高圧連系PVシステムのPCS空き容量を活用した無効電力補償の検討

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: 2019/02/01

タイトル(英語): Study on Reactive Power Compensation using Available Capacity of PCS of PV Systems in High Voltage Distribution Network

著者名: 高木　雅昭（（一財）電力中央研究所 エネルギーイノベーション創発センター），田頭　直人（（一財）電力中央研究所 社会経済研究所），関澤　学（東北電力（株）研究開発センター）

著者名(英語): Masaaki Takagi (Energy Innovation Center, Central Research Institute of Electric Power Industry), Naoto Tagashira (Socio-economic Research Center, Central Research Institute of Electric Power Industry), Manabu Sekizawa (Research and Development Center, Tohoku Electric Power Co., Inc.)

キーワード: 太陽光発電，電圧上昇，無効電力，力率一定制御，力率可変制御　　PV，voltage rise，reactive power，constant power factor control，variable power factor control

要約(英語): The installed capacity of photovoltaic (PV) systems has been increasing rapidly due to the enforcement of the feed-in tariff scheme in Japan. However, reverse power flows from PV systems cause voltage rise in distribution networks. As one of the ways to avoid voltage rise, there is a constant power factor control by Power Conditioning Subsystem of PV (PV-PCS). In long-distance distribution networks, however, constant power factor control could cause voltage drop; in addition, rapid load changes cause voltage fluctuation problems. Static Var Compensator (SVC) can solve these problems, but it is high cost. Therefore, it is more economical to use PV-PCS than to install SVC. In this paper, we propose variable power factor control and reactive power compensation using available capacity of PV-PCS. While the variable power factor control maximizes PV power generation for PV owners, the available capacity of PV-PCS supplies reactive power to suppress voltage fluctuations, which is equivalent to SVC for electric utilities. The result shows that the variable power factor control can increases PV power generation more than constant power factor control. We clarified a range of available capacity of PV-PCS to supply reactive power that generates a Win-Win situation for PV owners and electric utilities.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.139 No.2 （2019） 特集：平成30年電力・エネルギー部門大会

本誌掲載ページ: 66-73 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/139/2/139_66/_article/-char/ja/