Three Phase Unbalance Elimination in Distribution System by Optimal Inverter Dispatch of PCS

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カテゴリ: 論文誌(論文単位)グループ名: 【B】電力・エネルギー部門発行日: 2019/01/01タイトル(英語): Three Phase Unbalance Elimination in Distribution System by Optimal Inverter Dispatch of PCS著者名: Hieu Xuan Nguyen (Gradu ate School of Engineering, Yokohama National University/Faculty of Engineering, Vietnam National University of Agriculture), Takao Tsuji (Graduate School of Engineering, Yokohama National University), Tsutomu Oyama (Graduate School 著者名(英語): Hieu Xuan Nguyen (Graduate School of Engineering, Yokohama National University/Faculty of Engineering, Vietnam National University of Agriculture), Takao Tsuji (Graduate School of Engineering, Yokohama National University), Tsutomu Oyama (Graduate School of Engineering, Yokohama National University), Kenko Uchida (Faculty of Science and Engineering, Waseda University)キーワード: optimal power flow (OPF)，photovoltaic (PV) system，distribution system，power quality，reactive power control要約(英語): The increasing introduction of photovoltaic (PV) units into low voltage distribution system causes serious power quality issues, e. g. voltage variation and three phase voltage unbalance (VU) which limit the rating and number of further connections. Some conventional countermeasures such as on load tap changer, step voltage regulator, etc. have been applied to mitigate the voltage problems. However, these methodologies might not be enough to cope with PV output fluctuation due to the limitation in the number of tap changing operations or slow response of tap changers. On the other hand, it seems promising to use PV inverter control to solve the problems when PV units are allowed to inject or absorb reactive power. In particular, there is a possibility that PV inverter control can contribute to VU problem even if they are connected with low voltage single phase networks. This paper proposed a comprehensive inverter control strategy consisting of both reactive power control and active power curtailment to improve the operation performance of VU in medium voltage distribution network with high penetration of residential PV systems by minimizing network losses and active power curtailment with voltage quality constraints. The effectiveness of the proposed method was evaluated in consideration of solar insolation level which affects active power generation of PVs.本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.139 No.1 （2019）本誌掲載ページ: 13-26 p原稿種別: 論文／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/139/1/139_13/_article/-char/ja/ Show more