アナログ信号処理を用いた配電線用微小放電位置標定装置の開発

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: 2012/03/01

タイトル(英語): Development of Micro Discharge Locator for Distribution Line using Analogue Signal Processing

著者名: 熊澤　孝夫（中部電力（株）技術開発本部 エネルギー応用研究所），岡　富士男（三井造船（株）機械・システム事業本部）

著者名(英語): Takao Kumazawa (Energy Applications R&D Center, Chubu Electric Power Co., Inc.), Fujio Oka (Mechatronics Center, Mitsui Engineering & Shipbuilding Co., Ltd.)

キーワード: 微小放電，火花放電，部分放電，電磁パルス，アナログ信号処理，到来方向推定　　micro discharge，spark discharge，partial discharge，electromagnetic pulse，analogue signal processing，DOA estimation

要約(英語): Micro discharges (MDs) such as spark or partial discharges on distribution lines, which occur by degradation of insulators, insulated wires, bushings, etc., may cause television interference or ground fault. A technique for locating MDs using differences in arrival time of electromagnetic pulses radiated from the MDs has been investigated recently. However, the technique requires a large and expensive apparatus such as a digital storage oscilloscope able to record the received pulse signals very fast. We investigated a new technique to estimate the direction of arrival (DOA) of the electromagnetic pulses using analogue signal processing, and produced a prototype of a MD locator. In order to evaluate the estimation error of DOA, we performed several experiments to locate spark discharges about 50nC/pulse on testing distribution line by using the MD locator. The average estimation error was about 5 degree, and the error of azimuth was several times larger than that of elevation in most cases. This reason is considered that resolving power of azimuth became lower than that of elevation owing to configuration of receiving antennas. We also tried to locate MDs on real distribution lines, and confirmed that there was no significant influence of reflected or carrier waves on DOA estimation.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.132 No.3 （2012）

本誌掲載ページ: 268-275 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/132/3/132_3_268/_article/-char/ja/