Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems

Baowen Liu; Hongzhong Ma; Honghua Xu; Ping Ju

doi:10.17775/CSEEJPES.2016.00740

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Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems

Regular Papers | 更新时间：2025-12-18

- Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems
- Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems
- 中国电机工程学会电力与能源系统学报(英文) 2019年5卷第1期页码：139-147
- 作者机构：
  
  1. Hohai University,,, CN,Jiangsu,Nanjing
  2. State Grid Jiangsu Electric Power Company Nanjing Power Supply Company,Nanjing,China,210008
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2016.00740
  中图分类号：
- 纸质出版：2019
- 稿件说明：
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Baowen Liu, Hongzhong Ma, Honghua Xu, 等. Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2019,5(1):139-147.

Baowen Liu, Hongzhong Ma, Honghua Xu, et al. Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems[J]. CSEE Journal of Power and Energy Systems, 2019, 5(1): 139-147.
Baowen Liu, Hongzhong Ma, Honghua Xu, 等. Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2019,5(1):139-147. DOI： 10.17775/CSEEJPES.2016.00740.

Baowen Liu, Hongzhong Ma, Honghua Xu, et al. Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems[J]. CSEE Journal of Power and Energy Systems, 2019, 5(1): 139-147. DOI： 10.17775/CSEEJPES.2016.00740.

摘要

Abstract

The fast and accurate detection of the single-phase-to-ground fault is of great significance for the reliability and safety of the power supply. In this paper

novel algorithms for distribution network protection were proposed with distributed parameters analysis in non-direct grounded systems. At first

novel generating mechanisms of zero-sequence voltage and residual current were proposed. Then the compositions of residue parameters

including residual current and residual admittances

were decomposed in detail. After that

an improved algorithm for a fault resistance calculation of a single phase-to-earth fault was also proposed

and the algorithm is much more convenient as it only needs to measure the variation of the zero-sequence voltage and does not need the prerequisites of the faulty feeder selection. Furthermore

the fault feeder can also be selected by an improved calculation algorithm of zero-sequence admittance of the faulty feeder

which cannot be affected by the asymmetry of the network. Theoretical analysis and the MATLAB/Simulink simulation results demonstrate the effectiveness of the proposed algorithms.

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