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1.中国石油大学(华东)新能源学院,山东省青岛市 266580
2.广西电网电力调度控制中心,广西壮族自治区南宁市 530023
3.山东理工大学智能电网研究院,山东省淄博市 255049
王小帅(2000—),女,硕士研究生,主要研究方向:配电网故障检测与诊断。E-mail:1242553451@qq.com
薛永端(1970—2024),男,通信作者,博士,教授,博士生导师,主要研究方向:配电网接地保护与电气安全防护。E-mail:xueyd70@126.com
刘萃萃(1999—),女,硕士研究生,主要研究方向:配电网故障检测与诊断。E-mail:15621026398@163.com
收稿:2023-08-28,
修回:2024-03-25,
网络出版:2024-06-04,
纸质出版:2024-08-25
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王小帅,薛永端,刘萃萃等.灵活接地系统小电阻退出暂态特征及对暂态故障选线方法影响[J].电力系统自动化,2024,48(16):174-183.
WANG Xiaoshuai,XUE Yongduan,LIU Cuicui,et al.Transient Characteristics of Small Resistor Exit in Flexible Grounding System and Implications for Transient Faulty-line Selection Methods[J].Automation of Electric Power Systems,2024,48(16):174-183.
王小帅,薛永端,刘萃萃等.灵活接地系统小电阻退出暂态特征及对暂态故障选线方法影响[J].电力系统自动化,2024,48(16):174-183. DOI: 10.7500/AEPS20230828003.
WANG Xiaoshuai,XUE Yongduan,LIU Cuicui,et al.Transient Characteristics of Small Resistor Exit in Flexible Grounding System and Implications for Transient Faulty-line Selection Methods[J].Automation of Electric Power Systems,2024,48(16):174-183. DOI: 10.7500/AEPS20230828003.
灵活接地系统发生高阻接地故障时,中性点小电阻并联阶段保护往往拒动,仍需考虑小电阻退出时的暂态特征对已有暂态故障选线方法的影响。并联小电阻退出时伴随一定的暂态过渡过程,文中针对此过程建立灵活接地系统单相接地故障暂态等值电路。分析了并联小电阻退出时系统各暂态电气量特征、不同故障情况对暂态电气量幅值的影响、暂态零序电流与暂态零序电压的约束关系,明确并联小电阻退出后暂态量对暂态故障选线方法稳定性的影响。当灵活接地系统高阻接地故障小电阻退出时,产生的暂态电气量将导致暂态幅值比较法、暂态极性选线法、暂态功率方向法误动,但暂态零序电流投影法选线正确,仿真验证了分析结果的正确性。
When a high-resistor grounding fault occurs in a flexible grounding system
the protection during the parallel stage of neutral point small resistor often refuses to activate
so it is still necessary to consider the impact of the transient characteristics of small resistor exit on the existing transient faulty-line selection methods. The exit of the parallel small resistor is accompanied by a certain transient transition process. For this process
a transient equivalent circuit for a single-phase grounding fault in a flexible grounding system is established. The characteristics of transient electrical quantities of the system when the parallel small resistor exits
the impact of different fault conditions on the amplitude of transient electrical quantities
and the constraint relationship between transient zero-sequence current and transient zero-sequence voltage are analyzed. The impact of transient quantities after the parallel small resistor exits on the stability of the transient faulty-line selection methods is clarified. When the small resistor exits during a high-resistor grounding fault in a flexible grounding system
the generated transient electrical quantities will cause misoperation in the transient amplitude comparison method
transient polarity selection method
and transient power direction method
but the transient zero-sequence current projection method for the line selection is correct. The simulation verifies the accuracy of the results.
韩静 , 徐丽杰 . 中性点经消弧线圈瞬时并联小电阻接地研究 [J]. 高电压技术 , 2005 , 31 ( 1 ): 38 - 39 .
HAN Jing , XU Lijie . Study on instantaneous parallel small resistance grounding of neutral point through arc suppression coil [J]. High Voltage Engineering , 2005 , 31 ( 1 ): 38 - 39 .
金鑫 . 灵活接地系统单相接地故障特征分析及保护 [D]. 东营 : 中国石油大学(华东) , 2020 .
