Experimental study of electromagnetic radiation characteristics of pantograph-catenary off-line arcs in high-speed railway

被引：0
|
作者：
Jin M. [1 ]
Liu S. [1 ,2 ]
Xing T. [3 ]
Yang C. [3 ]
Liu W. [1 ]
Fang Q. [1 ]
Hu M. [1 ]
机构：
[1] Hebei Key Laboratory for Electromagnetic Environmental Effects and Information Processing, Shijiazhuang Tiedao University, Shijiazhuang
[2] National Key Laboratory on Electromagnetic Environment Effects, Army Engineering University of PLA, Shijiazhuang
[3] Standards and Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2022年 / 42卷 / 12期
基金：
中国国家自然科学基金;
关键词：
electromagnetic environment effect; electromagnetic interference; electromagnetic radiation; experiment; high-speed railway; pantograph-catenary off-line arcs;
D O I：
10.16081/j.epae.202204085
中图分类号：
学科分类号：
摘要：
The electromagnetic environment of the high-speed railway system is very complicated，and the electromagnetic radiation generated by the pantograph-catenary off-line arcs is one of the most important sources of electromagnetic interference in the high-speed railway system. The high-speed pantograph-catenary relationship experimental bench is used for the simulation experiment of pantograph-catenary off-line discharge under the condition of high current and high speed. The time-domain waveforms of discharge radiation field under different arc currents and vehicle speeds are both measured，and the characteristics of offline discharge electromagnetic radiation，including the main frequency band，distribution density and typical frequency values，are obtained after applying FFT（Fast Fourier Transform）. The variation laws and causes of discharge radiation characteristics along with traction current and driving speed are carried out. The study results show that，under the condition of high current and high speed，the electromagnetic radiation energy of pantograph-catenary discharge is mainly distributed in the frequency range of 0~100 MHz，of which the most densely distributed frequency band is 45~55 MHz，and the electromagnetic radiation intensity of arc initiation is greater than that of arc extinction. In the traction current range of 100~700 A，the amplitude of the discharge radiation field increases with the increase of the traction current. Under the same traction current，the frequency value corresponding to the frequency-domain peak value gradually decreases with the increase of the driving speed. The study results provide experimental data and reference basis for the mechanism research and protection of the electromagnetic radiation interference caused by the pantograph-catenary arc. © 2022 Electric Power Automation Equipment Press. All rights reserved.
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页码：177 / 183
页数：6
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