電力用コンデンサの内部構造に考慮した音響法による部分放電位置標定法の検討

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: 2016/06/01

タイトル(英語): Investigation of Partial Discharge Localization Method Considering Internal Structure of Static Capacitor by Acoustic Emission Method

著者名: 倉石　隆志（（一財）電力中央研究所電力技術研究所高電圧・絶縁領域），宮嵜　悟（（一財）電力中央研究所電力技術研究所高電圧・絶縁領域），高橋　俊裕（（一財）電力中央研究所電力技術研究所高電圧・絶縁領域），加藤　理（電源開発（株）技術開発部茅ヶ崎研究所発変電・系統技術研究室）

著者名(英語): Takashi Kuraishi (Sector, High-voltage Insulation, Electric Power Engineering Research Laboratory, Central Research Instutute of Electric Power Industry), Satoru Miyazaki (Sector, High-voltage Insulation, Electric Power Engineering Research Laboratory, Central Research Instutute of Electric Power Industry), Toshihiro Takahashi (Sector, High-voltage Insulation, Electric Power Engineering Research Laboratory, Central Research Instutute of Electric Power Industry), Osamu Kato (Power System Engineering Laboratory, Chigasaki Research Instutute, Research Development Dept., Electric Power Development Co., Ltd.)

キーワード: 電力用コンデンサ，部分放電，AE法，位置標定　　static capacitor，partial discharge，AE method，localization

要約(英語): About 50% of the high-voltage (HV) static capacitors (SC) have been operating for more than 30 years by the beginning of the 2010s. Most of them are oil-immersed paper capacitors. For their efficient maintenance and management, it is necessary to establish an on-site partial-discharge (PD) diagnosis of the capacitors. In this paper, acoustic emission (AE) method is selected from the view point of PD detection sensitivity for SC and applicability for the on-site PD diagnosis without any interruption for continuous SC operation. PD localization technique for SC using plural AE sensors is developed in this paper. PD localization method utilizing information of internal structure of SC is proposed to improve the accuracy of PD localization by AE sensors in concrete terms. This proposed method applied to PD test for an aged SC operated for 48 years and removed from the actual substation. A number of carbonizations formed by PD were found inside the aged SC at the dismantled test after the PD test. Then, As compared with the accuracy of proposed PD localization method and traditional one, accuracy of proposed one improves by 60% to the traditional one.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.136 No.6 （2016）

本誌掲載ページ: 569-576 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/136/6/136_569/_article/-char/ja/