基于线电压馈入的配电网故障消弧与故障检测方法

doi:10.16183/j.cnki.jsjtu.2023.216

摘要/Abstract

摘要：

为了提高降压消弧装置的可靠性和便捷性,提出基于线电压串调制阻尼接地的零序电压灵活调控方法,并研究其在故障消弧与馈线保护中的应用.首先,利用配电网线电压不受单相接地故障影响的优势,提出采用隔离变压器、消弧线圈等传统无源设备的有源接地装置替代方案,具有灵活调控零序电压幅值和相位的优势;然后,论证配电网分布参数不对称对有源消弧的影响,提出基于无源装置的基波电流全补偿的消弧控制方法;其次,提出线电压接入的故障相电压稳定抬升方法,有效提升高阻故障的检测灵敏度;最后,分析接入线电压和调制阻尼的优化选择方案,给出配网故障消弧与馈线保护综合控制方案,并利用仿真实验证实有效性.实际应用中,仅需把选定的线电压经隔离变压器接入中性点,并与阻感式调制阻尼相配合,可有效降低设备成本,提高设备可靠性和控制便捷性,为配电网接地故障馈线保护和零残流故障消弧提供新方案.

关键词: 单相接地故障, 线电压馈入中性点, 故障消弧, 馈线接地保护

Abstract:

In order to improve the reliability and convenience of the voltage-reduction arc suppression device, a zero-sequence voltage flexible control method based on line voltage series modulation damping grounding is proposed, and its application in arc suppression and feeder protection is studied. First, based on the advantage that the line voltage of the distribution network is not affected by single-phase grounding fault, an active grounding device replacement scheme using isolation transformer, arc suppression coil, and other traditional passive devices is proposed, which has the advantage of flexibly regulating the amplitude and phase of zero sequence voltage. Then, the impact of the asymmetric distribution parameters on the active arc suppression is demonstrated, and an arc suppression control method based on full compensation of fundamental current is proposed. Furthermore, a fault phase voltage active lifting method with line voltage access is proposed to effectively improve the detection sensitivity of high resistance faults. Finally, the optimal selection scheme of the accessed line voltage and modulation damping is analyzed, and the integrated control scheme of fault arc suppression and feeder protection in distribution network is given, whose effectiveness is validated by simulation experiment. In practical application, the equipment cost can be reduced only by connecting the selected line voltage to the neutral point through the isolation transformer and cooperating with the resistive modulation damping, which improves the reliability and control convenience of equipment, and provides a new scheme for the grounding fault feeder protection and zero residual current fault arc elimination of the distribution network.

Key words: single phase grounding fault, line voltage feedback input neutral point, arc suppression, feeder grounding protection

中图分类号:

TM771

许洪华, 刘宝稳, 许自强, 刘德林, 于宝淇. 基于线电压馈入的配电网故障消弧与故障检测方法[J]. 上海交通大学学报, 2025, 59(2): 230-241.

XU Honghua, LIU Baowen, XU Ziqiang, LIU Delin, YU Baoqi. Arc Suppression and Fault Detection Method for Distribution Network Faults Based on Line Voltage Feeding[J]. Journal of Shanghai Jiao Tong University, 2025, 59(2): 230-241.

