基于零序电流变化特征值和消弧线圈分散补偿的接地故障选线方法

林海; 黄莹雪; 秦忠明; 任向阳

doi:10.16513/j.2096-2185.DE.2011004

PDF(1736 KB)

分布式能源 ›› 2020, Vol. 5 ›› Issue (6) : 51-59. DOI: 10.16513/j.2096-2185.DE.2011004

应用技术

基于零序电流变化特征值和消弧线圈分散补偿的接地故障选线方法

林海 ¹ ,
黄莹雪 ² ,
秦忠明 ¹ ,
任向阳 ¹

作者信息 +

Ground Fault Line Selection Based on Zero Sequence Current Variation Eigenvalue and Arc Suppression Coil Distributed Compensation

Author information +

文章历史 +

摘要

为了更好地解决消弧线圈分散补偿接地系统的接地选线问题，提出一种基于零序电流变化特征值的故障选线方法。首先，通过开关控制主消弧线圈的投切，正常运行时主消弧线圈为接入状态，系统收到单相接地故障报警信号后断开开关使主消弧线圈短时退出运行然后再闭合；其次，采集主消弧线圈断开前后各线路的零序电流信号，计算各线路在主消弧线圈退出运行前后的零序电流变化特征值并进行整化，从而识别故障线路；最后，在Matlab环境下建立仿真模型，考虑不同故障点、过渡电阻和消弧线圈补偿度等因素的影响，结合工程实际的适用性，对不同的消弧线圈分散补偿接地系统进行仿真分析，大量仿真表明了该选线方法的正确性和可行性。

Abstract

In order to improve the accuracy of the fault line selection of the arc suppression coil dispersion compensation grounding system, a new method of single-phase-to-ground line selection for arc suppression coil decentralized compensation grounding system is proposed based on the difference of zero sequence current variation eigenvalue between the fault line and non-fault line. The switch controls the casting and cutting of main arc suppression coil, the switch is closed in the normal state, and the switch is open in a short time and then closed after the system received a single-phase ground fault alarm signal. The fault line is identified by collecting the zero sequence current signal of each line before and after the main arc extinguishing coil is disconnected and comparing the zero sequence current variation characteristic value before and after the main arc extinguishing coil is exhausted. The simulation model is established by Matlab, and the influence of different fault points, transition resistance, arc suppression coil compensation degree and the practical applicability of the project is considered. The simulation results show that the method is correct and feasible.

导出引用

林海, 黄莹雪, 秦忠明, 等. 基于零序电流变化特征值和消弧线圈分散补偿的接地故障选线方法[J]. 分布式能源. 2020, 5(6): 51-59 https://doi.org/10.16513/j.2096-2185.DE.2011004

Hai LIN, Yingxue HUANG, Zhongming QIN, et al. Ground Fault Line Selection Based on Zero Sequence Current Variation Eigenvalue and Arc Suppression Coil Distributed Compensation[J]. Distributed Energy Resources. 2020, 5(6): 51-59 https://doi.org/10.16513/j.2096-2185.DE.2011004

中图分类号： TK29

参考文献

列表( 原文顺序 | 文献年度倒序 | 文中引用次数倒序 ) 可视化分析

[1]	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(7): 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(7): 69-76. 本文引用 [1]

[2]	宋金钊，李永丽，石峥，等. 一种新的谐振接地系统单相接地故障选线方法[J]. 电力系统保护与控制，2017, 45(6): 9-15. SONG Jinzhao, LI Yongli, SHI Zheng, et al. A new method of single-phase-to-ground fault line selection for resonant grounding system[J]. Power System Protection and Control, 2017, 45(6): 9-15. 本文引用 [1]

[3]	韦莉珊，贾文超，焦彦军. 基于5次谐波与导纳不对称度的配电网单相接地选线方法[J]. 电力系统保护与控制，2020, 48(5): 77-83. WEI Lishan, JIA Wenchao, JIAO Yanjun. Single-phase grounding line selection method for distribution network based on 5th harmonic and admittance asymmetry[J]. Power System Protection and Control, 2020, 48(5): 77-83. 本文引用 [1]

[4]	郭谋发，严敏，陈彬，等. 基于波形时域特征聚类法的谐振接地系统故障选线[J]. 电力自动化设备，2015, 35(11): 59-66. GUO Moufa, YAN Min, CHEN Bin, et al. Fault line selection of resonant grounding system based on waveform time domain feature clustering method [J]. Electric Power Automation Equipment, 2015, 35(11): 59-66. 本文引用 [1]

[5]

薛永端，张秋凤，颜廷纯，等. 综合暂态与工频信息的谐振接地系统小电流接地故障选线[J]. 电力系统自动化，2014, 38(24): 80-84.

