吉田　彬

掲載種別：研究論文（国際会議プロシーディングス）ISSN：978-4-907764-68-5

掲載種別：研究論文（学術雑誌）ISSN：2169-3536

掲載種別：研究論文（国際会議プロシーディングス）ISSN：9781713814061

掲載種別：研究論文（国際会議プロシーディングス）ISSN：9781713814061

掲載種別：研究論文（国際会議プロシーディングス）ISSN：9781713814061

掲載種別：研究論文（国際会議プロシーディングス）ISSN：9781713814061

掲載種別：研究論文（国際会議プロシーディングス）ISSN：9781713814061

掲載種別：研究論文（学術雑誌）

掲載種別：研究論文（国際会議プロシーディングス）

ISSN：03787788

概要：© 2017 Elsevier B.V. As demand-side energy management system (EMS) has not only a function to maximize owner's utility by automatic control but also a potential capability to respond a demand activation, demand-side EMS is expected to fulfill the key role for intelligent control of community energy management. To achieve the stable control result of EMS against the uncertain environment, it needs approach from both forecast and operation sides. The objective of this study is to construct a control scheme for a home EMS from a practicable implementation perspective and to evaluate the control performance of the scheme proposed. The scheme is composed of operational planning with receding horizon and energy demand forecasting. The goal of the scheme is to maximize householder's utility only by retrofitting the home EMS to a residential household. Throughout numerical results, it is revealed that the better control performance comes from the conservative operational strategy derived from the multiple scenarios.

ISSN：19493053

概要：© 2016 IEEE. 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, demand-side 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.

ISSN：03787788

概要：© 2015 Elsevier B.V. All rights reserved.In Japan, a feed-in tariff scheme has been implemented to promote the use of photovoltaic power generators in combination with electric batteries. Although many researchers have assessed the operation of grid-connected photovoltaic systems with electric batteries, little attention has been paid to the impact of the electric batteries' degradation characteristics. This paper evaluates the operation of a grid-connected photovoltaic/electric-battery system in a house in terms of cost savings and energy savings. We constructed a long-term operational optimization model considering the degradation characteristics of the electric battery. This model contains two objective functions: energy savings and operating costs. We create a scenario of power rates and photovoltaic/battery system configurations. To reveal the optimal operational strategy for the photovoltaic/battery system, the multi-objective optimization problem was solved. As a result, Pareto-optimal solutions were obtained, and trade-off relationships between cost and energy savings are presented. In this study, the utilization of a grid-connected photovoltaic system with an electric battery was expected to be most effective in energy-saving priority operation.

ISSN：1550-624X

ISSN：2187-9761

概要：The main objective of this study is to evaluate energy saving potentials of polymer electrolyte fuel cell cogeneration systems integrated with solar cell and battery installed into residential houses. There exist many alternative operational policies in the above systems, and the mathematical planning approach is taken to derive the rational systems operational solution based on the mixed-integer linear planning method. In the numerical analysis of this study, energy saving characteristics of 12 alternative systems are compared respectively, and as one of main obtained results, it become clear that the energy saving effects to install battery into the systems depend largely on the operational policy of the system together with the evaluation criterion of adverse electricity from the solar cell to the electric grid. In other words, in the case of giving high priority to the self-consumption of electricity from the solar cell within the house, the energy saving potential to install battery increases largely, but few effects are noticed in other cases.

ISSN：1996-1073

ISSN：0387-5016

概要：In this study, a renewal planning problem of energy supply system is formulated as a large scale mixed-integer linear programming problem, in which the objective function to the minimized is the average value of annual total cost during system's evaluation period. By adopting the programming language AMPL and CPLEX solver, a numerical study is carried out for a hospital, where electrical(e.g., heat pump) and gas(e.g., gas engine cogeneration) systems are compared together with arbitrary combination one, which is composed of electrical and gas driven pieces of equipment, by focusing particularly on the influence of initial system's difference. The main results obtained are as follows: (a) If the initial system is gas one, it is better to renew it to the electrical one as soon as possible due to relatively low energy efficiency of gas utilizing pieces of equipment, the high price of gas input energy and so on. (b) If the initial system is electrical one, the optimal renewal year becomes relatively later year, because it is economically better to use the initially installed high efficiency system as long as possible. (c) Theoretically, the arbitrary combination system is of course the best renewal one. However, there is no economic difference between the arbitrary combination system and the electrical one.

国内会議口頭発表（一般）

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：広島

国内会議ポスター発表開催地：秋田

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：東京

国際会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：札幌

国内会議口頭発表（一般）開催地：東京

国内会議口頭発表（一般）開催地：大阪

国内会議口頭発表（一般）開催地：大阪

国内会議口頭発表（一般）開催地：大阪

国内会議口頭発表（一般）開催地：徳島

国際会議ポスター発表開催地：Passau

国内会議公開講演開催地：新宿

国内会議口頭発表（一般）開催地：豊橋

国内会議口頭発表（一般）開催地：富山

国際会議公開講演開催地：新宿

国内会議口頭発表（一般）開催地：博多

国内会議口頭発表（一般）開催地：博多

国内会議口頭発表（一般）開催地：大阪

国内会議口頭発表（一般）開催地：千代田

国内会議口頭発表（一般）開催地：千代田

国際会議口頭発表（一般）

国際会議口頭発表（一般）

国際会議口頭発表（一般）開催地：横浜

国内会議口頭発表（一般）

国内会議口頭発表（一般）開催地：札幌

国内会議口頭発表（一般）開催地：札幌

国際会議口頭発表（一般）

国際会議口頭発表（一般）

国際会議口頭発表（一般）

国際会議口頭発表（一般）

国内会議口頭発表（一般）開催地：千代田

国内会議口頭発表（一般）

国内会議口頭発表（一般）

国内会議口頭発表（一般）

国際会議口頭発表（一般）

国際会議口頭発表（一般）

国内会議口頭発表（一般）開催地：千代田

国内会議口頭発表（一般）開催地：千代田

国内会議口頭発表（一般）

国内会議口頭発表（一般）開催地：福井

国内会議口頭発表（一般）開催地：福井

国内会議口頭発表（一般）開催地：千代田

国際会議口頭発表（一般）開催地：桂林

国内会議口頭発表（一般）開催地：千葉

国内会議口頭発表（一般）開催地：大津

国際会議口頭発表（一般）

国際会議口頭発表（一般）

国際会議口頭発表（一般）

国内会議口頭発表（一般）