电器与能效管理技术Issue(23)：19-22,26,5.DOI:10.16628/j.cnki.2095-8188.2016.23.004
基于向量拟合法的电感阻抗特性建模
Modeling of Inductors' Impedance Characteristic Based on Vector Fitting Method
摘要
Abstract
Conducted electromagnetic interference(EMI) noise is generated by power converters with high switching frequency.EMI filters are thus widely used to reduce these conducted noise.As the main electromagnetic component of power converters and EMI filters,the modeling of inductors' impedance characteristic is very important.The vector fitting method was used to extract the impedance parameters of inductor,thus its high frequency equivalent circuit was modeled.Based on impedance measurement,a rational function approximation fitting algorithm was cooperated in this method.The rational function's one time term coefficient,the constant term coefficient,zero and pole are solved to extract the parameters in the model.The applicability of the method was proved by comparing the simulation result with the experimental result of a CM choke.It shows that this method is applicative and accurate in the frequency band of vehicle equipments' conducted noise requirements.关键词
电感器建模/向量拟合法/Pspice电路仿真/电动汽车/电磁兼容Key words
inductor modeling/vector fitting method/Pspice circuit simulation/electric vehicle/electromagnetic compatibility分类
信息技术与安全科学引用本文复制引用
陈青华,叶尚斌,姚勇涛,沈玉琢,张逸成..基于向量拟合法的电感阻抗特性建模[J].电器与能效管理技术,2016,(23):19-22,26,5.基金项目
国家863计划项目(2011AA11A265) （2011AA11A265）
