高低圧PV混在配電線のVolt-var制御による無効電力出力とSVR動作の適正化

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: 2023/05/01

タイトル(英語): Optimization of SVR Tap Operation and Reactive Power Control by Applying Volt-var Control for Distribution Lines with Mixed Medium-Voltage PV and Low-Voltage PV

著者名: 山下　裕輔（早稲田大学 先進理工学研究科），児玉　安広（早稲田大学 スマート社会技術融合研究機構），林　泰弘（早稲田大学 先進理工学研究科），村下　直久（（株）東光高岳）

著者名(英語): Yusuke Yamashita (School of Advanced Science and Engineering, Waseda University), Yasuhiro Kodama (Waseda University), Yasuhiro Hayashi (School of Advanced Science and Engineering, Waseda University), Naohisa Murashita (TAKAOKA TOKO CO., LTD.)

キーワード: Volt-var制御，スマートインバータ，配電系統，SVR，電圧制御　　Volt-var control，smart inverter，distribution system，SVR，voltage control

要約(英語): The voltage fluctuations that occur locally in the distribution system caused by high penetration of photovoltaic (PV) power generation based on the carbon neutrality strategy have been regarded as one of the serious operational problems. Assuming that larger amount of PV power sources will be connected in the future distribution system, Volt-var control of PV smart inverters is expected. This will enable more flexible and effective voltage control support by provide custom var response. The authors have investigated the effective voltage control of coordination between tap operation of Step Voltage Regulator (SVR) and Volt-var control of PV smart inverters. In our previous studies, we proposed a Volt-var curve determination method for MW-large-scale PV smart inverters connected to medium-voltage to decrease SVR tap operations and minimize distribution losses. However, there are uncertainties such as PV outputs and loads of low-voltage consumers that cannot be completely and individually determined from the measurements of medium-voltage PV smart inverters. In this study, using a detailed distribution line model that reflects actual power measurement datasets of individual low-voltage customers, effects of reduction in distribution losses, reduction in the number of SVR tap operations, and changes in cumulative reactive power output sharing of PV inverters are evaluated through simulation studies to confirm the effectiveness of the proposed Volt-var setting method.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.143 No.5 （2023）

本誌掲載ページ: 270-281 p

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/143/5/143_270/_article/-char/ja/