Prediction of the conducted EMI in PWM converter system with parasitic parameters considered  

作　　者：LIANG Bin WEI KeXin YUE YouJun 

机构地区：[1]Tianjin Key Laboratory of Control Theory&Applications in Complicated Systems,Tianjin University of Technology,Tianjin 300384,China [2]School of Electrical Engineering&Automation,Tianjin University,Tianjin 300072,China

出　　处：《Science China(Technological Sciences)》2012年第10期2829-2836,共8页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 50977063);Key Science and Technology Supporting Project of Tianjin (Grant No. 09ZCKFGX01800)

摘　　要：This paper presents a new approach for modeling of the conducted electromagnetic interference(EMI) prediction for widely used converter systems.Coupling paths and mechanism of differential mode(DM) interference and common mode(CM) interference have been analyzed.Models to predict the high-frequency noise of PWM converter system are created.A direct calculation method in frequency domain is proposed for the deduction of frequency spectrum.A method is given for obtaining the parasitic parameters and topological structure of the model.An experimental investigation of the conducted emission from an actual high-power rectifier system is described.The validity of the models is confirmed by comparison to laboratory measurements.

关 键 词：parasitic parameter conducted EMI common mode（CM） differential mode（DM） 

分 类 号：TN86[电子电信—信息与通信工程] TM46[电气工程—电器]