Analysis of the arc high impedance grounding faults voltage characteristics in non-effective grounding feeders

被引：0
|
作者：
Qiu J. [1 ,2 ]
Cui X. [3 ]
Tian Y. [1 ,4 ]
Wang B. [3 ]
Li G. [4 ]
机构：
[1] China Electric Power Research Institute, Beijing
[2] State Key Laboratory of Power Grid Environmental Protection, Wuhan
[3] State Key Laboratory of Control and Simulation of Power Systems and Generation Equipments (Department of Electric Engineering of Tsinghua University), Beijing
[4] State Grid Liaoning Electric Power Research Institute, Shenyang
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2019年 / 47卷 / 16期
关键词：
Arc; Distribution lines; High impedance grounding; Small current grounding; Zero sequence voltage;
D O I：
10.19783/j.cnki.pspc.181088
中图分类号：
学科分类号：
摘要：
The difficulty of single-phase arc high impedance grounding fault detection in neutral ineffectively grounded system lies in how to realize sensitive start. The current detection methods use the zero sequence voltage amplitude limit as the starting criterion, but the setting of the limit value directly affects the sensitivity and reliability of detection, it is often difficult to take into account both in practical operation. Aiming at this problem, based on the field wave recording data, this paper analyzes the transient voltage characteristics in the event of the single-phase arc high impedance grounding fault by means of numerical statistics, Fourier transform and graph comparison from the time domain and frequency domain. Meanwhile, the transient model of arc high impedance grounding fault is established, which verifies the validity of the transient voltage characteristics features extracted. It lays a foundation for the subsequent development of sensitive start criterion of faulty line selection device when single-phase arc high impedance grounding fault occurs. © 2019, Power System Protection and Control Press. All right reserved.
引用
收藏
页码：115 / 121
页数：6
相关论文
共 21 条
  • [1] Li T., Xue B., Xue Y., High impedance fault protection of distribution networks and it developments, Distribution & Utilization, 35, 5, pp. 2-6, (2018)
  • [2] Jiang B., Dong X., Shi S., Et al., A method of adaptive time frequency window traveling wave based fault, Proceedings of the CSEE, 35, 24, pp. 6387-6397, (2015)
  • [3] Xue Y., Feng Z., Xu B., Et al., Earth fault protection in non-solidly earthed network based on transient zero sequence current comparison, Automation of Electric Power Systems, 27, 9, pp. 48-53, (2003)
  • [4] Pan B., Song H., Zhang Q., Et al., Reactive power analysis and novel faulty selection method in resonant grounding system, Power System Protection and Control, 45, 14, pp. 51-56, (2017)
  • [5] Dong X., Wang J., Shi S., Principle and algorithm of traveling waves based single-phase-to- ground protection for distribution lines, Proceedings of the CSEE, 33, 10, pp. 154-160, (2013)
  • [6] Gopakumar P., Mallikajuna B., Reddy M.J.B., Et al., Remote monitoring system for real time detection and classification of transmission line faults in a power grid using PMU measurements, Protection and Control of Modern Power Systems, 3, 1, (2018)
  • [7] Song J., Li Y., Shi Z., Et al., A fault line selection method for resonant earthed system with high accuracy, Power System Protection and Control, 45, 6, pp. 9-15, (2017)
  • [8] Dong X., Bi J., Analysis on transient traveling wave and study on fault line selection for distribution lines, Proceedings of the CSEE, 25, 4, pp. 1-6, (2005)
  • [9] Shu H., Peng S., Li B., Et al., A new approach to detect fault line in resonant earthed system using simulation after test, Proceedings of the CSEE, 28, 16, pp. 59-64, (2008)
  • [10] Xue Y., Li J., Chen X., Et al., Faulty feeder selection and transition resistance identification of high impedance fault in a resonant grounding system using transient signals, Proceedings of the CSEE, 37, 17, pp. 5037-5048, (2017)
123