Comparison of Modulation Methods for Three-Phase Multi-Level Voltage-Source Inverter from Conduction and Switching Losses Aspect

The designer of static power converters must model the losses of converter switches to optimize the performance of the system. This paper applies functional simulation model for analysis and comparison of conduction and switching losses in a multi-level voltage-source inverter using alternative modulation methods. This concept is based on semiconductor device characteristics modeling and is implemented with the help of MATLAB/Simulink. The method is fairly accurate and simple and takes a short run-time of simulation without any convergence problem