JIN Xin . Characteristic analysis and protection of single phase grounding fault in flexible grounding system [D]. Dongying : China University of Petroleum (East China) , 2020 .
齐郑 , 杭天琦 , 李悦悦 . 消弧线圈并联小电阻接地方式下的行波故障测距 [J]. 电力系统自动化 , 2020 , 44 ( 1 ): 175 - 182 .
QI Zheng , HANG Tianqi , LI Yueyue . Traveling wave fault location for arc-suppression coil in parallel with low resistance grounding mode [J]. Automation of Electric Power Systems , 2020 , 44 ( 1 ): 175 - 182 .
中国南方电网有限责任公司 . 消弧线圈并小电阻接地装置技术规范(征求意见稿) [EB/OL].[ 2023-02-06 ]. http://www.bidding.csg.cn/yjzjgg/1200039088.jhtml http://www.bidding.csg.cn/yjzjgg/1200039088.jhtml .
China Southern Power Grid Company Limited . Technical specification of arc-suppression coil and low resistance in parallel grounding device(draft) [EB/OL]. [ 2023-02-06 ]. http://www.bidding.csg.cn/yjzjgg/1200039088.jhtml http://www.bidding.csg.cn/yjzjgg/1200039088.jhtml .
国家能源局 . 消弧线圈并联低电阻接地装置技术条件 : DL/T 2482—2022 [S]. 北京 : 中国电力出版社 , 2022 .
National Energy Administration . Requirements for grounding device of arc suppression coil paralleling low resistance : DL/T 2482—2022 [S]. Beijing : China Electric Power Press , 2022 .
薛永端 , 张海台 , 李成刚 , 等 . 小电流接地故障暂态选线与定位技术 [J]. 供用电 , 2015 , 32 ( 4 ): 32 - 37 .
XUE Yongduan , ZHANG Haitai , LI Chenggang , et al . The technology of faulty feeder selection and faulty section location based on transient signals for single-phase earth fault in non-solidly earthed network [J]. Distribution & Utilization , 2015 , 32 ( 4 ): 32 - 37 .
王尊贤 , 武守远 , 栾晓明 . 基于虚拟能量变化率的谐振接地系统高阻接地故障选线方法 [J]. 电力系统自动化 , 2022 , 46 ( 3 ): 137 - 146 .
WANG Zunxian , WU Shouyuan , LUAN Xiaoming . Fault line selection method for high-impedance grounding fault of resonant grounded system based on change rate of virtual energy [J]. Automation of Electric Power Systems , 2022 , 46 ( 3 ): 137 - 146 .
孟毅 , 严涛 , 周志强 , 等 . 中性点消弧线圈并联可控投切低电阻接地装置单相接地故障试验研究 [J]. 湖北电力 , 2017 , 41 ( 11 ): 20 - 23 .
MENG Yi , YAN Tao , ZHOU Zhiqiang , et al . Experimental study on single phase grounding fault of a neutral grounding device consisted of an arc suppression coil and a parallel controllable switching low resistance [J]. Hubei Electric Power , 2017 , 41 ( 11 ): 20 - 23 .
薛永端 , 金鑫 , 刘晓 , 等 . 灵活接地系统中配电网接地保护的适应性分析 [J]. 电力系统自动化 , 2022 , 46 ( 5 ): 112 - 121 .
XUE Yongduan , JIN Xin , LIU Xiao , et al . Analysis on adaptability of grounding protection for distribution network in flexible grounded system [J]. Automation of Electric Power Systems , 2022 , 46 ( 5 ): 112 - 121 .
尹力 , 孔令昌 , 王冠华 , 等 . 基于负序电压变化量的灵活接地配电网永久性单相接地故障定位 [J]. 电力自动化设备 , 2023 , 43 ( 1 ): 83 - 89 .
YIN Li , KONG Lingchang , WANG Guanhua , et al . Permanent single-phase grounding fault location in flexible grounding distribution network based on negative-sequence voltage variation [J]. Electric Power Automation Equipment , 2023 , 43 ( 1 ): 83 - 89 .
王晓卫 , 张帆 , 王毅钊 , 等 . 基于小电阻投入后扰动量标定的灵活接地系统定位新方法 [J]. 电网技术 , 2024 , 48 ( 3 ): 1301 - 1310 .
