开关电源传导EMI仿真与滤波电路设计  

Simulation of the EMI conduction and design of the filtering circuits for the switching power supply

作　　者：蒋云富 卢伟斌 王嘉义 Jiang Yunfu;Lu Weibin;Wang Jiayi(Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]株洲中车时代电气股份有限公司,湖南株洲412001

出　　处：《船电技术》2024年第3期65-69,共5页Marine Electric & Electronic Engineering

摘　　要：本文基于开关电源的高频模型,建立了DC/DC变换器的传导EMI仿真模型,提出了一种基于传导EMI仿真模型进行变换器电磁兼容设计方法,利用仿真结果设计巴特沃斯滤波电路参数,确定衰减目标、输入阻抗和截止频率,最后通过对比仿真验证所设计滤波电路的有效性。Base on the high-frequency model of switching power supply,this paper establishes the EMI conduction simulation model of DC/DC converter,proposes a converter EMC design method according to the EMI simulation model,then adopts the simulation results in the design of Butterworth filter circuit parameters The attenuation target,input impedance and cut-off frequency are thus determined.Finally,the effectiveness of the designed filter circuit is verified by comparative simulations.

关 键 词：传导EMI 高频建模 滤波电路 

分 类 号：TM921[电气工程—电力电子与电力传动]