基于三相电流变化增量的单相接地故障判断的研究

李智玲; 徐肃; 郑岩; 李智博; 张瑞强; 李航; 孙嘉宁

doi:10.13296/j.1001-1609.hva.2026.08.024

您当前的位置：

首页 >

文章列表页 >

基于三相电流变化增量的单相接地故障判断的研究

研究与分析 | 更新时间：2026-08-12

- 基于三相电流变化增量的单相接地故障判断的研究
- Study on Single-phase Ground Fault Diagnosis Based on Three Phase Current Variation Increment
- 高压电器 2026年62卷第8期页码：203-213
- 作者机构：
  
  内蒙古电力（集团）有限责任公司包头供电分公司，内蒙古包头 014030
  广州市宁志电力科技有限公司，广州 511400
- 作者简介：
  
  李智玲（1977—），女，工程硕士，高级工程师，研究方向电力自动化等技术。
  孙嘉宁（1954—），女，工学硕士，高级工程师，研究方向为电力自动化技术、高电压技术等（通信作者）（E-mail：3922314141@126.com）。
- 基金信息：
  
  内蒙古电力（集团）有限责任公司科技项目资助Science and Technology Project of Inner Mongolia Power （Group） Co., Ltd.(nmgdlkjxm2022009)
- DOI：10.13296/j.1001-1609.hva.2026.08.024
  中图分类号：
- 收稿：2026-01-17，
  
  修回：2026-03-19，
  
  纸质出版：2026-08-16
- 稿件说明：
移动端阅览
李智玲, 徐肃, 郑岩, 等. 基于三相电流变化增量的单相接地故障判断的研究[J]. 高压电器, 2026,62(8):203-213.

LI Zhiling, XU Su, ZHENG Yan, et al. Study on Single-phase Ground Fault Diagnosis Based on Three Phase Current Variation Increment[J]. High Voltage Apparatus, 2026, 62(8): 203-213.
李智玲, 徐肃, 郑岩, 等. 基于三相电流变化增量的单相接地故障判断的研究[J]. 高压电器, 2026,62(8):203-213. DOI： 10.13296/j.1001-1609.hva.2026.08.024.

LI Zhiling, XU Su, ZHENG Yan, et al. Study on Single-phase Ground Fault Diagnosis Based on Three Phase Current Variation Increment[J]. High Voltage Apparatus, 2026, 62(8): 203-213. DOI： 10.13296/j.1001-1609.hva.2026.08.024.

摘要

为了解决单相接地故障处理存在高阻故障判断盲区的技术难题，对接地故障发生时三相电流变化增量进行研究。从理论分析和10 kV真型模拟试验两方面入手，分析单相接地故障网络，研究接地故障点前后三相电流变化增量的特征，结合10 kV真型模拟试验数据、提出完整判据，创新了一种采用三相电流的稳态变化量来判断单相接地故障方法。该方法通过多种类型10 kV真型单相接地故障试验，证明其能够对单相接地故障准确选相选线和故障定段，并具有精准判断高阻接地故障的技术优势，可普遍适用于中性点不接地、经消弧线圈和小电阻接地系统。

Abstract

In order to address the technical challenge of blind spots in high-impedance fault ientification during single-phase ground fault handling

the incremental changes in three-phase currents upon the occurrence of ground fault are investigated. Through both theoretical analysis and 10 kV full-scale simulation tests

the single-phase ground fault network is analyzed

and the characteristics of the three-phase current variation increments before and after the ground point are studied. A complete criterion is proposed in combination with the data from the 10 kV full-scale simualtion tests

and an innovate method for identifying single-phase groud faults using steady-state variations of three-phase current is developed.This method has been validated through various types of 10 kV full-scale single-phase ground fault tests

demonstrating its capability to accurately determine the faulted phase

identify the faulted feeder

and locate the fault section.Moreover

it also exhibits a distinct technical advantage in accurately identifying high-impedance ground fault. Furthermore

this method is universially applicable to neutral point ungrounded systems

systems grounded via arc-suppression coil

and low resistance grounded systems.

关键词

Keywords

references

程斌.基于10 kV配电线路单相接地故障的研究[J].中国电业(技术版),2012(10):27-29.

