摘要
从多方面分析了电力电缆故障产生原因和分类,介绍了目前常用的基于行波理论电力电缆故障行波测距方法,且指出行波测距所面临的一些问题。同时,还介绍了一些当前比较新颖的基于行波的电缆故障在线测距方法,如将小波变换、相模变换等数学方法应用于行波的分析中等等可以有效的解决波头辨识、反射波识别等问题的方法。
The reasons and classifications of the faults of power cables are analyzed. The fault location by travelling waves for power cables in common use is presented. And then points out some problems in fault location by travelling waves. At the same time, several novel online fault locations based on travelling waves are presented, such as wavelet transform, phase - modulus transfom and so on. These math methods applied on analysis will effectively deal with the distinguishing of the head of wave and the distinguishing of reflection and the like problems.
出处
《电气开关》
2008年第5期53-55,68,共4页
Electric Switchgear
关键词
电力电缆故障
行波
测距方法
power cable fault
travelling waves ,fault location
