Study of PD Location Based on the UHF Method

ZHAO Xiao-hui; YANG Jing-gang; LU Xiu-li; YUAN Peng; LI Yan-ming

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Study of PD Location Based on the UHF Method

更新时间：2025-04-26

- Study of PD Location Based on the UHF Method
- High VoltageApparatus Issue 4, Pages: 370-373(2008)
- 作者机构：
  
  西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM85
- Published：2008
- 稿件说明：
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[1]赵晓辉,杨景刚,路秀丽,袁鹏,李彦明.基于超高频法的局部放电定位初步研究[J].高压电器,2008(04):370-373.

ZHAO Xiao-hui, YANG Jing-gang, LU Xiu-li, et al. Study of PD Location Based on the UHF Method[J]. High voltageapparatus, 2008, (4): 370-373.
[1]赵晓辉,杨景刚,路秀丽,袁鹏,李彦明.基于超高频法的局部放电定位初步研究[J].高压电器,2008(04):370-373. DOI：

ZHAO Xiao-hui, YANG Jing-gang, LU Xiu-li, et al. Study of PD Location Based on the UHF Method[J]. High voltageapparatus, 2008, (4): 370-373. DOI：

摘要

为了快速准确地对局部放电源定位

从而迅速排除故障、保障电力系统的正常运行

笔者描述了基于到达时间差定位的原理

并分析了影响定位精度的因素

即时差测量、局放源相对于各个接收天线的位置以及传播速度v等的影响。介绍了以信号初始峰、累积能量曲线的拐点、基本相关性以及三次样条插值和相关性相结合的方法为基准读取时间差的4种方法

通过比较分析得出利用三次样条插值和相关性相结合的方法为基准读取的时间差最接近理论时差。最后利用模拟退火法计算出了放电源的位置

实现了对单一局放源的定位。

Abstract

In order to rapidly and accurately locate partial discharge source for getting rid of trouble and protecting normal operation of the power system

the principle of PD source location based on the time delay of arrival is discussed.The influencing factors of location accuracy are analyzed

including TDOA

the distances between PD source and sensors

and the velocity of electromagnetic waves.Four methods for acquiring TDOA are introduced and compared

including the initial peak method

the inflexion of cumulative energy curve method

the basic correlation method

and the method combining interpolation of cubic spline with correlation analysis.The results show that the last method can achieve high precision.At last

the location of PD source is calculated using simulated annealing algorithm.

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Related Author

LI Da-jian1

LIANG Ji-zhong1

BU Ke-wei2

YANG Jing-gang1

LI Yan-ming1

LU Zhumao

YU Hua

ZHANG Chao

Related Institution

School of Electrical Engineering, Xi’an Jiaotong University

Measurement Center of Haidong Supply Company

Institute of Electrical Engineering Chinese Academy of Sciences

School of Electronic, Electrical and Communication Engineering University of Chinese Academy of Sciences

State Grid Shanxi Electric Power Company Electric Power Research Institute

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