非対称電極系における部分放電特性を表す積分方程式の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2019/03/01

タイトル(英語): Consideration of Integral Equation Representing PD Characteristics in Asymmetric Electrode System

著者名: 山川　湖南（東北大学工学研究科），八島　政史（東北大学工学研究科），岡本　達希（東北大学工学研究科）

著者名(英語): Konan Yamakawa (Graduate School of Engineering, Tohoku University), Masafumi Yashima (Graduate School of Engineering, Tohoku University), Tatsuki Okamoto (Graduate School of Engineering, Tohoku University)

キーワード: 部分放電，絶縁劣化診断，積分方程式　　partial discharge，insulation degradation diagnosis，integral equation

要約(英語): This paper describes an integral equation to calculate the stochastic fluctuation of partial discharge (PD) occurrence under sinusoidal voltage stress based on a simple PD model. For the simplicity of calculation we used a symmetric PD model for positive and negative PD characteristics with measurements of a symmetric electrode system. In this paper we made a progress in calculation using asymmetric PD characteristics using different PD parameters for positive and negative PDs. The stochastic behavior of PD fluctuation is assumed to arise from the fluctuation of PD delay time after the inception voltage and the fluctuation of PD inception voltage (PDIV) as before but different parameters for positive and negative ones. The authors solved the equation with numerical method and showed several φ-n, φ-q distribution patterns as before but more realistic characteristics.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.139 No.3 （2019） 特集：放電研究の最新動向

本誌掲載ページ: 174-180 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/ieejfms/139/3/139_174/_article/-char/ja/