Prediction and Measurement Techniques for Radiated EMI of Power Converters with Cables

作     者：Zhedong Ma Shuo Wang 

作者机构：Power Electronics and Electrical Power Research LabUniversity of Florida32611 USA 

出 版 物：《Chinese Journal of Electrical Engineering》 (中国电气工程学报（英文）)

年 卷 期：2022年第8卷第4期

页      面：1-10页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Radiated electromagnetic interference power converters power cables spectrum analyzer resolution bandwidth 

摘      要：Recently,radiated electromagnetic interference(EMI)has become a research hotspot in power electronics systems,as the switching frequencies of power electronics systems have increased significantly with the adoption of wide-bandgap *** this article,a generalized radiated EMI model for power electronics converters with power cables is first *** radiated EMI model is then developed for a flyback power converter with critical ground impedance *** on the developed model,accurate high-frequency parameter extraction techniques and a radiated EMI prediction technique are developed and experimentally ***,essential measurement techniques are identified and developed to accurately extract parameters for accurate EMI *** effects of the resolution bandwidth of the spectrum analyzer and critical PCB ground impedance on the radiated EMI are experimentally ***’s impact on the common-mode(CM)choke’s impedance and the radiated EMI is further *** for minimizing the undesired near-field couplings in parameter extraction are *** predicted EMI properly agreed with the measured EMI in the range of 30-230 MHz based on the EN550323 m class B standard.