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1.南瑞集团有限公司(国网电力科学研究院有限公司),江苏省南京市 211106
2.北京科东电力控制系统有限责任公司,北京市 100192
3.国网黑龙江省电力有限公司,黑龙江省哈尔滨市 150090
朱秀香(1984—),女,硕士,主要研究方向:配电网故障检测。E-mail:sdzhuxiuqing@163.com
刘肖骢(1976—),男,通信作者,硕士,高级工程师,主要研究方向:配电网及其自动化技术。E-mail:gs_xc@126.com
姚敏东(1965—),男,硕士,高级工程师,主要研究方向:电力调度自动化、变电站集中监控。E-mail:hljymd@126.com
收稿:2021-08-03,
修回:2022-03-10,
网络出版:2022-11-22,
纸质出版:2022-12-25
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朱秀香,刘肖骢,姚敏东等.配电网接地故障下相电流暂态变化量的分析及应用[J].电力系统自动化,2022,46(24):187-196.
ZHU Xiuxiang,LIU Xiaocong,YAO Mindong,et al.Analysis and Application of Transient Change of Phase Current Under Grounding Fault in Distribution Network[J].Automation of Electric Power Systems,2022,46(24):187-196.
朱秀香,刘肖骢,姚敏东等.配电网接地故障下相电流暂态变化量的分析及应用[J].电力系统自动化,2022,46(24):187-196. DOI: 10.7500/AEPS20210803003.
ZHU Xiuxiang,LIU Xiaocong,YAO Mindong,et al.Analysis and Application of Transient Change of Phase Current Under Grounding Fault in Distribution Network[J].Automation of Electric Power Systems,2022,46(24):187-196. DOI: 10.7500/AEPS20210803003.
配电网发生单相接地故障后,利用相电流变化量稳态特征进行故障区段定位,在谐振接地系统采用过补偿方式下存在一定盲区。通过分析小电流接地故障的暂态模型,建立了包含故障点上游、下游模分量的复合模网等效电路。推导了故障点至母线段、非故障线路、故障点下游故障相与健全相暂态电流变化量的表达式。重点分析了不同检测点位置故障相暂态电流变化量与健全相的比值及方向。提出一种综合采用相暂态电流变化量比值及方向确定故障区段的方法。利用相暂态电流变化量的比值选出故障线路,利用特征频带内相暂态电流变化量的方向定位故障区段,可实现接地故障的就地判别。PSCAD仿真和10 kV真型试验结果验证了理论分析的正确性和所提算法的可行性。
After the single-phase grounding fault occurs in the distribution network
the steady characteristics of phase current changes are used for faulty locating section
and there is a certain blind zone in the overcompensation mode of the resonant grounding system. By analyzing the transient model of non-solidly grounding fault
the equivalent circuit of composite-mode network including upstream and downstream mode components of the fault point is established. The expressions of transient current change from the fault point to bus section
non-fault line
faulty phase and sound phase downstream of the fault point are derived. The ratio and direction of transient current change of faulty phase to sound phase at different detection points are emphatically analyzed. This paper presents a method to determine the faulty section by comprehensively using the ratio and direction of phase transient current changes. The ratio of phase current transient change is used to select the faulty line
and the direction of phase current transient change in the characteristic frequency band is used for faulty section locating
which can realize the local discrimination of grounding fault. The results of PSCAD simulation and 10 kV prototype test show that the theoretical analysis is correct and the proposed algorithm is feasible.
徐丙垠 , 薛永端 , 冯光 , 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 Guang , et al . Discussion on several problems of earthing fault protection in distribution network [J]. Automation of Electric Power Systems , 2019 , 43 ( 20 ): 1 - 7 .
邵文权 , 刘一欢 , 程远 , 等 . 基于零序阻抗突变特征的谐振接地系统高阻接地故障选线方法 [J]. 电力自动化设备 , 2021 , 41 ( 11 ): 120 - 126 .
SHAO Wenquan , LIU Yihuan , CHENG Yuan , et al . Fault line selection method of grounding fault with high resistance in resonant grounding system based on intensive zero-sequence impedance characteristics [J]. Electric Power Automation Equipment , 2021 , 41 ( 11 ): 120 - 126 .
