弓网电弧实验系统与辐射噪声实验研究  

Design of pantograph arc experiment system and study on radiated noise

作　　者：郭凤仪[1] 张艳立[1] 王智勇[1] 王宝巍[1] 王喜利[1] 张建飞[1] 

机构地区：[1]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105

出　　处：《电工电能新技术》2015年第12期49-53,共5页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金资助项目(51277090)

摘　　要：近年来随着电力机车运行速度的不断提高,弓网电弧现象越来越严重,已成为电力机车安全运行的隐患。为深入研究弓网电弧的形成机理和抑制方法,设计了一套弓网电弧电磁噪声实验系统,该系统实现了屏蔽环境下弓网电弧的模拟。利用该系统,通过控制接触压力、电流和运行速度三个条件进行了弓网电弧辐射电磁噪声的测量实验。结果表明,弓网系统电磁噪声干扰频段主要在频率30~500MHz内,其中干扰强烈频段在30~60MHz内。电流越大,辐射噪声幅值越大,干扰频率带宽越宽。随着压力的逐渐增大,辐射噪声幅值先减小后增大,干扰频率带宽先变窄后变宽。In recent years,with the continuous increasing running speed of electric locomotive,pantograph arc becomes more and more serious and has become a kind of security risk of electric railways operation. To further study the formation mechanism and suppression methods of pantograph arc,a pantograph arc experimental system was developed. The system realizes the simulation of pantograph arc in a shielded environment. Using this test system,by controlling the contact pressure,current and speed,we performed a set of pantograph arc radiation electromagnetic noise measurement experiment. The results showed that the electromagnetic noise interference of the pantographcatenary system is mainly in the frequency band of 30 M ~ 500 MHz,and the strongest band is in 30 M ~ 60 MHz.With the increase of contact current,electromagnetic noise amplitude increases gradually as well as the interference frequency bands. With the increase of contact pressure,electromagnetic noise amplitude firstly increases and then decreases,and the interference frequency bands firstly become narrow and then widen.

关 键 词：弓网电弧 电磁噪声 辐射噪声 滑动电接触 

分 类 号：U221[交通运输工程—道路与铁道工程] U264.34[机械工程—车辆工程]