Study on Intrusion and Propagation Characteristics of Lightning Overvoltage in High-speed Electric Multiple Unit

被引：0
|
作者：
Cao B. [1 ]
Song Y. [1 ]
Wei W. [1 ]
Gao G. [1 ]
Wu G. [1 ]
机构：
[1] School of Electric Engineering, Southwest Jiaotong University, Chengdu
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2019年 / 41卷 / 12期
关键词：
EMU; Lightning overvoltage; On-board transformer; Traction network; Wave characteristic; Zinc oxide arrester;
D O I：
10.3969/j.issn.1001-8360.2019.12.004
中图分类号：
学科分类号：
摘要：
The erection of most catenary system of high-speed railway on viaducts causes high probability of lightning strike, which subjects the EMU (Electric Multiple Unit) to lightning overvoltage. It is necessary to study the lightning surge characteristics in high voltage system of of EMU when lightning strikes the catenary. In this paper, the lightning overvoltage calculation model of the traction network-EMU was built to analyze the lightning wave waveform characteristics and the range of on-board transformers lightning overvoltage when lightning struck the catenary, and explore the influence of lightning point on the propagation of lightning impulse. The results show that when lightning strikes the contact line/messenger wire, the front time of lightning intruding waves is about 10-20 μs, while the tail time is 30-50 μs. With the increase of the distance between the lightning point and EMU, the amplitude of the lightning wave is gradually reduced, when the wavefront time is gradually increased, and the tail time decreases gradually. The ratio between on-board transformer lightning overvoltage and the protective level of arrester is no greater than 1.34. When lightning strikes the feeder, the tail time of the induced voltage of the contact line is shorter than that of the standard lightning impulse waveform. The lightning overvoltage applied to on-board transformer is approximately to be a flat-top wave. Its front time is longer than that of the standard lightning impulse waveform and its tail time is shorter than that of contact line induced voltage. © 2019, Department of Journal of the China Railway Society. All right reserved.
引用
收藏
页码：26 / 33
页数：7
相关论文
共 22 条
  • [1] Zhou L., Gao F., Li R., Et al., Lightning Protection System of Traction Power Supply System for High-speed Railway, High Voltage Engineering, 39, 2, pp. 399-406, (2013)
  • [2] Lu Z., Gu S., Zhao C., Et al., Analysis on Lightning Performance for Catenary of High-speed Railway Based on Electro-geometric Model, Power System Technology, 38, 3, pp. 812-816, (2014)
  • [3] Cao X., Tian M., Li R., Et al., Influence of the Construction Modes of Lightning Conductor on the Lightning Protection Performance of Back Striking in the Contact Network under Auto-transformer Power Supply Mode, High Voltage Engineering, 42, 11, pp. 3562-3568, (2016)
  • [4] Wu G., Zhang X., Li R., Et al., Attracted Lightning Characteristics of High-speed Railway Catenary Based on Leader Propagation Mode, High Voltage Engineering, 41, 9, pp. 3021-3028, (2015)
  • [5] Bian K., Chen W., Wang L., Et al., Lightning Protection of Faction Power Supply Catenary of High-speed Railway, Proceedings of the CSEE, 33, 10, pp. 191-199, (2013)
  • [6] Cao X., Xiong W., Wu G., Et al., Lightning Scope Division and Lightning Trip-out Rate Calculation Method for Overhead Catenary System, High Voltage Engineering, 39, 6, pp. 1515-1521, (2013)
  • [7] Guo C., Discussion on Insulation Design of Electric Locomotives and EMUS, Railway Locomotive & Car, 30, 2, pp. 1-4, (2010)
  • [8] Gu D., Zhou P., Dai M., Et al., Study on Lightning Performance of 1000 kV AC Transmission Project, High Voltage Engineering, 32, 12, pp. 40-44, (2006)
  • [9] Li Z., Yan X., Wang H., Et al., Analysis of Test and Model for Metal Oxide Arrester under Steep-front Wave, High Voltage Engineering, 38, 10, pp. 2698-2706, (2012)
  • [10] Modeling of Metal Oxide Surge Arresters, IEEE Transactions on Power Delivery, 7, 1, pp. 302-309, (1992)
123