摘要
研究电晕放电信号可以为大型电力变压器的局部放电在线监测和实现有效的气体绝缘系统(GIS)放电性故障监测提供重要的理论依据,而电晕放电信号是一种突变信号,必须选择合适的方法来对其进行研究。本文综述了国内外学者以小波变换为基础对电晕放电信号分析的方法,从中得出基于小波变换对电晕放电信号分析的几种方法。
Studying the corona discharge signals can provide important theories basis for on-line monitoring of large electric power transformer＇ spartial discharge and breakdown monitoring of Gas-Insulated System （GIS） discharge, but the corona discharge signal is a kind of transient signal, so it must choose a fit method to analyze the corona discharge signal. A few methods to analyze the corona discharge signals by wavelet transform is got on the basis of the domestic and international scholars who studied the corona discharge signals by wavelet transform.
出处
《电气应用》
北大核心
2006年第10期37-40,共4页
Electrotechnical Application
基金
国家自然科学基金重点项目50237040
军械工程学院科研基金项目YJJXM0424资助
关键词
电晕放电
小波分析
降噪
噪声
corona discharge
wavelet analysis
denoise
noise
