Detection and Location Method of Single-phase-to-ground Fault in Distribution Network Based on Zero-sequence Transient Fault Component

LI Lin; GAO Houlei; YUAN Tong; PENG Fang

doi:10.7500/AEPS20240417002

您当前的位置：

首页 >

文章列表页 >

Detection and Location Method of Single-phase-to-ground Fault in Distribution Network Based on Zero-sequence Transient Fault Component

Application Research | 更新时间：2025-08-05

- Detection and Location Method of Single-phase-to-ground Fault in Distribution Network Based on Zero-sequence Transient Fault Component
- Automation of Electric Power Systems Vol. 49, Issue 15, Pages: 157-167(2025)
- 作者机构：
  
  山东大学电气工程学院，山东省济南市 250061
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(52277109)
- DOI：10.7500/AEPS20240417002
  CLC：
- Received：17 April 2024，
  
  Revised：2024-11-07，
  
  Published Online：14 January 2025，
  
  Published：10 August 2025
- 稿件说明：
移动端阅览
李林,高厚磊,袁通等.基于零序突变量的配电网单相接地故障检测与定位方法[J].电力系统自动化,2025,49(15):157-167.

LI Lin,GAO Houlei,YUAN Tong,et al.Detection and Location Method of Single-phase-to-ground Fault in Distribution Network Based on Zero-sequence Transient Fault Component[J].Automation of Electric Power Systems,2025,49(15):157-167.
李林,高厚磊,袁通等.基于零序突变量的配电网单相接地故障检测与定位方法[J].电力系统自动化,2025,49(15):157-167. DOI： 10.7500/AEPS20240417002.

LI Lin,GAO Houlei,YUAN Tong,et al.Detection and Location Method of Single-phase-to-ground Fault in Distribution Network Based on Zero-sequence Transient Fault Component[J].Automation of Electric Power Systems,2025,49(15):157-167. DOI： 10.7500/AEPS20240417002.

摘要

配电网单相接地故障特征微弱且受中性点接地方式影响，现有故障检测和定位方法的可靠性和灵敏度不足。首先，文中对中性点不接地、谐振接地和经小电阻接地配电网的接地故障零序网络进行了简化

分析了不同接地方式下配电网单相接地故障的零序故障特征

推导出了故障点上游与健全线路的零序电流和零序电压之间的关系及特征差异；其次，定义了能反映故障前后特征差异的零序突变量，提出了基于离散数值积分的零序突变量计算方法以及基于最小二乘法的优化修正方法，可以减小故障前不平衡状态的影响，并自适应整定高灵敏阈值。通过比较零序突变量的幅值，分布于配电网的检测点均可实现故障检测；主站集中分析各检测点零序突变量的符号，则可进一步实现故障区段定位。最后，利用PSCAD仿真数据和真型电弧故障试验数据验证了所提方法的可行性和有效性。

Abstract

The characteristics of single-phase-to-ground faults in distribution networks are weak and influenced by the neutral point grounding modes

which results in insufficient reliability and sensitivity of the existing fault detection and location methods. This paper first simplifies the zero-sequence networks for ungrounded

resonant grounded

and low-resistance grounded systems under ground fault conditions. The zero-sequence fault characteristics of single-phase-to-ground faults in distribution networks under various neutral point grounding modes are analyzed; The relationship and characteristic differences between zero-sequence currents and zero-sequence voltages of upstream from the fault point and sound lines are derived. Subsequently

a zero-sequence transient fault component is defined to quantify the characteristic variation before and after the fault. A calculation method for this component based on discrete numerical integration is proposed

along with an optimized correction method using least squares. This method can minimize the influence of pre-fault unbalanced conditions and enables adaptive setting of the high-sensitivity threshold. Fault detection is achieved at all distributed monitoring points by comparing the magnitude of the zero-sequence transient fault component. Furthermore

fault section location is realized by the central master station analyzing the signs of the zero-sequence transient fault components reported from all monitoring points. Finally

the feasibility and effectiveness of the proposed method are verified using PSCAD simulation data and field arcing fault test data

关键词

Keywords

references

JAMALI S ， BAHMANYAR A . A new fault location method for distribution networks using sparse measurements ［J］. International Journal of Electrical Power & Energy Systems ， 2016 ， 81 ： 459 - 468 .

郭雨豪，薛永端，徐攀，等 . 含同母线环路的配电网单相接地故障特征及选线［J］. 电力系统自动化， 2019 ， 43 （ 1 ）： 234 - 241 .

GUO Yuhao ， XUE Yongduan ， XU Pan ， et al . Characteristic and feeder selection of single-phase grounding fault in distribution network with the same bus loop ［J］. Automation of Electric Power Systems ， 2019 ， 43 （ 1 ）： 234 - 241 .

王宾，崔鑫，董新洲 . 配电线路弧光高阻故障检测技术综述［J］. 中国电机工程学报， 2020 ， 40 （ 1 ）： 96 - 107 .

