分岐線を有しない配電線の共同接地線を用いた断線点推定手法

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: 2021/08/01

タイトル(英語): Estimation Method of Disconnection Point Using Common Earthing Conductor for Distribution Line Without Branch Line

著者名: 児玉　安広（早稲田大学 スマート社会技術融合研究機構 先進グリッド技術研究所），林　泰弘（早稲田大学 スマート社会技術融合研究機構 先進グリッド技術研究所），西田　悠介（東京電力ホールディング（株）経営技術戦略研究所 研究総括室 企画戦略Ｇ 兼 技術統括室）

著者名(英語): Yasuhiro Kodama (Advanced Collaborative Research Organization for Smart Society Research Institute for Advanced Network Technology), Yasuhiro Hayashi (Advanced Collaborative Research Organization for Smart Society Research Institute for Advanced Network T

キーワード: 配電線，断線点推定，共同接地線　　distribution line，disconnection point estimation，common earthing conductor

要約(英語): When a disconnection occurs in the high-voltage distribution line, the conductor of the wire contacts the ground belt, resulting in a ground fault accident. In the case where the conductor of the electric wire is covered with a coating, a ground fault accident does not occur even if it contacts the ground belt. Under such a situation, it is not possible to grasp the disconnection of the distribution line. Studies using a smart meter have been conducted to specify the disconnection point of the distribution line. In order to specify the disconnection point using the smart meter, it is necessary to install a large number of smart meters on the distribution line. The authors propose a method which can inexpensively locate disconnection points of power equipment to areas where it is difficult to install many smart meters or to emerging countries where power facilities are to be constructed in the future. In this method, only the ground wire at the end of the two distribution lines is connected, and the disconnection point is specified from the time difference of the zero crossing point of the current flowing at the rising of the common ground line of the two distribution lines at the time of disconnection. In this method, disconnection points can be specified by installing a current measuring device on the common ground line of the rising edge of the distribution line, resulting in an inexpensive system.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.141 No.8 （2021）

本誌掲載ページ: 559-567 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/141/8/141_559/_article/-char/ja/