电子测量技术
電子測量技術
전자측량기술
ELECTRONIC MEASUREMENT TECHNOLOGY
2015年
6期
27-30
,共4页
趋肤效应%趋肤深度%Ansoft Maxwell%仿真
趨膚效應%趨膚深度%Ansoft Maxwell%倣真
추부효응%추부심도%Ansoft Maxwell%방진
skin effect%skin depth%Ansoft Maxwell%simulation
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。
受趨膚效應的影響，在導線中分彆流經高頻電流和直流電流時，在導線橫街麵上的電流密度分佈情況截然不同。詳細介紹瞭趨膚效應的理論基礎、攷慮趨膚深度時導線電阻的計算公式，併利用Ansoft Maxwell電磁場倣真軟件分彆對圓形導線和矩形導線2種導線在不同頻率情況下的趨膚效應進行瞭建模倣真，得齣瞭導線的趨膚效應現象圖。併通過對比不同頻率時導線橫截麵的電流密度分佈情況，驗證瞭隨著頻率的升高，趨膚深度將越小，導線的電阻損耗越大。
수추부효응적영향，재도선중분별류경고빈전류화직류전류시，재도선횡가면상적전류밀도분포정황절연불동。상세개소료추부효응적이론기출、고필추부심도시도선전조적계산공식，병이용Ansoft Maxwell전자장방진연건분별대원형도선화구형도선2충도선재불동빈솔정황하적추부효응진행료건모방진，득출료도선적추부효응현상도。병통과대비불동빈솔시도선횡절면적전류밀도분포정황，험증료수착빈솔적승고，추부심도장월소，도선적전조손모월대。
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 .
