Reduction of Odd Harmonics using Multilevel Inverter with Multi Carrier PWM Techniques

Abstract

The role of multi level inverter's are increasing day by day due to the impact of renewable energy resources. But in general all the renewable resources are in form of DC, but the utilization is in AC form. This paper aims to reduce the harmonic content in the inverter output. The H Bridge seven level is considered in this paper. The multi carrier PWM routineare used to reduce the total harmonic distortions. The simulation result shows the THD level reduction by these methods.