COMPARATIVE ANALYSIS OF SELECTIVE HARMONIC ELIMINATION OF MULTILEVEL INVERTER USING GENETIC ALGORITHM

Abstract

An inverter with a cascaded multilevel voltage source that eliminates harmonics is the subject of this article. Here, picking the right switching angles to remove certain harmonics is the main idea. The optimal switching angles for reducing THD and eliminating selected lower-order harmonics with fundamental components at the appropriate levels are achieved in this study using the Genetic Algorithm (GA) optimisation approach. To illustrate the method's efficacy, we run simulations on an inverter with seventeen and fifteen levels to find the optimal switching angles for reducing total harmonic distortion (THD) and eliminating low-order harmonics. In terms of taking THD into account, comparisons have been made between seventeen and fifteen levels.