基于高频电流电磁耦合法的XLPE电缆局部放电测量分析  

PD Measurement and Analysis of XLPE Cable Based on Electromagnetic Coupling Method of High-Frequency Current

作　　者：陈智勇[1] 许飞[2] 戴洪宾 

机构地区：[1]广西电网公司电力科学研究院,南宁530023 [2]广西电网公司,南宁530023 [3]北京兴迪仪器有限责任公司,北京100085

出　　处：《广西电力》2012年第4期15-18,共4页Guangxi Electric Power

摘　　要：通过归纳电缆局部放电测量信号的各种干扰源及放电信号基本特征,分析局部放电测量中信号识别方法的放电相位图谱、信号频谱特性、信号幅特性以及信号分离技术,提出了一种基于高频电流电磁耦合法的局放带电测试方法。该法结合计算机辅助分析手段,利用现有局部放电研究成果和经验,可提高局放测量中对信号进行正确分析和判别的能力。应用该方法对某电缆线路开展测试工作,并分离出局部放电信号。A PD measurement method based on the electromagnetic coupling method of high-frequency current is proposed by summarizing basic characteristics of different disturbing sources and discharge signals, and analyzing discharge phase diagrams, signal spectrum characteristics, signal amplitude characteristics and signal separation technologies of signal identification method in PD measurement. The proposed method which combines the computer assistant analysis and uses results and experiences in PD study can improve the analysis and judgment ability in PD measurement. The proposed method has been applied in a XLPE cable PD measurement work and the PD signal has been separated.

关 键 词：局部放电 XLPE电缆 干扰信号 信号分离 

分 类 号：TM726.4[电气工程—电力系统及自动化]