A novel method for fault location of distribution network based on μPMU synchronized measurement data

被引：0
|
作者：
Ge W. [1 ]
Zhang S. [2 ]
Zhang Y. [1 ]
Li T. [1 ]
Li J. [2 ]
Gao F. [3 ]
Li G. [2 ]
Wei W. [4 ]
机构：
[1] State Grid Liaoning Electric Power Co., Ltd., Shenyang
[2] School of Electrical Engineering, Northeast Electric Power University, Jilin
[3] Linyi Power Supply Company, State Grid Shandong Electric Power Company, Linyi
[4] Zibo Power Supply Company, State Grid Shandong Electric Power Company, Zibo
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2020年 / 48卷 / 04期
关键词：
Distribution network; Fault component; Fault location; Symmetrical component method; µPMU;
D O I：
10.19783/j.cnki.pspc.190417
中图分类号：
学科分类号：
摘要：
In this paper, a fault location method for distribution network based on synchronous measurement data of μPMU is proposed by configuring micro synchronous Phasor Measurement Unit (μPMU) in radial distribution network. Firstly, the initial fault distance is calculated by synchronous phasor of voltage and current of single-ended μPMU. Then, the pseudo-fault points are eliminated according to synchronous phasor of voltage and current of double-ended μPMU, and the specific location of the fault in the main network is determined iteratively. By comparing with the initial fault distance, the fault occurs in the main network or in the branch line is judged. Finally, the pseudo-fault points are eliminated iteratively, and the distance from fault to main network is determined. This method considers the influence of line capacitance on fault location accuracy. Through the analysis of line capacitance to ground, the location error is reduced. The simulation results verify the effectiveness of this method. © 2020, Power System Protection and Control Press. All right reserved.
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页码：39 / 46
页数：7
相关论文
共 24 条
  • [1] Wang Y., Liu S., Yi J., Et al., Fault location algorithm based on state estimation in tree distribution network with distributed generation, Power System Protection and Control, 46, 23, pp. 60-67, (2018)
  • [2] Zhang H., Pan Z., Zhang F., A comprehensive line selection method for single-phase grounding faults in distribution networks, High Voltage Technology, 34, 4, pp. 788-793, (2008)
  • [3] Tang J., Yin X., Zhang Z., Et al., Survey of fault location technology for distribution networks, Electric Power Automation Equipment, 35, 5, pp. 7-13, (2013)
  • [4] Ramar K., Eng E.N., Generalized Impedance-based fault location for distribution systems, IEEE Transactions on Power Delivery, 27, 1, pp. 449-451, (2012)
  • [5] Mora-Florez J., Melendez J., Carrillo-Caicedo G., Comparison of impedance based fault location methods for power distribution systems, Electric Power Systems Research, 78, 4, pp. 657-666, (2008)
  • [6] Deng F., Li X., Zeng X., Et al., A novel multi-terminal fault location method based on traveling wave time difference for radial distribution systems with distributed generators, Proceedings of the CSEE, 38, 15, (2018)
  • [7] Shi S., Lei A., He X., Et al., Travelling waves-based fault location scheme for feeders in power distribution network, The Journal of Engineering, 2018, 15, pp. 1326-1329, (2018)
  • [8] Bao X., Xiao K., Yang J., Et al., Single-phase grounding fault location method based on active signal injection method, Electrical Technology, 17, pp. 135-137, (2018)
  • [9] Qi Z., Zhuang S., Liu Z., Et al., Fault location method analysis of distribution network based on shunt resistance disturbance signal, Automation of Electric Power Systems, 42, 9, pp. 195-200, (2018)
  • [10] Li J., Wei W., Chen J., CML based μPMU phasor measurement algorithm for distribution network, Southern Power System Technology, 11, 7, pp. 58-67, (2017)
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