部分放電波形の特徴量に基づく絶縁体表面の抵抗率変化の推定に関する基礎検討

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: 2022/12/01

タイトル(英語): Fundamental Study for Assessment of Surface Resistivity Based on Waveform Characteristics of Partial Discharge

著者名: 川島　朋裕（豊橋技術科学大学 電気・電子情報工学系），蛭川　泰丞（豊橋技術科学大学 電気・電子情報工学系），吉川　敢大（豊橋技術科学大学 電気・電子情報工学系），村上　義信（豊橋技術科学大学 電気・電子情報工学系），穂積　直裕（豊橋技術科学大学 電気・電子情報工学系）

著者名(英語): Tomohiro Kawashima (Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology), Taisuke Hirukawa (Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology), Kanta Yoshikawa (Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology), Yoshinobu Murakami (Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology), Naohiro Hozumi (Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology)

キーワード: 部分放電，波形特徴量，表面抵抗率，等価回路モデル_x000D_　　partial discharge，waveform characteristics，surface resistivity，equivalent circuit model

要約(英語): The partial discharge (PD) waveform reflects the evolution process of electron avalanche in the discharge space. The authors expect to estimate the condition of the discharge space based on the PD waveform characteristics. The semi-conductive sheet was attached to the insulator to simulate the decrease in surface resistance due to deterioration. With the reduction of the surface resistivity, the shoulder appeared on the rising part of the PD waveform and the rise time of the PD waveform became longer. In addition, we simulated the change in the rise time using an equivalent circuit model. The displacement current was calculated from the surface potential distribution estimated by the diffusion equation, and the PD current was simulated by summing up all the current components. As a result, the shoulder was reproduced at the rising part of the PD waveform in the simulation as well. The surface resistance was estimated from the PD waveform by fitting with the experimental results.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.142 No.12 （2022） 特集：放電・プラズマ・パルスパワー研究の最新動向

本誌掲載ページ: 440-445 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/142/12/142_440/_article/-char/ja/