王雪菲 , 李京 , 陈平 , 等 . 基于行波波形综合相似度比较的电缆故障选线 [J]. 电力系统保护与控制 , 2022 , 50 ( 1 ): 51 - 59 .
WANG Xuefei , LI Jing , CHEN Ping , et al . Cable fault line selection based on comprehensive similarity comparison of traveling wave waveforms [J]. Power System Protection and Control , 2022 , 50 ( 1 ): 51 - 59 .
国家电网有限公司 . 配电网技术导则 : Q/GDW 10370—2016 [S]. 北京 : 中国电力出版社 , 2017 .
State Grid Coporation of China . Technical guidelines for distribution network : Q/GDW 10370—2016 [S]. Beijing : China Electric Power Press , 2017 .
徐岩 , 张荟 , 孙易洲 . 基于变异粒子群算法的主动配电网故障恢复策略 [J]. 电力自动化设备 , 2021 , 41 ( 12 ): 45 - 53 .
XU Yan , ZHANG Hui , SUN Yizhou . Fault recovery strategy of active distribution network based on mutation particle swarm optimization algorithm [J]. Electric Power Automation Equipment , 2021 , 41 ( 12 ): 45 - 53 .
于力 , 焦在滨 , 王晓鹏 , 等 . 基于PMU的中压配电网精确故障定位方法及关键技术 [J]. 电力系统自动化 , 2020 , 44 ( 18 ): 30 - 38 .
YU Li , JIAO Zaibin , WANG Xiaopeng , et al . Accurate fault location scheme and key technology of medium-voltage distribution network with synchrophasor measurement units [J]. Automation of Electric Power Systems , 2020 , 44 ( 18 ): 30 - 38 .
张明一 , 孙元章 , 黎雄 , 等 . 改进时域反演算法在配电网故障定位中的应用 [J]. 电力系统自动化 , 2021 , 45 ( 15 ): 101 - 108 .
ZHANG Mingyi , SUN Yuanzhang , LI Xiong , et al . Application of improved time reversal algorithm in fault location for distribution network [J]. Automation of Electric Power Systems , 2021 , 45 ( 15 ): 101 - 108 .
王文轩 , 程力涵 , 樊轶 , 等 . 不依赖零序电压的配电站所接地故障识别方法 [J]. 电力系统自动化 , 2021 , 45 ( 9 ): 122 - 129 .
WANG Wenxuan , CHENG Lihan , FAN Yi , et al . Identification method of grounding fault for distribution station independent of zero-sequence voltage [J]. Automation of Electric Power Systems , 2021 , 45 ( 9 ): 122 - 129 .
宋伊宁 , 李天友 , 薛永端 , 等 . 基于配电自动化系统的分布式小电流接地故障定位方法 [J]. 电力自动化设备 , 2018 , 38 ( 4 ): 102 - 109 .
SONG Yining , LI Tianyou , XUE Yongduan , et al . Distributed small-current grounding fault locating method based on power distribution network automation system [J]. Electric Power Automation Equipment , 2018 , 38 ( 4 ): 102 - 109 .
薛永端 , 李天友 , 李伟新 , 等 . 小电流接地故障暂态分析及区段定位新方法 [J]. 电力系统自动化 , 2014 , 38 ( 23 ): 101 - 107 .
XUE Yongduan , LI Tianyou , LI Weixin , et al . A novel method of transient analysis and faulty section location for single-phase earth fault in non-effectively earthed network [J]. Automation of Electric Power Systems , 2014 , 38 ( 23 ): 101 - 107 .
薛永端 , 徐丙垠 , 李天友 , 等 . 配网自动化系统小电流接地故障暂态定位技术 [J]. 电力自动化设备 , 2013 , 33 ( 12 ): 27 - 32 .
XUE Yongduan , XU Bingyin , LI Tianyou , et al . Small-current grounding fault location based on transient signals of distribution automation system [J]. Electric Power Automation Equipment , 2013 , 33 ( 12 ): 27 - 32 .
