北陸地域における配電線雷撃の季節特性

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: 2021/02/01

タイトル(英語): Seasonal Characteristics of Lightning Strokes to Distribution Lines in Hokuriku Area

著者名: 金谷　賢一（北陸電力（株）技術開発研究所），松浦　進（北陸電力（株）技術開発研究所），新庄　一雄（北陸電力（株）技術開発研究所）

著者名(英語): Kenichi Kanatani (Engineering Research & Development Center, Hokuriku Electric Power Company), Susumu Matsuura (Engineering Research & Development Center, Hokuriku Electric Power Company), Kazuo Shinjo (Engineering Research & Development Center, Hokuriku

キーワード: 雷，配電線，直撃雷，冬季雷，雷害対策_x000D_　　lightning，distribution line，direct lightning stroke，winter lightning，lightning protection measures

要約(英語): The proportion of the lightning outages in all outages on 6.6kV overhead distribution lines is high with approximately 20 percent in Hokuriku area, and then the lightning protection is important to prevent the outages. Several evaluation methods of lightning protection measures of distribution lines have been proposed. However, the frequency of lightning strokes to distribution lines is not accurately considered in these methods, particularly in winter. In order to find out the actual frequency of lightning strokes to distribution lines, we have observed lightning channels using lightning-video cameras at Tonami plain in Hokuriku area. If a lightning channel is recorded by two or more video cameras located at different points, it is possible to locate a lightning stroke point by direction finding method. In this paper, we present the observation data of lightning channels recorded by the video cameras from November 2016 to October 2019. First, we evaluate the location errors of the video cameras. Then, since it is confirmed that the lightning stroke points can be accurately located by the video cameras, we estimate the frequency of lightning strokes to distribution lines by season from observation data.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.141 No.2 （2021） 特集：令和2年電力・エネルギー部門大会

本誌掲載ページ: 188-195 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/141/2/141_188/_article/-char/ja/