事故前通電状態と事故後停電状態のTDR波形比較による架空配電系統の事故点標定

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: 2021/09/01

タイトル(英語): Fault Location in 6.6kV Overhead Distribution System by Comparing TDR Waveforms Before and After Failure

著者名: 竹谷　大輔（関西電力送配電（株）），笹岡　毅志（関西電力送配電（株）），加用　随縁（関西電力（株）），松嶋　徹（京都大学大学院工学研究科電気工学専攻），久門　尚史（京都大学大学院工学研究科電気工学専攻），和田　修己（京都大学大学院工学研究科電気工学専攻）

著者名(英語): Daisuke Taketani (Kansai Transmission and Distribution, Inc.), Tsuyoshi Sasaoka (Kansai Transmission and Distribution, Inc.), Zuien Kayo (Kansai Electric Power Co., Inc.), Tohlu Matsushima (Kyoto University), Takashi Hisakado (Kyoto University), Osami Wad

キーワード: 事故点標定，パルス波，TDR (Time Domain Reflectometry)，架空配電系統　　fault location，pulse wave，TDR (Time Domain Reflectometry)，overhead distribution system

要約(英語): The authors propose an effective method of fault location in overhead distribution system. In past studies, short pulse with high frequency injected into overhead distribution system can propagate through about 1km distance, but it has been a problem that pulse reflect at other than a fault point. In other words, it is necessary to find out a fault point from multiple reflected waves. In our proposed method, it is possible to extract a change of a fault point by comparing TDR (Time Domain Reflectometry) waveforms before and after failure. In this paper, we clarify theoretical concept and organize the algorithm of comparing TDR waveforms. Moreover we verify effectiveness of the proposed method by experiments in real-scale distribution system after confirming pulse transmission properties of section switch. The verification results show that the proposed method can locate a fault point (short-circuit fault or ground fault) with accuracy of tens of meters or less.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.141 No.9 （2021）

本誌掲載ページ: 590-596 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/141/9/141_590/_article/-char/ja/