摘要
针对目前市场上常用的功率变频器——PWM变频器的应用,从几个方面分析了的其电磁干扰(EMI)产生机理,包括整流测、逆变侧和过电压产生。然后,介绍了几种常见滤波器,并对RLC滤波器参数进行设计,并提出了LC-RLC级联滤波器的拓扑结构。最后,利用Matlab/Simulink建立了相应的几种滤波器仿真模型,验证所设计的滤波器对了EMI抑制技术的有效性。
In view of the application of PWM inverter which commonly used in present market, we analyze the mechanism of electromagnetic interference （EMI） from some aspects, including rectifier and inverter side and overvoltage. In this paper, the electromagnetic interference filter is introduced, and the parameters of the RLC filter are designed. The final LC-RLC cascade filter topology structure is put forward. Finally, simulation model is established by Matlab/Simulink, to verify the effectiveness of the electromagnetic interference suppression technique.
出处
《电测与仪表》
北大核心
2015年第14期93-96,共4页
Electrical Measurement & Instrumentation
基金
三峡大学科研启动基金资助项目(KJ2012B046)
关键词
PWM变频器
电磁干扰
滤波器
仿真
PWM Inverter, Electromagnetic Interference （ EMI）, filter, simulation