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参考文献 34

[1]	要焕年, 曹梅月. 电力系统谐振接地[M]. 北京: 中国电力出版社, 2000: 26-37.
	YAO Huannian, CAO Meiyue. Power system resonant grounding[M]. Beijing: China Electric Power Press, 2000: 26-37.
[2]	ZENG X J, YU K, WANG Y Y, et al. A novel single phase grounding fault protection scheme without threshold setting for neutral ineffectively earthed power systems[J]. CSEE Journal of Power & Energy Systems, 2016, 2(3): 73-81.
[3]	庞清乐, 孙同景, 穆健, 等. 气隙调感式消弧线圈控制系统的设计[J]. 高电压技术, 2006, 32(4): 8-10.
	PANG Qingle, SUN Tongjing, MU Jian, et al. Design of air gap inductance regulation arc suppression coil control system[J]. High Voltage Engineering, 2006, 32(4): 8-10.
[4]	陈忠仁, 吴维宁, 张勤, 等. 调匝式消弧线圈自动调谐新方法[J]. 电力系统自动化, 2005, 29(24): 75-78.
	CHEN Zhongren, WU Weining, ZHANG Qin, et al. New automatic tuning method for multi-tap arc-suppression coil[J]. Automation of Electric Power Systems, 2005, 29(24): 75-78.
[5]	郑涛, 刘校销. 基于波形自相关的磁控式并联电抗器合闸防误动方案[J]. 电力系统自动化, 2019, 43(24): 156-164.
	ZHENG Tao, LIU Xiaoxiao. Waveform auto-correlation based anti-maloperation scheme during energization of magnetically controlled shunt reactor[J]. Automation of Electric Power Systems, 2019, 43(24): 156-164.
[6]	陈春, 高靖, 曹一家, 等. 多源配网主动孤岛恢复过程电压频率波动的平抑方法[J]. 上海交通大学学报, 2022, 56(5): 543-553. doi: 10.16183/j.cnki.jsjtu.2021.418
	CHEN Chun, GAO Jing, CAO Yijia, et al. Voltage and frequency suppression of intentional islanding restoration process for distribution system with multi-generations[J]. Journal of Shanghai Jiao Tong University, 2022, 56(5): 543-553.
[7]	曾祥君, 王沾, 喻锟, 等. 相电源馈入中性点的配电网接地故障相主动降压消弧装置及其应用[J]. 高电压技术, 2022, 48(9): 3356-3366.
	ZENG Xiangjun, WANG Zhan, YU Kun, et al. Arc suppression device for actively reducing grounding fault phase voltage based on phase power supply feedback in distribution network and its application[J]. High Voltage Engineering, 2022, 48(9): 3356-3366.
[8]	李佳政, 曾祥君, 喻锟, 等. 基于零序电压调控的配电网不平衡过电压抑制方法[J]. 电力系统自动化, 2020, 44(20): 121-126.
	LI Jiazheng, ZENG Xiangjun, YU Kun, et al. Suppression method of unbalanced overvoltage in distribution network based on zero-sequence voltage regulation and control[J]. Automation of Electric Power Systems, 2020, 44(20): 121-126.
[9]	刘宝稳, 曾祥君, 张慧芬, 等. 不平衡零序电压快速精准抑制与电压消弧全补偿优化控制方法[J]. 电工技术学报, 2022, 37(3): 645-654.
	LIU Baowen, ZENG Xiangjun, ZHANG Huifen, et al. Optimal control method for accurate and fast suppression of unbalanced zero-sequence voltage and voltage arc suppression full compensation[J]. Transactions of China Electrotechnical Society, 2022, 37(3): 645-654.
[10]	褚旭, 鲍泽宏. 综合能源系统电力网架继电保护原理综述[J]. 上海交通大学学报, 2023, 57(4): 379-392. doi: 10.16183/j.cnki.jsjtu.2021.492
	CHU Xu, BAO Zehong. Overview of protection principle of power grid in integrated energy system[J]. Journal of Shanghai Jiao Tong University, 2023, 57(4): 379-392.
[11]	郭谋发, 陈静洁, 张伟骏, 等. 基于单相级联H桥变流器的配电网故障消弧与选线新方法[J]. 电网技术, 2015, 39(9): 2677-2684.
	GUO Moufa, CHEN Jingjie, ZHANG Weijun, et al. A novel approach for fault arc extinguishing and feeder selection in distribution networks based on single-phase cascade H-bridge converter[J]. Power System Technology, 2015, 39(9): 2677-2684.
