風車塔脚部における雷電流分流様相

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: 2011/07/01

タイトル(英語): A Study of Lightning Current Distribution at a Wind Turbine Foot

著者名: 山本　和男（神戸市立工業高等専門学校 電気工学科），植田　直哉（同志社大学 理工学部），雨谷　昭弘（同志社大学 理工学部），夏野　大輔（(株) 東洋設計）

著者名(英語): Kazuo Yamamoto (Department of Electrical Engineering, Kobe City College of Technology), Naoya Ueda (Faculty of Science and Engineering, Doshisha University), Akihiro Ametani (Faculty of Science and Engineering, Doshisha University), Daisuke Natsuno (Toyo Sekkei Co. Ltd.)

キーワード: 雷電流，観測，ロゴスキーコイル，風力発電システム，FDTD法　　lightning current，observation，Rogowski coil，wind turbine generator system，FDTD method

要約(英語): A Rogowski coil, used for measuring lightning current through a wind turbine generator system, is generally set up at the foot of a tower. In most wind turbines, there is an entrance at the foot of the tower, which leads to a flight of stairs or a ladder. When lightning strikes the wind turbine, the lightning current flows to the ground through the blades, nacelle, and tower. The current is shunted to the tower and the stairs/ladder at the foot of the tower, from where it may flow into the foundation and the earth. A Rogowski coil is usually set up at only the foot of a tower. The lightning current shunted to the stairs/ladder cannot be measured using the Rogowski. The installation position of the Rogowski coil depends on the construction of the stairs/ladder. In this study, the lightning current distribution at the foot of a tower is calculated using the FDTD (Finite Difference Time Domain) method, which is one of methods used for numerical analyses of electromagnetic fields. We also studied the effect that the setup of the stairs/ladder and the resistivity of the ground have on the lightning current distribution. The results of the current distribution are very important for predicting the total current that flows through an existing wind turbine generator system.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.131 No.7 （2011）

本誌掲載ページ: 602-608 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/131/7/131_7_602/_article/-char/ja/