弓网系统静态接触电阻特性研究  

Characteristics of Static Contact Resistance Between Pantograph and Catenary

作　　者：王万岗[1,2] 梁明亮[3] 吴广宁[1] 高国强[1] 王波[1] 杨明明[1] 刘东来[1] 李大建[1] 李天鸷[1] 

机构地区：[1]西南交通大学电气工程学院,成都610031 [2]成都纺织高等专科学校,成都611731 [3]郑州铁路职业技术学院电子工程系,郑州450052

出　　处：《高压电器》2012年第1期30-34,共5页High Voltage Apparatus

基　　金：教育部新世纪优秀人才基金(NCET-07-0718);教育部博士点新教师基金项目(200806131015);国家973计划资助项目(2011CB11100)~~

摘　　要：弓网良好接触是保障机车稳定受流的关键,合适的弓网接触压力是弓网稳定可靠受流的基础。笔者研究了不同接触压力、牵引电流条件下的弓网静态接触电阻,并得到了弓网接触电阻的数学表达式。研究结果表明：弓网静态时接触电阻随接触压力、牵引电流增大而减小,接触压力小于70~80 N,接触电阻所接触压力的增加,接触电阻激剧减少;大于70~80 N后,接触电阻随接触压力的变化不明显,近似恒定关系。Perfect contact and contact force of pantograph and catenary ensures locomotive to receive stable current.This paper investigates the static contact resistance between pantograph and catenary under different contact pressure and traction current,and obtains a formula of the contact resistance.The results show that the static contact resistance between pantograph and catenary decreases with the increase in contact pressure and traction current,and the contact resistance decreases rapidly when contact force is below 70~80 N;while when contact force exceeds 70~80 N,the contact resistance decreases slowly with increasing contact force.

关 键 词：弓网系统 电接触 接触电阻 接触压力 

分 类 号：TM922.3[电气工程—电力电子与电力传动] U225.3[交通运输工程—道路与铁道工程]