WANG Bin ， CUI Xin ， DONG Xinzhou . Overview of arc high impedance grounding fault detection technologies in distribution system ［J］. Proceedings of the CSEE ， 2020 ， 40 （ 1 ）： 96 - 107 .

GONZALEZ C ， TANT J ， GERMAIN J G ， et al . Directional， high-impedance fault detection in isolated neutral distribution grids ［J］. IEEE Transactions on Power Delivery ， 2018 ， 33 （ 5 ）： 2474 - 2483 .

薛永端，薛文君，李娟，等 . 小电流接地故障暂态过程的LC谐振机理［J］. 电力系统自动化， 2016 ， 40 （ 24 ）： 137 - 145 .

XUE Yongduan ， XUE Wenjun ， LI Juan ， et al . LC resonance mechanism of transient process of earth fault in non-solidly earthed network ［J］. Automation of Electric Power Systems ， 2016 ， 40 （ 24 ）： 137 - 145 .

薛永端，李娟，陈筱薷，等 . 谐振接地系统高阻接地故障暂态选线与过渡电阻辨识［J］. 中国电机工程学报， 2017 ， 37 （ 17 ）： 5037 - 5048 .

XUE Yongduan ， LI Juan ， CHEN Xiaoru ， et al . Faulty feeder selection and transition resistance identification of high impedance fault in a resonant grounding system using transient signals ［J］. Proceedings of the CSEE ， 2017 ， 37 （ 17 ）： 5037 - 5048 .

ZHANG W H ， JING Y D ， XIAO X Y . Model-based general arcing fault detection in medium-voltage distribution lines ［J］. IEEE Transactions on Power Delivery ， 2016 ， 31 （ 5 ）： 2231 - 2241 .

耿建昭，王宾，董新洲，等 . 中性点有效接地配电网高阻接地故障特征分析及检测［J］. 电力系统自动化， 2013 ， 37 （ 16 ）： 85 - 91 .

GENG Jianzhao ， WANG Bin ， DONG Xinzhou ， et al . Analysis and detection of high impedance grounding fault in neutral point effectively grounding distribution network ［J］. Automation of Electric Power Systems ， 2013 ， 37 （ 16 ）： 85 - 91 .

WANG B ， GENG J Z ， DONG X Z . High-impedance fault detection based on nonlinear voltage-current characteristic profile identification ［J］. IEEE Transactions on Smart Grid ， 2018 ， 9 （ 4 ）： 3783 - 3791 .

GAO J ， WANG X H ， WANG X W ， et al . A high-impedance fault detection method for distribution systems based on empirical wavelet transform and differential faulty energy ［J］. IEEE Transactions on Smart Grid ， 2022 ， 13 （ 2 ）： 900 - 912 .

LEE C J ， PARK J B ， SHIN J R ， et al . A new two-terminal numerical algorithm for fault location， distance protection， and arcing fault recognition ［J］. IEEE Transactions on Power Systems ， 2006 ， 21 （ 3 ）： 1460 - 1462 .

LIEN K Y ， CHEN S L ， LIAO C J ， et al . Energy variance criterion and threshold tuning scheme for high impedance fault detection ［J］. IEEE Transactions on Power Delivery ， 1999 ， 14 （ 3 ）： 810 - 817 .

陈佳佳，邰能灵，林韩，等 . 利用单端暂态量检测单相高阻接地故障的新方法［J］. 电力系统自动化， 2007 ， 31 （ 9 ）： 56 - 60 .

CHEN Jiajia ， TAI Nengling ， LIN Han ， et al . Novel non-unit transient-based protection of single phase high-impedance fault ［J］. Automation of Electric Power Systems ， 2007 ， 31 （ 9 ）： 56 - 60 .

LOPES G N ， MENEZES T S ， SANTOS G G ， et al . High impedance fault detection based on harmonic energy variation via s-transform ［J］. International Journal of Electrical Power & Energy Systems ， 2022 ， 136 ： 107681 .

DONG X Z ， SHI S X . Identifying single-phase-to-ground fault feeder in neutral noneffectively grounded distribution system using wavelet transform ［J］. IEEE Transactions on Power Delivery ， 2008 ， 23 （ 4 ）： 1829 - 1837 .

ZHOU C C ， SHU Q ， HAN X Y . A single-phase earth fault location scheme for distribution feeder on the basis of the difference of zero mode traveling waves ［J］. International Transactions on Electrical Energy Systems ， 2017 ， 27 （ 5 ）： e2298 .

SHENG Y ， ROVNYAK S M . Decision tree-based methodology for high impedance fault detection ［J］. IEEE Transactions on Power Delivery ， 2004 ， 19 （ 2 ）： 533 - 536 .

MICHALIK M ， LUKOWICZ M ， REBIZANT W ， et al . New ANN-based algorithms for detecting HIFs in multigrounded MV networks ［J］. IEEE Transactions on Power Delivery ， 2008 ， 23 （ 1 ）： 58 - 66 .

KO J H ， SHIM J C ， RYU C W ， et al . Detection of high impedance faults using neural nets and chaotic degree ［C］// Proceedings of 1998 International Conference on Energy Management and Power Delivery ， March 17-19 ， 1998 ， Singapore ： 399 - 404 .

