Reduce Harmonics in Single Phase 28- Echelon Cascaded Multilevel Inverter with Filter

Abstract

This work proposed to cascaded H-bridge multilevel inverter output voltage level is modified and therefore total harmonic Distortion has minimized. Hence this work mainly focused on 27-level cascaded inverter using three H-bridge units. Therefore this method evaluate both single and three phase cascaded H-bridge multilevel inverter reduced specific harmonics and minimized switching loss, electromagnetic interference, and the output voltage gives low total harmonic distortion. In this cascaded multilevel inverter used one separate power source for each H-bridge unit. It was present required multilevel voltage output wave from, the cascaded multilevel inverter topology can overcome some of its limits the conventional method and modified the output voltage level of 13-level cascaded multilevel inverter. This work proposed also used filter circuit to minimize a high amount of harmonics.