UHF Partial Discharge Location Method Based on Time Delay Estimation of Linear Prediction Analysis

TIAN Yan; WANG Yong; YANG Sen; ZHOU Nan; LI Zhen

doi:10.13296/j.1001-1609.hva.2019.12.026

您当前的位置：

首页 >

文章列表页 >

UHF Partial Discharge Location Method Based on Time Delay Estimation of Linear Prediction Analysis

更新时间：2025-04-26

- UHF Partial Discharge Location Method Based on Time Delay Estimation of Linear Prediction Analysis
- High VoltageApparatus Vol. 55, Issue 12, Pages: 181-186(2019)
- 作者机构：
  
  1. 广州供电局有限公司电力试验研究院
  2. 上海交通大学电气工程系
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.12.026
  CLC： TM855
- Published：2019
- 稿件说明：
移动端阅览
[1]田妍,王勇,杨森,周南,李臻.基于线性预测分析时差估计的特高频局部放电定位方法[J].高压电器,2019,55(12):181-186.

TIAN Yan, WANG Yong, YANG Sen, et al. UHF Partial Discharge Location Method Based on Time Delay Estimation of Linear Prediction Analysis[J]. High voltageapparatus, 2019, 55(12): 181-186.
[1]田妍,王勇,杨森,周南,李臻.基于线性预测分析时差估计的特高频局部放电定位方法[J].高压电器,2019,55(12):181-186. DOI： 10.13296/j.1001-1609.hva.2019.12.026.

TIAN Yan, WANG Yong, YANG Sen, et al. UHF Partial Discharge Location Method Based on Time Delay Estimation of Linear Prediction Analysis[J]. High voltageapparatus, 2019, 55(12): 181-186. DOI： 10.13296/j.1001-1609.hva.2019.12.026.

摘要

基于特高频（UHF）信号的局部放电（PD）定位方法由于其对信号时差的计算误差较大

因此还未能在变电站中进行广泛的应用。文中提出了一种基于线性预测分析的时差估计方法

该算法首先对实际采集的特高频信号做预测分析

然后对预测误差应用幂定律以突显局放发生时刻

最后利用广义相关法进行时差估计。该方法能够以较高的精度计算信号时差

从而提高了局放定位的精度。实验结果表明

利用文中方法进行局放定位

定位距离误差可控制在1 m以下

方向角定位误差可控制在8°以下

证明了该方法的可行性。

Abstract

The localization of partial discharge（PD） based on ultra-high frequency（UHF）signals has not been widely used in substations due to the excessive localization error

which is mainly introduced by the error of time delay measurement.A novel time delay estimation method based on linear prediction analysis is proposed in this paper.Linear prediction analysis is carried out on the actual PD signals.The power law is applied to the prediction error to highlight the time of PD occurrence.Eventually

the generalized correlation algorithm is used to estimate the signal time delay.The proposed method could estimate the signal time delay with high precision

thus improving the accuracy of PD localization.Experiment results show that the localization distance error is less than 1 meter and the localization angel error is less than 8 degrees

which have proved the feasibility of this method.

关键词

Keywords

references

Views

136

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Error Analysis and Placement Optimization of Partial Discharge Location Based on UHF Sensors Array

UHF Location Method of GIS Partial Discharge Based on Equivalent Distance

Application of the GIS UHF Method for Partial Discharge On-line Monitoring

Typical Application of UHF Partial Discharge Detection in GIS

Application of Mobile UHF On-line Monitoring System to PD Detection of GIS

Related Author

XIONG Jun

HOU Huijuan

LI Guangmao

WU Xiaogui

CHEN Jingde

SHENG Gehao

HUANG Zhong

LIU Hui

Related Institution

Smart Grid Laboratory,Shanghai Jiao Tong University

Xi'an XD Switchgear Electric Co, Ltd

Shanghai ECOM Electronic Technology Co.,Ltd.

Zhuhai Power Supply Bureau,Guangdong Power Grid

State Grid Material Corporation Limited

⁰