传输线中趋肤效应的介绍及仿真  

Introduction and simulation of skin effect of transmission line

作　　者：卢秋朋 张清鹏[1] 秦润杰 

机构地区：[1]天津市特种设备监督检验技术研究院,天津300192

出　　处：《电子测量技术》2015年第6期27-30,共4页Electronic Measurement Technology

基　　金：国家质检总局科技计划(2012QK293)项目

摘　　要：受趋肤效应的影响,在导线中分别流经高频电流和直流电流时,在导线横街面上的电流密度分布情况截然不同。详细介绍了趋肤效应的理论基础、考虑趋肤深度时导线电阻的计算公式,并利用Ansoft Maxwell电磁场仿真软件分别对圆形导线和矩形导线2种导线在不同频率情况下的趋肤效应进行了建模仿真,得出了导线的趋肤效应现象图。并通过对比不同频率时导线横截面的电流密度分布情况,验证了随着频率的升高,趋肤深度将越小,导线的电阻损耗越大。Affected by the influence of skin effect ,the current density distribution on the conductor cross‐section is completely different when there is high frequency current and direct current flowing through the conductor respectively . In this article ,the theoretical basis of skin effect and the calculation formula of conductor resistance were introduced . With the help of Ansoft Maxwell electromagnetic field simulation software ,a circular wire and a rectangular wire were modeled and simulated ,and the figures of skin effect under different current frequency were given .It is also proved that with the increase of current frequency ,the skin depth will be smaller and the resistance loss of the wire will be greater by comparing the current density distribution on the conductor cross‐section under different frequency .

关 键 词：趋肤效应 趋肤深度 ANSOFT MAXWELL 仿真 

分 类 号：TM15[电气工程—电工理论与新技术]