Reduced Switching State Five-Level High Power Factor Converter

Abstract

In this work, a new multi-point clamped (MPC)- five level converter topology with reduced switching state (RSS) for front end power conversion applications (mainly direct connected wind energy conversion) is proposed. The converter can be modelled and modulated as similar to conventional MPC structured converter topologies without additional clamping diodes and flying capacitors. In addition, the proposed topology requires, minimum total blocking voltage, thereby, reducing losses and improved efficiency. To validate the performance, high scale simulation as well as downscale experimentation is carried out. © 2020 IEEE.