RUZ F ， FUENTES J A . Fuzzy decision making applied to high impedance fault detection in compensated neural grounded MV distribution systems ［C］// 7th IEEE International Conference on Developments in Power System Protection ， April 9-12 ， 2001 ， Amsterdam， Netherlands ： 307 - 310 .

GAUTAM S ， BRAHMA S M . Detection of high impedance fault in power distribution systems using mathematical morphology ［J］. IEEE Transactions on Power Systems ， 2013 ， 28 （ 2 ）： 1226 - 1234 .

丁嘉，朱永利 . 图学习与零序分量相结合的风电场集电线单相接地故障定位［J］. 电工技术学报， 2023 ， 38 （ 17 ）： 4701 - 4714 .

DING Jia ， ZHU Yongli . A fault localization scheme for single-phase-to-ground faults on collecting lines in wind farms combining graph learning and zero-sequence components ［J］. Transactions of China Electrotechnical Society ， 2023 ， 38 （ 17 ）： 4701 - 4714 .

张大波，李雪婷，陶维青 . 基于边缘计算和深度学习的有限信息配电网单相接地故障区段定位［J］. 电力系统保护与控制， 2023 ， 51 （ 24 ）： 22 - 32 .

ZHANG Dabo ， LI Xueting ， TAO Weiqing . Single-phase ground fault section location in distribution networks with limited information based on edge computing and deep learning ［J］. Power System Protection and Control ， 2023 ， 51 （ 24 ）： 22 - 32 .

WANG X W ， ZHANG H X ， SHI F ， et al . Location of single phase to ground faults in distribution networks based on synchronous transients energy analysis ［J］. IEEE Transactions on Smart Grid ， 2020 ， 11 （ 1 ）： 774 - 785 .

薛永端，徐丙垠，冯祖仁，等 . 小电流接地故障暂态方向保护原理研究［J］. 中国电机工程学报， 2003 ， 23 （ 7 ）： 51 - 56 .

XUE Yongduan ， XU Bingyin ， FENG Zuren ， et al . The principle of directional earth fault protection using zero sequence transients in non-solid earthed network ［J］. Proceedings of the CSEE ， 2003 ， 23 （ 7 ）： 51 - 56 .

王鹏玮，徐丙垠，陈恒，等 . 零序电流互感器误差对小电流高阻接地保护影响及选型［J］. 电力系统自动化， 2023 ， 47 （ 12 ）： 154 - 162 .

WANG Pengwei ， XU Bingyin ， CHEN Heng ， et al . Influence of error of zero-sequence current transformer on small-current high-resistance grounding protection and type selection ［J］. Automation of Electric Power Systems ， 2023 ， 47 （ 12 ）： 154 - 162 .

姚福星，苗世洪，涂青宇，等 . 考虑强对流天气的乡镇配电网树线矛盾风险预警及优化处理［J］. 电工技术学报， 2023 ， 38 （ 22 ）： 6188 - 6203 .

YAO Fuxing ， MIAO Shihong ， TU Qingyu ， et al . Risk warning and optimization processing for tree-line contradiction in rural distribution network considering severe convective weather ［J］. Transactions of China Electrotechnical Society ， 2023 ， 38 （ 22 ）： 6188 - 6203 .

韩兆儒，石访，张恒旭，等 . 考虑电容投切扰动的配电网高阻接地故障检测方法［J］. 电力系统自动化， 2024 ， 48 （ 21 ）： 180 - 191 .

HAN Zhaoru ， SHI Fang ， ZHANG Hengxu ， et al . High-resistance grounding fault detection method for distribution network considering capacitor switching disturbance ［J］. Automation of Electric Power Systems ， 2024 ， 48 （ 21 ）： 180 - 191 .

刘健，常小强，张志华，等 . 基于零序电压的小电流接地系统高阻单相接地检测启动性能分析及其应用［J］. 供用电， 2023 ， 40 （ 9 ）： 27 - 35 .

LIU Jian ， CHANG Xiaoqiang ， ZHANG Zhihua ， et al . Analysis and applications of startup performance based on zero-sequence-voltage for single phase grounding fault detection of small current grounding systems ［J］. Distribution & Utilization ， 2023 ， 40 （ 9 ）： 27 - 35 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Voltage Information Based Line-broken Fault Location for Distribution Network

Frequency Characteristics Based Location of Single-phase-to-ground Fault Area on Rotor Side of Variable-speed Pumped Storage Unit

Fast Fault Back-tracing Method for Large-scale Complex Distribution Networks Based on Dynamic Graph Projection

Related Author

Jian LIU

Zhihua ZHANG

Yizhao WANG

XING Kai

GUI Lin

ZHANG Qixue

WANG Kai

CHEN Longxiang

Related Institution

School of Electrical Engineering, Xi’an University of Technology

Electric Power Research Institute of State Grid Shaanxi Electric Power Company

State Key Laboratory of Power System Operation and Control (Tsinghua University)

NR Electric Co., Ltd.

State Grid Corporation of China

⁰