太陽光発電システムの接地方式が雷撃時に直流配線に発生する過電圧へ与える影響

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: 2013/10/01

タイトル(英語): Influence of Grounding Systems on Overvoltages Appearing on DC Wirings of Photovoltaic Power Generation System

著者名: 酒井　重嘉（明治大学大学院理工学研究科電気工学専攻／（株）関電工），廣井　英幸（（株）関電工），榊原　宏行（（株）関電工），山本　和男（中部大学工学部電気システム工学科）

著者名(英語): Kazuyoshi Sakai (Graduate School of Science and Technology, Meiji University/Kandenko Co., ltd.), Hideyuki Hiroi (Kandenko Co., ltd.), Hiroyuki Sakakibara (Kandenko Co., ltd.), Kazuo Yamamoto (Department of Electrical Engineering, Chubu University)

キーワード: 太陽光発電システム，雷，直流配線，過電圧，接地方式　　photovoltaic power generation system，lightning，DC wiring，overvoltages，grounding system

要約(英語): Photovoltaic generation is eco-friendly to utilize solar energy. The photovoltaic power systems have become widely used as clean energy power plants which are constructed on small spaces such as roofs of general houses and buildings. Due to such particular installation locations that there is almost no interrupter for direct lightning strokes and electromagnetic waves radiated from lightning, the number of malfunctions and breakdowns caused by the direct or induced lightning may increase. In this study, overvoltages generated by a lightning strike to a frame of a photovoltaic array are measured at an actual power plant. As a result, it is confirmed that the overvoltage between a power line and the ground has been caused by grounding potential rise of the photovoltaic power system, and that between two DC power lines has been caused by electrostatic and electromagnetic inductions. From those results, the levels of overvoltages are discussed.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.133 No.10 （2013）

本誌掲載ページ: 777-784 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/133/10/133_777/_article/-char/ja/