基于CDEGS的地铁杂散电流仿真研究  

Study on CDEGS Based Subway Stray Current Simulation

作　　者：于凯[1] 朱峰[1] 刘光辉[1] 苟江川 

机构地区：[1]西南交通大学电气工程学院

出　　处：《电气化铁道》2014年第6期44-48,共5页Electric Railway

基　　金："武汉地铁;城市轨道交通对天河国际机场的电磁影响评价"项目编号:whjt2012

摘　　要：分析了解析法求解地铁杂散电流时存在的问题,提出了用CDEGS软件仿真地铁杂散电流的方法,建立了仿真地铁杂散电流的模型,得到了理想状况、部分轨道绝缘受损、部分轨道纵向电阻变大3种情况下的杂散电流分布结果,分析了轨道绝缘受损、纵向电阻变大对增大地铁杂散电流的特点,得出了轨道绝缘受损对杂散电流的增加是"点"作用,纵向电阻变大对杂散电流的增加是"段"作用的结论。Problems are analyzed witch in analytical method for solving metro stray current, and then a method is proposed that using the CDEGS software to simulate the metro stray current. Based on that software, a model is established to simulate the stray current, and results are obtained in three cases which are ideal condition, the condition that part of the rail insulation is damaged and part of the rail longitudinal resistance becomes large. By analyzing the simulation results, features are obtained that rail insulation decrease and longitudinal resistance increase for increasing the metro stray current. And conclusion are drawn that the rail insulation decrease has a ＂point＂ effect on increasing the stray current and the rail longitudinal resistance increase has a ＂segment＂ effect.

关 键 词：CDEGS仿真 地铁杂散电流 轨道绝缘 轨道纵向电阻 

分 类 号：U228.1[交通运输工程—道路与铁道工程]