您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第12卷    第5期    总第68期    2015年10月

[PDF全文下载]    [Flash在线阅读]

    

文章编号:1672-7029(2015)05-1185-06
弓网系统接触电阻特性的研究
朱宁俊,李春茂,吴广宁,高国强,吴杰

(西南交通大学电气工程学院,四川成都 610031)

摘 要: 弓网接触电阻是衡量弓网接触性能的重要指标,而牵引电流、接触压力和滑动速度是影响弓网接触电阻的重要因素。通过测试不同牵引电流条件下的弓网静、动态接触电阻的试验,阐明弓网静、动态接触电阻随牵引电流变化的趋势,以及接触压力与滑动速度对弓网动态接触电阻的影响效果,并分析这3个影响因素的作用机制。研究结果表明:弓网静态和动态接触电阻都随电流的增大而减小,且下降趋势逐渐趋于平缓;相同牵引电流条件下,接触压力越大,则动态接触电阻越小,滑动速度越大,则动态接触电阻越大;滑动速度越大,动态接触电阻随牵引电流增大而减小的下降趋势越陡峭。

 

关键字: 弓网系统;接触电阻;牵引电流;接触压力;滑动速度

Investigation on characteristics of the contactresistance of pantograph-catenary system
ZHU Ningjun,LI Chunmao,WU Guangning,GAO Guoqiang,WU Jie

School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China

Abstract:The contact resistance between pantograph and catenary is an important indicator of contact performance of pantograph-catenary system. The traction current, contact pressure and sliding speed are important factors affecting contact resistance between pantograph and catenary. By the trial of observing static and dynamic contact resistance of pantograph-catenary system on conditions of different current, the variation tendency of contact resistance with traction current, the effects of contact pressure and sliding speed on dynamic contact resistance were expounded, and the three factors’ effecting mechanisms were analyzed. Studies show that: static and dynamic contact resistance both decrease with increasing current, meanwhile the rate of decline tend to smooth. In the same traction current, greater contact pressure leads to the smaller dynamic contact resistance and faster speed would result in the greater dynamic contact resistance. Besides, faster speed would lead to the steeper tendency of the dynamic contact resistance with the increase of current.

 

Key words: pantograph-catenary system; contact resistance; traction current; contact pressure; sliding speed

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn