Genetic Algorithm based Optimal Operation of a Modified H-bridge single phase Multilevel Inverter

Abstract

In this paper a modified H-Bridge based multilevel inverter topology has been implemented using genetic algorithm to reduce the total harmonic distortion present in the multilevel inverter output. Using GA based optimization technique, the switching angles at which the THD is minimum have been calculated and the THD obtained with the proposed technique is reduced drastically. Detailed mathematical formulation is presented in the paper, and computer simulation is performed in MATLABo/Simulink. The results are obtained at different loads and presented and discussed in the paper.