Level shifted PWMs comparison for a 5-level modular multilevel converter (MMC) topology inverter

摘要

This paper presents the multicarrier PWM techniques studies based on the three Level shifted based modulation techniques; Phase Disposition PWM (PDPWM), Phase opposition disposition PWM (PODPWM), Alternate phase opposition disposition PWM (APODPWM) of a MMC based inverter and a comparative study is done based on total harmonics, voltage profile quality and load current waveforms. The Simulation has been carried out for the five-level MMC inverter specific modulation types, similarities and performance using MATLAB/Simulink. The results were verified.