Power Loss Analysis of Advanced-Neutral-Point-Clamped Converter with SiC MOSFETs and Si IGBTs

Abstract

The aim of the paper is the evaluation of the advanced-neutral-point-clamped (ANPC) converter with two SiC MOSFETs and four Si IGBTs per a single phase leg. The main focus is put on the high switching frequency operation capability. Power loss calculation results of ANPC converter operating with 30 kHz switching frequency are presented. Both switching and conduction losses are evaluated, as well as power loss distribution among semiconductor devices. The results are compared to the conventional neutral-point-clamped (NPC) converter.