摘要
介绍了磁场屏蔽效能公式的物理意义和计算方法,并以此为基础,重点研究了动车组电缆线槽对低频磁场的屏蔽作用。利用COMSOL多物理场耦合仿真分析软件,分析了线槽厚度、电流频率、电缆与线槽距离等屏蔽线槽主要参数对屏蔽效果的影响,同时分析了两根电缆和三相电缆的磁场分布。
The physical meaning and the computing method of electromagnetic shielding effectiveness formula are introduced.On this basis,the shielding effect of electric multiple unit(EMU)cable trough on the low-frequency magnetic field is mainly studied.By using the COMSOL Multiphysics simulation analysis software,the influence of parameters like the channel thickness,the current frequency,the distance between cable and slot on the shielding effect of the low-frequency magnetic field,the magnetic field distribution of two cables and three-phase cables are analyzed.
作者
郭强
张宁
GUO Qiang;ZHANG Ning(Zhijiang Lab,311100,Hangzhou,China)
出处
《城市轨道交通研究》
北大核心
2020年第9期89-92,97,共5页
Urban Mass Transit
基金
之江实验室基金项目(113009-AA2003)
中国博士后科学基金项目(2019M662121)。
关键词
动车组
电缆线槽
低频磁场
屏蔽效能
motor train unit
cable trough
low frequency magnetic field
shielding effectiveness
作者简介
第一作者:郭强,工程师。
