XLPE电力电缆局部放电信号识别法及其关键技术  

Partial Discharge Signal Identification Methods and Key Technique of XLPE Power Cables

作　　者：张周胜[1] 马爱清[1] 

机构地区：[1]上海电力学院电力与自动化工程学院,上海200090

出　　处：《上海电力学院学报》2012年第4期301-304,308,共5页Journal of Shanghai University of Electric Power

基　　金：上海市教育委员会重点学科建设项目(J51303)

摘　　要：分析了当今交联聚乙烯(cross-linked polyethylene,XLPE)电力电缆局部放电信号识别的几种主要方法的优缺点及其适用条件,以及相位分辨数据统计法的局限性.并对基于等效带宽-等效时间长度的簇分离方法的应用有效性的关键技术进行了剖析,对该方法的进一步研究及局部放电在线测量的应用提出了建议.Several present signal identification techniques for partial discharge signal （PDs） of XLPE cables are analyzed, namely, their advantages and disadvantages and their application range. Moreover, limitations of the phase-based statistic technique are interpreted in detail. Cluster classification technique based on the equivalent bandwidth-equivalent time length（W-T） is likely to develop in a desirable manner for PDs identification. The important aspects of this technique are analyzed, which may offer reference for further study of this technique and for the on-line PD measurement.

关 键 词：局部放电 信号识别 等效带宽 等效时间长度 簇分类 脉冲波形 

分 类 号：TM247[一般工业技术—材料科学与工程] TN911.7[电气工程—电工理论与新技术]