基于行波理论的配电线路漏电点检测与定位  

Detection and location of distribution line leakage points based on traveling wave theory

作　　者：涂志威 TU Zhiwei(Wuhan NARI Limited Liability Company of State Grid Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074

出　　处：《电子设计工程》2022年第8期82-85,90,共5页Electronic Design Engineering

摘　　要：在配电线路工作过程中,为了避免因出现线路漏电而引起电力事故,基于行波理论设计了一种配电线路漏电点检测与定位方法。该方法利用了小波变换与奇异性检测原理,根据线路振荡脉冲的波动情况检测配电线路中的漏电点。在此基础上,通过配电线路漏电点的检测数据实现对线路的漏电点特征的定位。实验结果表明,该方法的定位精准度较高,可以有效地缓解配电线路漏电问题。In order to avoid power accidents caused by leakage in the working process of distribution lines,a method for detection and location of leakage points in distribution lines is designed based on traveling wave theory.The method uses the principle of wavelet variation and singularity detection to detect the leakage points in distribution lines according to the fluctuation of line oscillating pulse.On this basis,through the distribution line leakage point detection data to realize the location of leakage point characteristics of the line.Experimental results show that the positioning accuracy of this method is high,which proves that it can effectively alleviate the leakage problem of distribution lines.

关 键 词：行波理论 配电线路 漏电点检测 漏电定位 

分 类 号：TM726[电气工程—电力系统及自动化]