WANG Xiaowei , ZHANG Fan , WANG Yizhao , et al . Novel fault location based on disturbance calibration after small resistance input in flexible grounding system [J]. Power System Technology , 2024 , 48 ( 3 ): 1301 - 1310 .
周宇 , 汤涛 , 曾祥君 , 等 . 基于零序电流幅值比倍增系数的灵活接地系统故障选线方法 [J]. 电力系统保护与控制 , 2022 , 50 ( 23 ): 112 - 120 .
ZHOU Yu , TANG Tao , ZENG Xiangjun , et al . Fault line detection method for a flexible grounding system based on a zero-sequence current amplitude ratio multiplication coefficient [J]. Power System Protection and Control , 2022 , 50 ( 23 ): 112 - 120 .
闫森 , 黄纯 , 刘映彤 , 等 . 基于零序功率比的灵活接地系统故障选线方法 [J]. 电力系统及其自动化学报 , 2023 , 35 ( 3 ): 46 - 52 .
YAN Sen , HUANG Chun , LIU Yingtong , et al . Flexible fault selection method of grounding system based on zero-sequence power ratio [J]. Proceedings of the CSU-EPSA , 2023 , 35 ( 3 ): 46 - 52 .
杨帆 , 金鑫 , 沈煜 , 等 . 基于零序导纳变化的灵活接地系统接地故障方向判别算法 [J]. 电力系统自动化 , 2020 , 44 ( 17 ): 88 - 94 .
YANG Fan , JIN Xin , SHEN Yu , et al . Discrimination algorithm of grounding fault direction based on variation of zero-sequence admittance in flexible grounding system [J]. Automation of Electric Power Systems , 2020 , 44 ( 17 ): 88 - 94 .
汤涛 , 周宇 , 曾祥君 , 等 . 基于过渡电阻评估的灵活接地系统暂态故障选线方法 [J]. 电力系统自动化 , 2023 , 47 ( 5 ): 171 - 179 .
TANG Tao , ZHOU Yu , ZENG Xiangjun , et al . Transient fault line selection method for flexible grounded system based on transition resistance evaluation [J]. Automation of Electric Power Systems , 2023 , 47 ( 5 ): 171 - 179 .
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 .
李广 . 间歇性小电流接地故障暂态分析 [D]. 东营 : 中国石油大学(华东) , 2020 .
LI Guang . Transient analysis of intermittent small current grounding fault [D]. Dongying : China University of Petroleum (East China) , 2020 .
乔东伟 , 宫德锋 , 谢松伟 , 等 . 小电流接地故障熄弧后电气量对暂态选线方法的影响 [J]. 电力系统及其自动化学报 , 2022 , 34 ( 12 ): 114 - 120 .
QIAO Dongwei , GONG Defeng , XIE Songwei , et al . Influences of electrical quantities on transient line selection methods after arc extinction under small current grounding fault [J]. Proceedings of the CSU-EPSA , 2022 , 34 ( 12 ): 114 - 120 .
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 medium-voltage distribution network with single-phase-to-ground fault after arc extinction [J]. Automation of Electric Power Systems , 2019 , 43 ( 10 ): 134 - 141 .
王雪文 , 石访 , 张恒旭 , 等 . 基于暂态能量的小电流接地系统单相接地故障区段定位方法 [J]. 电网技术 , 2019 , 43 ( 3 ): 818 - 825 .
WANG Xuewen , SHI Fang , ZHANG Hengxu , et al . A single-phase earth fault location method based on transient energy for non-effectively grounded system [J]. Power System Technology , 2019 , 43 ( 3 ): 818 - 825 .
亓志滨 , 薛永端 , 刘健 , 等 . 跨线相继接地故障暂态特征与暂态选线方法适用性 [J]. 电力系统自动化 , 2023 , 47 ( 19 ): 156 - 165 .
QI Zhibin , XUE Yongduan , LIU Jian , et al . Transient characteristics of cross-line successive grounding faults and applicability of transient line selection methods [J]. Automation of Electric Power Systems , 2023 , 47 ( 19 ): 156 - 165 .
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 .
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 .
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 .
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