[12]	卫晓辉, 邵文权, 程远, 等. 配电网单相接地故障有源消弧技术综述[J]. 电力工程技术, 2020, 39(6): 58-65.
	WEI Xiaohui, SHAO Wenquan, CHENG Yuan, et al. Review of single-phase grounding fault active arc-suppression technologies in distribution network[J]. Electric Power Engineering Technology, 2020, 39(6): 58-65.
[13]	李双, 施建强. 基于新型双环控制的LC型逆变器研究[J]. 上海交通大学学报, 2022, 56(9): 1139-1147. doi: 10.16183/j.cnki.jsjtu.2021.275
	LI Shuang, SHI Jianqiang. An LC inverter based on novel dual-loop control[J]. Journal of Shanghai Jiao Tong University, 2022, 56(9): 1139-1147.
[14]	曾祥君, 卓超, 喻锟, 等. 基于接地变压器绕组分档调压干预的配电网主动降压消弧与保护新方法[J]. 中国电机工程学报, 2020, 40(5): 1523-1534.
	ZENG Xiangjun, ZHUO Chao, YU Kun, et al. A novel method of faults arc extinguishing and feeder protection based on voltage regulating intervention with grounding transformer winding taps for distribution networks[J]. Proceedings of the CSEE, 2020, 40(5): 1523-1534.
[15]	曾祥君, 李理, 喻锟, 等. 配电网相电源馈入中性点的接地故障相主动降压消弧新原理[J]. 中国电机工程学报, 2023, 43(8): 2953-2966.
	ZENG Xiangjun, LI Li, YU Kun, et al. Novel principle of arc suppression for grounding phase voltage actively reduced based on phase power supply feedback in distribution network[J]. Proceedings of the CSEE, 2023, 43(8): 2953-2966.
[16]	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.
[17]	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.
[18]	OZANSOY C. Performance analysis of skewness methods for asymmetry detection in high impedance faults[J]. IEEE Transactions on Power Systems, 2020, 35(6): 4952-4955.
[19]	邓丰, 梅龙军, 唐欣, 等. 基于时频域行波全景波形的配电网故障选线方法[J]. 电工技术学报, 2021, 36(13): 2861-2870.
	DENG Feng, MEI Longjun, TANG Xin, et al. Faulty line selection method of distribution network based on time-frequency traveling wave panoramic waveform[J]. Transactions of China Electrotechnical Society, 2021, 36(13): 2861-2870.
[20]	杨帆, 刘鑫星, 沈煜, 等. 基于零序电流投影系数的小电阻接地系统高阻接地故障保护[J]. 电网技术, 2020, 44(3): 1128-1133.
	YANG Fan, LIU Xinxing, SHEN Yu, et al. High resistance ground fault protection of low resistance grounding system based on zero sequence current projection coefficient[J]. Power System Technology, 2020, 44(3): 1128-1133.
[21]	汪洋, 薛永端, 徐丙垠, 等. 小电阻接地系统接地故障反时限零序过电流保护[J]. 电力系统自动化, 2018, 42(20): 150-157.
	WANG Yang, XUE Yongduan, XU Bingyin, et al. Zero-sequence inverse-time overcurrent protection in low resistance grounding system with grounding fault[J]. Automation of Electric Power Systems, 2018, 42(20): 150-157.
[22]	曾祥君, 王福恒, 李理, 等. 中压配电网接地故障快速安全处置技术[J]. 供用电, 2021, 38(12): 2-8.
	ZENG Xiangjun, WANG Fuheng, LI Li, et al. Fast and safe disposal technology of grounding fault in medium voltage distribution network[J]. Distribution & Utilization, 2021, 38(12): 2-8.
[23]	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(15): 77-83.
	WEI Lishan, JIA Wenchao, JIAO Yanjun. Single-phase fault line selection scheme of a distribution system based on fifth harmonic and admittance asymmetry[J]. Power System Protection & Control, 2020, 48(15): 77-83.