Cheng Bin.Research on single-phase grounding fault of 10 kV distribution line[J]. China Electric Power(Technical Edition),2012 (10):27-29.

廖德辉,金鑫,田君杨,等.灵活接地配电网单相接地故障全过程特征分析[J]. 智慧电力,2024,52(5):90-97.

Liao Dehui, Jin Xin, Tian Junyang, et al. Analysis of the entire process characteristics of single phase-toground faults in flexible grounded distribution networks[J]. Smart Power ,2024 ,52(5):90-97.

王笑然,范春菊,胡炎,等.含有储能电站的主动配电网单相接地故障选线方法[J]. 电力科学与技术学报,2025,40(5):59-70.

Wang Xiaoran, Fan Chunju, Hu Yan, et al. Single-phase grounding fault line selection method for active distribution network with energy storage power stations[J]. Journal of Electric Power Science and Technology,2025,40(5):59-70.

刘红政,左毅,王伦,等.基于FTU的新型配电网单相接地故障研究[J]. 电力电容器与无功补偿,2024,45(6):76-82.

Liu Hongzheng, Zuo Yi, Wang Lun, et al. Research on single phase ground fault of new distribution network based onFTU[J]. Power Capacitor & Reactive Power Compensation,2024,45(6):76-82.

李传东.变电站中性点不接地系统单相接地故障解析[J].电世界,2022,63(5):21-25.

Li Chuandong.Analysis of single - phase grounding fault in ungrounded neutral system of substation[J]. Electric World,2022, 63(5):21-25.

窦仁宇.配电线路单相接地故障的分析判断[J].农村电气化, 1999(4):30.

Dou Renyu.Analysis and judgment of single-phase grounding fault of distribution line[J]. Rural Electrification,1999(4):30.

赵凤贤,闫钿,孙丽颖.基于暂态零序无功功率的小电流系统单相接地选线[J].继电器,2007(s1):59-62.

Zhao Fengxian, Yan Dian, Sun Liying.Zero sequence transient reactive power for a single-phase-earth feeder on non-solid distribution[J]. Relay,2007(s1):59-62.

李泽文,黎文娇,彭维馨,等.基于IHHT-RF的配电网单相接地故障选线方法[J]. 电力科学与技术学报,2024,39(1):171-182.

Li Zewen, Li Wenjiao, Peng Weixin, et al. Single-phase-to-ground fault line selection method of distribution network based on IHHT-RF[J]. Journal of Electric Power Science and Technology,2024,39 (1):171-182.

邓祥力,赵磊鑫,熊小伏,等.基于多元暂态特征故障度的配电网单相接地选线方法[J]. 电力系统保护与控制,2024,52(15):69-80.

Deng Xiangli, Zhao Leixin, Xiong Xiaofu, et al. A single-phase grounding line selection method for a distribution network based onmultivariate transient characteristic fault degree[J]. Power System Protection and Control,2024,52(15):69-80.

王巍,卢庆辉,吕帅,等.多端供电运行配电网单相接地选线方法研究[J]. 电力科学与技术学报,2025,40(2):110-121.

Wang Wei, Lu Qinghui, Lyu Shuai, et al. Single-phase grounding line selection method for multi-terminal power supply distribution network[J]. Journal of Electric Power Science and Technology, 2025,40(2):110-121.

李广.配电网单相接地故障区段定位研究[D].西安:西安交通大学,2012.

Li Guang.Research on section location of single-phase grounding fault in distribution network[D]. Xi'an: Xi'an Jiaotong University, 2012.

王鹏,冯光,韦延方,等.10 kV配电网的接地故障测试述评及真型实验场设计[J].电力系统保护与控制,2020,48(11):178-187.

Wang Peng, Feng Guang, Wei Yanfang, et al.Review of grounding fault testing and design of real experiment field for 10 kV distribution network[J]. Power System Protection and Control, 2020,48(11):178-187.

刘健,宋国兵,张志华,等.配电网单相接地故障处理[M].北京:中国水利水电出版社,2018.

