A method to reduce circulating current and common mode voltage for paralleled converters using three-level space vector modulation.

Abstract

For high power applications, paralleling converters is a popular approach to increase the power capacity of the system. Circulating current has been a major concern for the implementation of paralleled converters. This project proposes a three-level space vector modulation (SVM) scheme for a system with two paralleled voltage source converters (VSCs) with common mode inductor (CMI) or single phase inductors.