Efficiencyand EMI Analysisfora ZVS-SVM ControlledThree-PhaseBoostPFC Converter

TheZVS-SVMcontrolled three-phase boost rectifier can realize ZVS operation forallswitching devices. Inaddition, the anti-parallel diodereverse recovery ofallswitch devices iswell suppressed. Moreover, SVM canberealized withswitching devices operating atafixed switching frequency. Inthis paper, thesoft switching condition oftheZVS-SVMcontrolled three-phase boost PFCisanalyzed. Therelationship between theefficiency oftheconverter andthecircuit resonant parameters isstudied. TheEMI noise oftheproposed converter inhardswitching andsoft switching conditions isalso investigated. Theanalysis results areverified bya10kWprototype. I.INTRODUCTION

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