[24]	YU K, LIU S Q, ZENG X J, et al. A novel insulation parameter online measuring technique based on two voltage transformers for distribution networks[J]. IEEE Transactions on Power Delivery, 2021, 36(6): 3383-3392.
[25]	薛永端, 李广, 徐丙垠. 利用熄弧后暂态信息测量谐振接地系统的对地电容[J]. 电工技术学报, 2020, 35(7): 1521-1528.
	XUE Yongduan, LI Guang, XU Bingyin. Measuring method of capacitance to ground in resonant grounding system based on transient information after arc extinguishing[J]. Transactions of China Electrotechnical Society, 2020, 35(7): 1521-1528.
[26]	刘宝稳, 李晓波. 跟踪补偿消弧装置变参调谐通用方法[J]. 电力系统及其自动化学报, 2015, 27(9): 1-6.
	LIU Baowen, LI Xiaobo. General automatic tuning method of change parameters arc-suppression coil compensation device[J]. Proceedings of the CSU-EPSA, 2015, 27(9): 1-6.
[27]	张林利, 张毅, 薛永端, 等. 考虑系统不对称的小电流接地故障相识别[J]. 电力自动化设备, 2019, 39(4): 24-29.
	ZHANG Linli, ZHANG Yi, XUE Yongduan, et al. Fault phase identification of non-solidly grounding system considering system asymmetry[J]. Electric Power Automation Equipment, 2019, 39(4): 24-29.
[28]	谢菁, 薛永端, 徐丙垠. 小电流接地系统不对称电压有源补偿控制方法[J]. 电力系统自动化, 2015, 39(5): 115-121.
	XIE Jing, XUE Yongduan, XU Bingyin. An active compensation and control method of asymmetrical voltage in non-solidly grounded system[J]. Automation of Electric Power Systems, 2015, 39(5): 115-121.
[29]	李晓波, 蒋峰景, 李康, 等. 采用改进有源补偿技术的中性点电压柔性控制方法[J]. 电力系统自动化, 2016, 40(24): 111-117.
	LI Xiaobo, JIANG Fengjing, LI Kang, et al. Flexible control method of neutral point voltage using improved active compensation technology[J]. Automation of Electric Power Systems, 2016, 40(24): 111-117.
[30]	梁晨光, 王宾, 李凤婷, 等. 高压线路单相弧光接地对数仿真模型数据修正算法[J]. 电力系统自动化, 2019, 43(4): 126-131.
	LIANG Chenguang, WANG Bin, LI Fengting, et al. Data correction algorithm of logarithmic simulation model for single-phase arc grounding fault on high-voltage transmission line[J]. Automation of Electric Power Systems, 2019, 43(4): 126-131.
[31]	刘宝稳, 王崇林, 李晓波. 不对称电网不完全接地故障零序电压轨迹及应用[J]. 中国电机工程学报, 2014, 34(28): 4959-4967.
	LIU Baowen, WANG Chonglin, LI Xiaobo. Analysis and application of zero-sequence voltage of single-phase ground fault asymmetrical system[J]. Proceedings of the CSEE, 2014, 34(28): 4959-4967.
[32]	LIU B W, MA H Z, XU H H, et al. Single-phase-to-ground fault detection with distributed parameters analysis in non-direct grounded systems[J]. CSEE Journal of Power & Energy Systems, 2019, 5(1): 139-147.
[33]	刘宝稳, 曾祥君, 张慧芬, 等. 有源柔性接地配电网弧光高阻接地故障检测方法[J]. 中国电机工程学报, 2022, 42(11): 4001-4013.
	LIU Baowen, ZENG Xiangjun, ZHANG Huifen, et al. Arc high resistance grounding fault detection method for active flexible grounding distribution network[J]. Proceedings of the CSEE, 2022, 42(11): 4001-4013.
[34]	任伟, 薛永端, 徐丙垠, 等. 小电阻接地系统高阻接地故障纵联差动保护[J]. 电网技术, 2021, 45(8): 3276-3282.
	REN Wei, XUE Yongduan, XU Bingyin, et al. Longitudinal differential protection of high resistance grounding faults in low-resistance grounding system[J]. Power System Technology, 2021, 45(8): 3276-3282.

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接地故障相	接入线电压
A相	U_AB、U_CB、U_CA
B相	U_BC、U_AC、U_AB
C相	U_CA、U_BA、U_BC