动车组屏蔽线缆间串扰特性及其试验验证研究  

Research and experiment verification on the crosstalk characteristics of shielded cables in EMU

作　　者：马云双[1,2] 闻映红[3] 张丹[3] 刘志刚[2] 张金宝[3] 

机构地区：[1]南车青岛四方机车车辆股份有限公司,青岛266031 [2]北京交通大学电气工程学院,北京100044 [3]北京交通大学电子信息工程学院电磁兼容实验室,北京100044

出　　处：《仪器仪表学报》2013年第5期1188-1194,共7页Chinese Journal of Scientific Instrument

基　　金：国家自然基金高铁联合重点项目(U1234205);国家自然科学基金项目(61172021);国家重大专项(2011ZX03001-007-01);中央高校基本科研业务费专项资金(2012JBM021)资助

摘　　要：针对动车组设备间互连线缆布置密集、线间串扰难以分析的问题,本文对传输线基本理论进行拓展,建立了两类常用屏蔽电缆的串扰理论模型;然后通过在电磁兼容实验室环境中模拟实验验证该理论模型;进一步结合动车组实际常用的管状型和编织型屏蔽电缆进行仿真。仿真结果表明,一般情况下,屏蔽层两端接匹配负载时,耦合到内芯的串扰小于双端接地的情况;编织屏蔽电缆的内芯串扰明显高于管状屏蔽电缆。Aiming at the problems of the denseness of interconnection cable layout and the difficulty in analyzing the crosstalk of shielded cables among EMU equipment, this paper extends the basic theory of transmission line and es- tablishes the crosstalk theoretical model for the two kinds of commonly used shielded cables. The experiment verifica- tion in EMC laboratory environment validates the proposed theoretical model;and the tubular and braided shielding cables commonly used in EMU are simulated. The simulation results show that in general when the both ends of the shielding layer are connected to matched loads, the crosstalk coupling to the inner core is less than that when both ends are grounded;the inner core crosstalk for braided shielding cable is significantly higher than that for tubular shield cable.

关 键 词：动车组 屏蔽线缆 串扰 

分 类 号：U238[交通运输工程—道路与铁道工程] TN972.1[电子电信—信号与信息处理]