小电流接地系统接地故障电弧重燃暂态特征分析

李广; 薛永端; 徐丙垠; 杨帆

doi:10.7500/AEPS20190924001

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小电流接地系统接地故障电弧重燃暂态特征分析

研制与开发 | 更新时间：2025-06-16

- 小电流接地系统接地故障电弧重燃暂态特征分析
- Analysis on Arc Re-ignition Transient Characteristics for Grounding Fault in Non-solidly Grounding System
- 电力系统自动化-方正平台 2020年44卷第11期页码：189-196
- 作者机构：
  
  1.中国石油大学(华东)新能源学院，山东省青岛市 266580
  2.山东科汇电力自动化股份有限公司，山东省淄博市 250101
  3.国网湖北省电力有限公司电力科学研究院，湖北省武汉市 430077
- 作者简介：
  
  李广(1994—)，男，硕士研究生，主要研究方向：配电网故障检测。E-mail：lig2017@126.com
  薛永端(1970—)，男，通信作者，博士，教授，博士生导师，主要研究方向：配电网故障检测。E-mail：xueyd70@126.com
  徐丙垠(1961—)，男，博士，教授，博士生导师，主要研究方向：电力线路故障检测、配电自动化。E-mail:xuby@vip.163.com
- 基金信息：
  
  国家自然科学基金资助项目(51477184);State Grid Hubei Electric Power Co., Ltd(521532170037)
- DOI：10.7500/AEPS20190924001
  中图分类号：
- 收稿日期：2019-09-24，
  
  修回日期：2019-12-29，
  
  网络出版日期：2020-04-22，
  
  纸质出版日期：2020-06-10
- 稿件说明：
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李广,薛永端,徐丙垠等.小电流接地系统接地故障电弧重燃暂态特征分析[J].电力系统自动化,2020,44(11):189-196.

LI Guang,XUE Yongduan,XU Bingyin,et al.Analysis on Arc Re-ignition Transient Characteristics for Grounding Fault in Non-solidly Grounding System[J].Automation of Electric Power Systems,2020,44(11):189-196.
李广,薛永端,徐丙垠等.小电流接地系统接地故障电弧重燃暂态特征分析[J].电力系统自动化,2020,44(11):189-196. DOI： 10.7500/AEPS20190924001.

LI Guang,XUE Yongduan,XU Bingyin,et al.Analysis on Arc Re-ignition Transient Characteristics for Grounding Fault in Non-solidly Grounding System[J].Automation of Electric Power Systems,2020,44(11):189-196. DOI： 10.7500/AEPS20190924001.

摘要

小电流接地系统单相接地故障时常具有间歇性，针对电弧重燃时刻与重燃时电气量的分析可完善故障暂态理论并提高检测效果。文中根据接地故障熄弧后的电压与绝缘恢复特点，分析不同接地系统中在故障点不同稳定情况时的可能重燃时刻，并对重燃后故障暂态特征进行分析。故障点稳定时，不接地系统中易在熄弧后半个工频周期内重燃；经消弧线圈接地系统中，重燃主要发生在故障相电压峰值前时刻。故障点不稳定时，重燃时刻无明显规律。将重燃过程看作非零初始状态的单相接地故障，高频暂态电流的谐振频率、衰减因子与重燃时刻无关，幅值与重燃时刻故障相电压瞬时值近似成正比，经消弧线圈接地系统中的衰减直流分量衰减因子与重燃时刻无关、幅值与相电压对时间导数近似成正比。仿真及实测数据验证了分析结论的正确性。

Abstract

Single-phase grounding faults in non-solidly grounding systems are often accompanied by intermittent features. Analysis of the time of arc re-ignition and the electrical quantity when arc re-ignition happens can improve the fault transient theory and the effect of fault detection. Based on the recovery characteristics of voltage and insulation after arc extinction

the possible arc re-ignition time and the transient characteristics of the fault after arc re-ignition are analyzed under different stable conditions of the fault point in different grounding systems. When the fault point is stable

it is easy to re-ignite in the ungrounded system within half a power frequency period after the arc is extinguished. In the arc suppression coil grounding system

the arc re-ignition occurs mainly before the peak voltage of the fault phase. When the fault point is unstable

the re-ignition time is not obviously regular.Regarding the arc re-ignition process as a single-phase grounding fault in a non-zero initial state

the resonance frequency and damping factor of the high-frequency transient current are independent of the re-ignition time

and the amplitude is approximately proportional to the instantaneous value of the fault phase voltage at the re-ignition time. The damping factor of the attenuating DC component in resonant grounding system is independent of the re-ignition time

and its amplitude is approximately proportional to the derivative of phase voltage with time. The simulation and field data verify the correctness of the analysis conclusion.

关键词

Keywords

references

陈怡 . 电力系统分析 [M]. 北京 : 中国电力出版社 , 2005 .

CHEN Yi . Power system analysis [M]. Beijing : China Electric Power Press , 2005 .

薛永端 , 李娟 , 徐丙垠 . 中性点不接地系统小电流接地故障暂态等值电路的建立 [J]. 中国电机工程学报 , 2013 , 33 ( 34 ): 223 - 232 .

XUE Yongduan , LI Juan , XU Bingyin . Construction of transient equivalent circuits of single-phase earth fault for isolated neutral systems [J]. Proceedings of the CSEE , 2013 , 33 ( 34 ): 223 - 232 .

薛永端 , 李娟 , 徐丙垠 . 中性点经消弧线圈接地系统小电流接地故障暂态等值电路及暂态分析 [J]. 中国电机工程学报 , 2015 , 35 ( 22 ): 5703 - 5714 .