孙波 , 孙同景 , 薛永端 , 等 . 基于暂态信息的小电流接地故障区段定位 [J]. 电力系统自动化 , 2008 , 32 ( 3 ): 52 - 55 .
SUN Bo , SUN Tongjing , XUE Yongduan , et al . Single phase to ground fault section location based on transient signals in non-solidly earthed network [J]. Automation of Electric Power Systems , 2008 , 32 ( 3 ): 52 - 55 .
赵慧梅 , 张保会 , 段建东 , 等 . 一种自适应捕捉特征频带的配电网单相接地故障选线新方案 [J]. 中国电机工程学报 , 2006 , 26 ( 2 ): 41 - 46 .
ZHAO Huimei , ZHANG Baohui , DUAN Jiandong , et al . A new scheme of faulty line selection with adaptively capturing the feature band for power distribution networks [J]. Proceedings of the CSEE , 2006 , 26 ( 2 ): 41 - 46 .
常仲学 , 宋国兵 , 黄炜 , 等 . 基于相电压电流突变量特征的配电网单相接地故障区段定位方法 [J]. 电网技术 , 2017 , 41 ( 7 ): 2363 - 2370 .
CHANG Zhongxue , SONG Guobing , HUANG Wei , et al . Phase voltage and current fault components based fault segment location method under single-phase earth fault in distribution network [J]. Power System Technology , 2017 , 41 ( 7 ): 2363 - 2370 .
汤涛 , 黄纯 , 江亚群 , 等 . 基于高低频段暂态信号相关分析的谐振接地故障选线方法 [J]. 电力系统自动化 , 2016 , 40 ( 16 ): 105 - 111 .
TANG Tao , HUANG Chun , JIANG Yaqun , et al . Fault line selection method in resonant earthed system based on transient signal correlation analysis under high and low frequencies [J]. Automation of Electric Power Systems , 2016 , 40 ( 16 ): 105 - 111 .
孙波 , 张承慧 , 孙同景 , 等 . 基于暂态相电流的小电流接地故障定位研究 [J]. 电力系统保护与控制 , 2012 , 40 ( 18 ): 69 - 74 .
SUN Bo , ZHANG Chenghui , SUN Tongjing , et al . Earth fault location based on transient phase current in non-solidly earthed network [J]. Power System Protection and Control , 2012 , 40 ( 18 ): 69 - 74 .
袁钦成 . 配电系统故障处理自动化技术 [M]. 北京 : 中国电力出版社 , 2000 .
YUAN Qincheng . Automation technology of fault handling in distribution system [M]. Beijing : China Electric Power Press , 2000 .
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 - 231 .
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 - 231 .
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 .
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 .
金鑫 , 薛永端 , 彭振华 , 等 . 仅利用零序电流的谐振接地系统接地故障方向算法 [J]. 电力系统自动化 , 2020 , 44 ( 9 ): 164 - 170 .
JIN Xin , XUE Yongduan , PENG Zhenhua , et al . Grounding fault direction algorithm using zero-sequence current in resonant grounding system [J]. Automation of Electric Power Systems , 2020 , 44 ( 9 ): 164 - 170 .
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 .
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 .
苗友忠 , 孙雅明 , 杨华 . 中性点不接地配电系统馈线单相接地故障的暂态电流保护新原理 [J]. 中国电机工程学报 , 2004 , 24 ( 2 ): 28 - 32 .
MIAO Youzhong , SUN Yaming , YANG Hua . A new principle of transient current grounded relay for feeder in ungrounded distribution systems [J]. Proceedings of the CSEE , 2004 , 24 ( 2 ): 28 - 32 .
孙雅明 , 苗友忠 . 谐振接地配电系统馈线单相接地故障的暂态电流保护新原理 [J]. 中国电机工程学报 , 2004 , 24 ( 3 ): 62 - 66 .
SUN Yaming , MIAO Youzhong . A new principle of transient current grounded relay for feeder in resonant-grounded distribution systems [J]. Proceedings of the CSEE , 2004 , 24 ( 3 ): 62 - 66 .
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