弓网离线接触电流总谐波畸变率的实验研究

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摘要受电弓与接触网(弓网)是电气化铁路中牵引供电系统的重要组成部分,弓网系统在运行过程中会发生离线现象,弓网离线会带来严重的电磁噪声问题.利用弓网电弧电磁噪声实验平台开展了不同条件下的弓网离线实验,分析了弓网离线状态下接触电流的频域特性.采用接触电流总谐波畸变率来表征弓网离线的传导电磁噪声特性,获得了接触电流总谐波畸变率与回流电流,接触压力和滑动速度之间的变化关系,建立了有效的接触电流总谐波畸变率数学模型,为深入研究弓网离线传导电磁噪声提供了实验依据和理论基础.

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	郭凤仪
	王喜利
	王智勇
	王丹
	王宝巍

关键词 ：弓网离线, 传导电磁噪声, 总谐波畸变率, 电磁兼容

Abstract：The pantograph-catenary system is an important component of the electrified railway traction power supply system. The off-line phenomenon often occurs during the operation of pantograph-catenary system. The off-line phenomenon will lead to serious electromagnetic noise problem. Some off-line experiments were carried out with self-developed experimental platform under different experimental conditions. The frequency domain characteristics of contact current in off-line state were analyzed. The total current harmonic distortion rate (THD) was used to represent the characteristic of conductive electromagnetic noise caused by off-line phenomenon. The relationships between THD and loop current, contact pressure and sliding speed were obtained. The mathematic model of THD was established. It can provide experimental and theoretical basis for further study on conductive electromagnetic noise of pantograph-catenary system.

Key words： Pantograph-catenary off-line conductive electromagnetic noise total harmonic distortion rate electromagnetic compatibility

收稿日期: 2014-09-10 出版日期: 2015-09-14

PACS:

TM501

基金资助:国家自然科学基金项目(51277090),辽宁省教育厅重点实验室基础研究项目(LZ2014024)

作者简介: 郭凤仪男,1964年生,教授,博士生导师,长期从事电接触理论及其应用,智能电器的研究.王喜利男,1986年生,博士生,研究方向为电接触理论及其应用.

引用本文:

郭凤仪,王喜利,王智勇,王丹,王宝巍. 弓网离线接触电流总谐波畸变率的实验研究[J]. 电工技术学报, 2015, 30(12): 261-266. Guo Fengyi,Wang Xili,Wang Zhiyong,Wang Dan,Wang Baowei. Experimental Research on Total Harmonic Distortion of Contact Current Caused by Pantograph-Catenary Off-Line. Transactions of China Electrotechnical Society, 2015, 30(12): 261-266.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I12/261

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