Single-phase grounding fault location based on phase relation between multi-modulus traveling waves for transmission line

CHENG Menghan; CHU Ning; LIANG Rui; PENG Nan

doi:10.16081/j.issn.1006-6047.2018.10.027

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Single-phase grounding fault location based on phase relation between multi-modulus traveling waves for transmission line

更新时间：2025-04-25

- Single-phase grounding fault location based on phase relation between multi-modulus traveling waves for transmission line
- Vol. 38, Issue 10, Pages: 172-177(2018)
- 作者机构：
  
  1. 中国矿业大学电气与动力工程学院
  2. 2. 江苏省煤矿电气与自动化工程实验室
- 作者简介：
- 基金信息：
- DOI：10.16081/j.issn.1006-6047.2018.10.027
  CLC： TM755
- Published：2018
- 稿件说明：
移动端阅览
[1]程孟晗,褚宁,梁睿,彭楠.基于多模量行波分量相位关系的输电线路单相接地故障定位[J].电力自动化设备,2018,38(10):172-177.

CHENG Menghan, CHU Ning, LIANG Rui, et al. Single-phase grounding fault location based on phase relation between multi-modulus traveling waves for transmission line[J]. 2018, 38(10): 172-177.
[1]程孟晗,褚宁,梁睿,彭楠.基于多模量行波分量相位关系的输电线路单相接地故障定位[J].电力自动化设备,2018,38(10):172-177. DOI： 10.16081/j.issn.1006-6047.2018.10.027.

CHENG Menghan, CHU Ning, LIANG Rui, et al. Single-phase grounding fault location based on phase relation between multi-modulus traveling waves for transmission line[J]. 2018, 38(10): 172-177. DOI： 10.16081/j.issn.1006-6047.2018.10.027.

摘要

为了充分利用模量行波首波头相位信息

克服传统模量行波首波头辨识方法的误差

基于模量行波在输电线路上传播时的畸变特性和色散效应

提出利用双端测量点零模和线模电压行波首波头中同一高频分量相位关系进行单相接地故障定位。所提方法无需双端精确同步

也不依赖于模量行波到达时刻和波速信息。利用PSCAD搭建输电线路模型并进行故障仿真

仿真结果表明了所提方法的有效性与可靠性。

Abstract

In order to make full use of the phase information of initial modulus traveling wave and overcome the error of traditional initial modulus traveling wave front identification method

a single-phase grounding fault location method is proposed based on the distortion characteristics and dispersion effect of the modulus traveling wave propagating on the transmission line

which locates single-phase grounding fault by using the phase relation between the same high-frequency components of initial zero-mode and aerial-mode voltage traveling waves at two-terminal measuring points. The proposed method does not require accurate synchronization at both terminals

nor does it depend on the arrival time of the modulus traveling waves and wave velocity information. The transmission line model is built on PSCAD and the simulation is carried out. The simulative results show the effectiveness and reliability of the proposed method.

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