Liu Jian, Song Guobin, Zhang Zhihua, et al.Single-phase grounding fault treatment of distribution network[M]. Beijing: China Water Conservancy and Hydropower Press,2018.

邹豪,曾祥君,喻锟,等.基于零序电压调控的故障选线选相新方法[J].电力系统保护与控制,2020,48(15):69-76.

Zou Hao, Zeng Xiangjun, Yu Kun, et al.A new method of fault line selection and phase selection based on zero sequence voltage regulation[J]. Power System Protection and Control,2020,48(15):69-76.

王琦.中性点不接地系统带过渡电阻单相接地时故障相的判别方法[J].电世界,2020,61(7):30-33.

Wang Qi. Identification method of fault phase in neutral ungrounded system with single phase grounding with transition resistance[J]. Electric World,2020,61(7):30-33.

白鹏飞,张荣荣,张双双.变电站35 kV系统单相接地故障分析及防范措施[J].电气技术与经济,2019,12(6):63-65.

Bai Pengfei, Zhang Rongrong, Zhang Shuangshuang.Analysis and preventive measures of single-phase grounding fault in 35 kV substation system[J]. Electrical Equipment and Economy,2019,12 (6):63-65.

韦仁琼,唐复怡.针对中性点经消弧线圈接地系统单相接地故障稳态分析[J].电工技术(下半月),2016(9):8.

Wei Renqiong, Tang Fuyi.Steady state analysis of single-phase grounding fault in neutral grounding system through arc suppression coil[J]. Electric Engineering,2016(9):8.

宋国兵,李广,于叶云,等.基于相电流突变量的配电网单相接地故障区段定位[J].电力系统自动化,2011,35(21):84-90.

Song Guobing, Li Guang, Yu Yeyun, et al. Single-phase earth fault section location based on phase current fault component in distribution network[J]. Automation of Electric Power Systems, 2011,35(21):84-90.

艾芊.电力系统稳态分析[M].北京:清华大学出版社,2014.

Ai Qian. Steady state analysis of power system[M]. Beijing: Tsinghua University Press,2014.

于永源,杨绮雯.电力系统分析[M].第5版.北京:中国电力出版社,2012.

Yu Yongyuan, Yang Qiwen.Power system analysis[M]. 5th ed. Beijing: China Electric Power Press,2012.

平绍勋,周玉芳.电力系统中性点接地方式及运行分析[M].北京:中国电力出版社,2010.

Ping Shaoxun, Zhou Yufang.Neutral grounding mode and operation analysis of power system[M]. Beijing: China Electric Power Press, 2010.

杨以涵,齐郑.中压配电网单相接地故障选线及定位技术[M].北京:中国电力出版社,2014.

Yang Yihan, Qi Zheng.Single-phase grounding fault line selection and location technology for medium voltage distribution network[M]. Beijing: China Electric Power Press,2014.

李传健,孙嘉宁,胡青山,等.配网单相接地故障模拟试验平台的研究与实现[J].机电工程技术,2015(9):122-126.

Li Chuanjian, Sun Jianing, Hu Qingshan, et al.Research and implementation of a distribution network single-phase-to-ground fault simulated experiment platform[J]. Mechanical & Electrical Engineering Technology,2015(9):122-126.

梁改革,袁光伟.配电网中性点接地方式对比分析[J].电工技术, 2018(11):34-36.

Liang Gaige, Yuan Guangwei.Comparison and analysis of neutral grounding modes in distribution network[J]. Electric Engineering, 2018(11):34-36.

张乃刚,张加胜,郑长明,等.基于零序电流幅值分布相似性的小电流接地故障定位方法[J].电力系统保护与控制,2018,46(13):120-125.

Zhang Naigang, Zhang Jiasheng, Zheng Changming, et al.Fault section location based on similarity of zero sequence current amplitude distribution in non-solidly-earthed network[J]. Power System Protection and Control,2018,46(13):120-125.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

复杂空气流场下垂直轴风力机差异化防冰策略研究

基于VSG的并网变流器惯量阻尼综合自适应控制

基于三维有限元的交流输电线路电晕噪声分布研究

330 kV架空—电缆混合线路操作过电压特征研究

750 kV架空地线感应电流及损耗影响规律研究