高压电器2011，Vol.47Issue(2)：27-30,4.
利用泄漏电流分帧与小波技术识别覆冰绝缘子闪络故障
Recognition of Flashover Fault on the Iced Insulator Based on Frame Segmentation and Wavelet Technology for Leakage Current
摘要
Abstract
The traditional leakage current's time-frequency analysis method has some insufficiencies. Through dynamic measuring leakage current on the 3-piece string iced insulators at ice-melting stage in artificial climate chamber, this paper proposed that uses frame segmentation method to calculate the reference values :the extreme value of short-time energy signal and zero-cross signal. Through using wavelet decomposition reconstructing the envelope curves of energy signal and zero-cross signal, provides early warning for iced insulators flashover fault from both data and curve aspects.关键词
覆冰绝缘子/放电/闪络/分帧/小波/预警Key words
iced insulator/ discharge/ flashover/ frame segmentation/ wavelet/ early warning分类
信息技术与安全科学引用本文复制引用
李毅,周野,钟浩,吴政球,胡向阳,聂云,李建奇..利用泄漏电流分帧与小波技术识别覆冰绝缘子闪络故障[J].高压电器,2011,47(2):27-30,4.基金项目
湖南省科技厅工业支撑计划项目(2010GK3190):湖南省科技厅重点项目(2008FJ2004). （2010GK3190）