XUE

Yongduan

, ZHANG

Qiufeng

, YAN

Tingchun

, et al. Fault line selection for small current grounding fault in resonant grounding system with integrated transient and power frequency information[J]. Automation of Electric Power Systems, 2014, 38(24): 80-84.

本文引用 [1]

[6]	郭谋发，郑新桃，杨耿杰，等. 利用暂态波形伸缩变换的谐振接地系统故障选线方法[J]. 电力自动化设备，2014, 34(9): 33-39. GUO Moufa, ZHENG Xintao, YANG Gengjie, et al. Fault line selection method of resonant grounding system using transient waveform telescopic transformation[J]. Electric Power Automation Equipment, 2014, 34(9): 33-39. 本文引用 [1]

[7]	查丛梅，王长江，魏云冰，等. 一种基于EMD的谐振接地系统选线新方法[J]. 电力系统保护与控制，2014, 42(12): 100-103. CHA Congmei, WANG Changjiang, WEI Yunbing, et al. A new method of electromechanical grounding system based on EMD[J]. Power System Protection and Control, 2014, 42(12): 100-103. 本文引用 [1]

[8]	任建文，张猛. 近似熵在谐振接地系统故障选线中的应用探讨[J]. 电测与仪表，2015, 52(12): 18-22. REN Jianwen, ZHANG Meng. Application of approximate entropy in fault line selection of resonant grounding system[J]. Electrical Measurement and Instrumentation, 2015, 52(12): 18-22. 本文引用 [1]

[9]	郭谋发，杨耿杰，黄世远. 谐振接地系统暂态特征自适应故障选线方法[J]. 电力自动化设备，2012, 32(10): 35-41. GUO Moufa, YANG Gengjie, HUANG Shiyuan. Adaptive fault line selection for transient characteristics of resonant grounding system[J]. Electric Power Automation Equipment, 2012, 32(10): 35-41. 本文引用 [1]

[10]	郭谋发，高源，杨耿杰. 谐振接地系统暂态波形差异性识别法接地选线[J]. 电力自动化设备，2014, 34(5): 59-66. GUO Moufa, GAO Yuan, YANG Gengjie. Method of grounding selection for resonant grounding system based on transient waveform difference identification[J]. Electric Power Automation Equipment, 2014, 34(5): 59-66. 本文引用 [1]

[11]	张国栋，蒲海涛，刘凯. 基于深度学习的小电流接地系统故障选线方法[J]. 发电技术，2019, 40(6): 548-554. ZHANG Guodong, PU Haitao, LIU Kai. Fault line selection method of small current grounding system based on deep learning[J]. Power Generation Technology, 2019, 40(6): 548-554. 本文引用 [1]

[12]	吴乐鹏，黄纯，林达斌，等. 基于暂态小波能量的小电流接地故障选线新方法[J]. 电力自动化设备，2013, 33(5): 70-75. WU Lepeng, HUANG Chun, LIN Dabin, et al. New method for fault line selection of small current grounding based on transient wavelet energy[J]. Electric Power Automation Equipment, 2013, 33(5): 70-75. 本文引用 [1]

[13]	牛云涛，李华，宋志宏，等. 谐振接地系统多判据多周期信息融合故障选线方法[J]. 电工技术学报，2015, 30(1): 512-517. NIU Yuntao, LI Hua, SONG Zhihong, et al. Multi-cycle information fusion fault line selection method for resonant grounding system[J]. Transaction of China Electrotechnical Society, 2015, 30(1): 512-517. 本文引用 [1]

[14]	邢亚辉. 利用零序电流的相关性进行小电流接地系统故障选线[J]. 电力自动化设备，2008, 28(9): 64-67. XING Yahui. Using the correlation of zero sequence current to fault line selection of small current grounding system[J]. Electric Power Automation Equipment, 2008, 28(9): 64-67. 本文引用 [1]

[15]	唐轶，陈庆. 一种新的适合分布安装的消弧线圈[J]. 电力自动化设备，2007, 27(11): 87-90. TANG Yi, CHEN Qing. Arc-suppression coil for decentralized compensation[J]. Electric Power Automation Equipment, 2007, 27(11): 87-90. 本文引用 [2]

[16]	文玉玲. 配电网消弧线圈分散补偿接地方式的研究[J]. 电力系统及其自动化，2016, 38(5): 89-94. WEN Yuling. Study on decentralized compensation grounding method of arc suppression coil in distribution network[J]. Power System and Automation, 2016, 38(5): 89-94. 本文引用 [2]