Performance studies of three-phase cascaded H-Bridge and Diode-Clamped multilevel inverters

This paper discusses a concept of two types multilevel inverters including of Cascaded H-Bridge and Diode-Clamped for harmonic reduction on high power applications. Normally, multilevel inverters can be used to reduce the harmonic problems in electrical distribution systems. These studies focused on the performance and analysis of a three phase multilevel inverters including Cascaded H-Bridge and Diode Clamp based on SPWM approaches. Based on the various simulations on nine levels of multilevel inverters, we found that the Total Harmonics Distortion for voltage (THDv) output for both multilevel inverters is decreased. It also produces lower contents based on the IEC standard.