编组形式对动车组接地回流分布规律的影响  

Influence of Marshalling Form on Distribution Law of Grounding Reflux of EMU

作　　者：赵雪冬 高国强[1] 田志强 包晗 李谧 刘凯[1] ZHAO Xuedong;GAO Guoqiang;TIAN Zhiqiang;BAO Han;LI Mi;LIU Kai(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 630031,China)

机构地区：[1]西南交通大学电气工程学院,四川成都630031

出　　处：《电工技术》2021年第22期137-139,142,共4页Electric Engineering

摘　　要：长编组动车组接地系统比标准动车组更复杂,接地方式的优劣直接关系到动车组运行性能的好坏。基于MATLAB/Simulink仿真软件建立了8编组及16编组动车组的接地回流仿真模型,通过现场试验验证仿真模型的正确性。基于长编组动车组接地回流仿真模型,分析其接地电流的分布规律,发现工作接地电流占比与编组形式无关,约为总接地电流的60%;16编组头车、尾车接地电流是8编组的2倍;两种编组形式接地电流相位基本相同,在8车处接地电流相位相反。以上结论为制定长编组动车组接地方式提供了理论依据。The grounding system of long marshalling EMUs is more complicated than that of standard EMUs,and the quality of the grounding method is directly related to the performance of the EMUs.Based on the MATLAB/Simulink simulation software,the simulation model for the ground reflux of the 8-group and 16-group EMUs are built,and the correctness of the simulation models are verified through field tests.Based on the reflux model of long marshalling EMUs,the distribution of grounding current is analyzed.It is found that the proportion of working grounding current has nothing to do with the marshalling form,and it is about 60%of the total grounding current.The ground current of the head and tail cars of the 16 group is twice that of the 8 group.The phases of the ground currents of the two groups are basically the same,and the phases of the grounding current are opposite at 8 cars.The above conclusions provide a theoretical basis for the formulation of grounding methods for long marshalling EMUs.

关 键 词：接地回流 动车组 长编组 接地方式 SIMULINK 

分 类 号：U221[交通运输工程—道路与铁道工程]