残留電圧のゆらぎによる部分放電発生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: 2016/12/01

タイトル(英語): Integral Equation for Analysis of Partial Discharge Pulses based on Residual Voltage Fluctuation

著者名: 野津　大二朗（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): Daijiro Nozu (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 proposes an integral equation to describe the stochastic fluctuation of partial discharge (PD) occurrence under sinusoidal voltage stress based on a simple PD model. In the model, the stochastic behavior of PD fluctuation is assumed to arise from the fluctuation of residual voltage after PD is build up across a discharge gap. For simplicity of calculation, the distribution of residual voltage is assumed to obey a normal distribution. Based on these assumptions, it is found that the proposed integral equation provides the basic characteristics such as the PD pulse distribution in applied voltage phase angle domain. The authors solved the equation with numerical method and showed several φ-n distribution patterns. The authors analyzed the relationship among φ-n distribution patterns and several discharge parameters such as partial discharge inception voltage, mean residual voltages and standard deviation of residual voltage, applied voltage.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.12 （2016） 特集：位相エンジニアリングに基づく超電導エレクトロニクスの最近の進展

本誌掲載ページ: 812-816 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/136/12/136_812/_article/-char/ja/