XUE Yongduan , LI Juan , XU Bingyin . Transient equivalent circuit and transient analysis of single-phase earth fault in arc suppression coil grounded system [J]. Proceedings of the CSEE , 2015 , 35 ( 22 ): 5703 - 5714 .

徐丙垠 , 薛永端 , 冯远光 , 等 . 配电网接地故障保护若干问题的探讨 [J]. 电力系统自动化 , 2019 , 43 ( 20 ): 1 - 7 .

XU Bingyin , XUE Yongduan , FENG Yuanguang , et al . Discussion on several problems of earthing fault protection in distribution network [J]. Automation of Electric Power Systems , 2019 , 43 ( 20 ): 1 - 7 .

刘谋海 , 方涛 , 姜运 , 等 . 基于暂态主频分量相关性分析的故障选线方法 [J]. 电力系统保护与控制 , 2016 , 44 ( 2 ): 74 - 79 .

LIU Mouhai , FANG Tao , JIANG Yun , et al . A new correlation analysis approach to fault line selection based on transient main-frequency components [J]. Power System Protection and Control , 2016 , 44 ( 2 ): 74 - 79 .

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 .

蔡颖倩 , 王钢 , 樊晨曦 , 等 . 利用故障全过程信息的消弧线圈接地系统间歇性接地故障选线方法 [J]. 电力系统保护与控制 , 2017 , 45 ( 9 ): 9 - 17 .

CAI Yingqian , WANG Gang , FAN Chenxi , et al . Faulty line selection based on information in the whole process of intermittent earth fault in resonant grounding distribution networks [J]. Power System Protection and Control , 2017 , 45 ( 9 ): 9 - 17 .

张志霞 , 张欣雨 . 配电网间歇性电弧接地故障选线方法 [J]. 中国电力 , 2013 , 46 ( 8 ): 108 - 111 .

ZHANG Zhingxia , ZHANG Xinyu . Selection method of intermittent arc-grounding fault based on an adaptive notch filter [J]. Electric Power , 2013 , 46 ( 8 ): 108 - 111 .

顾荣斌 . 小电流接地电网单相电弧接地故障分析及仿真研究 [D]. 上海：上海交通大学 , 2009 .

GU Rongbin . Analysis and simulation research of single-phase arc grounding fault in small current grounding power systems [D]. Shanghai ： Shanghai Jiao Tong University , 2009 .

王飞 . 小电流接地系统弧光接地模型及仿真研究 [D]. 济南：山东大学 , 2016 .

WANG Fei . Arc ground model and simulation in non-effectively grounded system [D]. Jinan : Shandong University , 2016 .

ALBERTO B , MAURO B , MAURO D S , et al . Continuous-wavelet transform for fault location in distribution power networks: definition of mother wavelets inferred from fault originated transients [J]. IEEE Transactions on Power Systems , 2008 , 23 ( 2 ): 380 - 388 .

CUI T , DONG X , BO Z , et al . Hilbert-transform-based transient/intermittent earth fault detection in noneffectively grounded distribution systems [J]. IEEE Transactions on Power Delivery , 2011 , 26 ( 1 ): 143 - 151 .

张新慧 . 基于Prony算法的小电流接地故障暂态选线技术 [D]. 济南：山东大学 , 2008 .

ZHANG Xinhui . Transient line selection technique for small current ground fault based on Prony algorithm [D]. Jinan : Shandong University , 2008 .

殷毅 , 刘金亮 , 钟辉煌 , 等 . 不同气压和电极间距对开关绝缘恢复的影响 [J]. 高电压技术 , 2009 , 35 ( 2 ): 304 - 308 .

YIN Yi , LIU Jinliang , ZHONG Huihuang , et al . Influence of gas pressure and gap distance on the recovery time of gas spark gap switch [J]. High Voltage Engineering , 2009 , 35 ( 2 ): 304 - 308 .

蔡新景 , 邹晓兵 , 王新新 . 氮气短间隙的耐受电压和气体密度恢复特性 [J]. 高电压技术 , 2011 , 37 ( 6 ): 1471 - 1478 .

CAI Xinjing , ZOU Xiaobing , WANG Xinxin . Recovery of holdoff voltage and gas density in short Nitrogen gaps [J]. High Voltage Engineering , 2011 , 37 ( 6 ): 1471 - 1478 .

许日 , 莫凡 . 重复率气体火花开关绝缘恢复特性 [J]. 强激光与粒子束 , 1996 , 8 ( 4 ): 518 - 522 .

XU Ri , MO Fan . Experiment research of rep-rate gas spark gap insulation recovery [J]. High Power Laser and Particle Beams , 1996 , 8 ( 4 ): 518 - 522 .

文远芳 . 高电压技术 [M]. 武汉 : 华中科技大学出版社 , 2001 .

WEN Yuanfang . High voltage technology [M]. Wuhan : Huazhong University of Science and Technology Press , 2001 .

杨帆 , 李广 , 沈煜 , 等 . 中压配电网单相接地故障熄弧后的电气特征分析 [J]. 电力系统自动化 , 2019 , 43 ( 10 ): 134 - 141 .

YANG Fan , LI Guang , SHEN Yu , et al . Electrical characteristics of single-phase grounding faults in medium voltage distribution network after arc extinction [J]. Automation of Electric Power Systems , 2019 , 43 ( 10 ): 134 - 141 .

康小宁 , 屈亚军 , 焦在滨 , 等 . 基于最小二乘矩阵束算法的工频分量提取方法 [J]. 电力系统自动化 , 2014 , 38 ( 21 ): 66 - 70

KANG Xiaoning , QU Yajun , JIAO Zaibin , et al . Power-frequency phasor extraction based on least-square matrix pencil algorithm [J]. Automation of Electric Power Systems , 2014 , 38 ( 21 ): 66 - 70 .

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