the effect of control actions on voltage stability as well as on voltage regulations, taking into account the interference among the multiple control actions of TCULs. The Liapunov stability theorem is applied to a system having nonlinear voltage dependent loads to derive conditions for stability. We define the term “reverse control action for multiple TCULs” to indicate undesirable tap operations, where multiple controls as a whole cause the decrease in voltages of specific nodes, leading to voltage collapse, in spite of normal individual operations. A criterion to detect the phenomena is derived and then a new control strategy based on this criterion is demonstrated. In this demonstration, unsuitably acting TCULs are individually deactivated at their most effective timings to improve voltage stability. The effectiveness of the proposed criterion and its application to the deactivation control have successfully been confirmed through numerical simulations in a radial network with three cascaded TCUL transformers, where a specific area of a real system is reduced to form the example system.

負荷融通問題へのメタヒューリスティック手法の適用

福山 良和;中西 要祐;不動 弘幸;元治 崇

インテリジェント・システム・シンポジウム講演論文集 = FAN Symposium : fuzzy, artificial intelligence, neural networks and computational intelligence6p.334 - 3371996年10月-1996年10月 

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配電系統ロスミニマム化手法の検討

不動 弘幸;元治 崇;福山 良和;中西 要祐

電気学会研究会資料. PE, 電力技術研究会1996(60)p.21 - 301996年09月-1996年09月 

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並列遺伝的アルゴリズムの負荷融通問題への適用

福山 良和;中西 要祐;佐藤 進

電気学会研究会資料. PE, 電力技術研究会1995(145)p.89 - 981995年10月-1995年10月 

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並列処理を用いた放射状系統高速潮流計算

福山 良和;中西 要祐

電気学会論文誌B(電力・エネルギー部門誌)116(1)p.20 - 261995年01月-1995年01月 

DOICiNii

詳細

ISSN:0385-4213

概要:Load flow calculation is a basic tool for power system planning and control which include load flow analysis, voltage control, service restoration, network reconfiguration, and etc. In these applications, it is very important to solve the load flow problem as efficiently as possible.
This paper presents a fast load flow using parallel processing for radial power systems. The method can be applied to secondary systems and distribution systems. Since it uses only active and reactive power injection to main lines and laterals as state variables, reduction of number of state variables can be realized. Radial networks are mapped to the tree structure of parallel processor systems in the proposed method. The forward/backward sweep approach is realized by communication from a root processor to leaf processors and vice versa. Using the mapping scheme of the proposed method, each processor has to communicate with only neighboring processors. The proposed method is evaluated on various radial systems with promising results.

アナログ型電力系統シミュレータによる内部型パラメータ共振の発生の確認および計測技術の検討

富山 勝幸;中西 要祐;田村 康男

電気学会論文誌B(電力・エネルギー部門誌)113(11)p.1274 - 12821993年11月-1993年11月 

DOICiNii

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ISSN:0385-4213

概要:Auto-parametric resonance has not been detected nor observed in a real power system, probably because the problem-oriented instrumentation network is not available today. It has been confirmed by our research group from the viewpoint of theory, digital simulations, and artificial transmission system with rotating machines that the auto-parametric resonance may come out in a power system where certain types of resonance conditions are satisfied as when the initial transient impact such as line opening, generator tripping, and a line-to-ground fault has been applied.
The objective of this paper is to confirm the auto-parametric resonance phenomena on a large-scale advanced-type power system simulator (APSA) which features various functions which are very close to those of a real power system, and to promote the instrumentation techniques needed to record and analyze such infrequent phenomena.

電圧・無効電力協調制御

中西 要祐;横山隆一

8(2)1993年02月-1993年02月 

教育・研究用電力系統解析シミュレータの開発

中西 要祐;田村 康男

5(2)1990年05月-1990年05月 

電力潮流の多根問題における解の構造,特異点,存在条件について

中西 要祐;山田 研二;長沢 宏;岩本 伸一;田村 康男

電気学会論文誌B(電力・エネルギー部門誌)100(6)p.337 - 3441980年06月-1980年06月 

DOICiNii

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ISSN:0385-4213

悪条件な電力系統に対する潮流計算法

岩本 伸一;中西 要祐;田村 康男

電気学会論文誌B(電力・エネルギー部門誌)100(2)p.109 - 1151980年02月-1980年02月 

DOICiNii

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ISSN:0385-4213

学内研究制度

特定課題研究

風力発電大量導入時の系統整備計画技術の高度化

2017年度

研究成果概要:設備計画テーマの一環で、確率計画法を用いた電力導入シナリオ問題について検討した。(1)確率計画法による複数シナリオの生成・風力発電や需要の不確実性をモデル化し運用シナリオを生成する確率計画方式を開発した。・風力発電の不確実性を考慮...設備計画テーマの一環で、確率計画法を用いた電力導入シナリオ問題について検討した。(1)確率計画法による複数シナリオの生成・風力発電や需要の不確実性をモデル化し運用シナリオを生成する確率計画方式を開発した。・風力発電の不確実性を考慮した確率ユニットコミットメント設備運用方式を開発した。(2) 風力導入シナリオと送電線設計への適用と実データによる評価地形、風速の実データを用いて風力発電有望領域を自動抽出する方式について開発した。今後、これらの成果は、設備設計・運用計画のための最適化シミュレーションソフトウエア(GGOD:Grid of Grids Optimal Designer)に適用していく。

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