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■論文No. |
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■ページ数 |
8ページ |
■発行日
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2019/03/01 |
■タイトル |
配電系統の切替や変化を考慮したPV進み定力率値の選定 |
■タイトル(英語) |
Choice of PV's Favorable Constant Leading Power Factor Considering Temporary Structure and Metamorphosis of Distribution Network |
■著者名 |
中崎 陽介(北陸電力(株)石川送配電支社 七尾配電・サービス部),駒見 慎太郎(元 北陸電力(株)技術開発研究所) |
■著者名(英語) |
Yohsuke Nakazaki (Nanao Distribution-Service Department, Ishikawa Trans-mission Distribution Branch Office, Hokuriku Electric Power Company), Shintaro Komami (Engineering Research & Development Center, Hokuriku Electric Power Company) |
■価格 |
会員 ¥550 一般 ¥770 |
■書籍種類 |
論文誌(論文単位) |
■グループ名 |
【B】電力・エネルギー部門 |
■本誌 |
電気学会論文誌B(電力・エネルギー部門誌) Vol.139 No.3 (2019)
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■本誌掲載ページ |
170-177ページ |
■原稿種別 |
論文/日本語 |
■電子版へのリンク |
https://www.jstage.jst.go.jp/article/ieejpes/139/3/139_170/_article/-char/ja/
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■キーワード |
太陽光発電,配電網,電圧上昇,特別高圧,ベクトルLDC,進み定力率運転 photovoltaic,distribution network,voltage rise,HV (high voltage),vector-LDC,constant leading power factor operation |
■要約(日本語) |
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■要約(英語) |
Since high penetration of photovoltaic (PV) power generation has realized, vector-LDC tap control on distribution transformer and constant leading power factor operation of PV are becoming recognized as hopeful mitigation methods for voltage deviation due to PV output fluctuation. Although the authors had proposed those two methods, various structures of distribution system were not considered. If number of feeders under one distribution transformer is changed by such as temporary network structure or demand growing process, optimal leading power factor of PV must be changed. Since vector-LDCs are owned by network company and their number is small, their setting can be changed easily. However, PVs are owned by customers and their number is large, so change of their power factor setting is not so easy. Then, how uniform PV power factor should be chosen?The paper considers two distribution system structures: 5 feeders under a distribution transformer, and 1 feeder under a distribution transformer. In the former case optimal PV power factor is around Q =-0.2P, and in the latter case it is around Q =-0.4P. Four cases by the two system structures and the two PV power factors are examined, when slow or fast PV output change is given, using “CRIEPI V method” simulation tool.As the result, only “5 feeders under a distribution transformer with PV operation at Q =-0.4P case” has shown ill voltage regulation caused by over compensation on reactive power control. Thus, light constant leading power factor around Q =-0.2P is proven as favorable for PVs, even when temporary structure or demand growing process are considered. |
■版 型 |
A4 |
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