Using a Genetic Algorithm for Selective Harmonic Elimination of Multi-Level Inverters: A Comparative Analysis
Keywords:
Genetic algorithm, Multilevel inverter, Selective harmonic elimination (SHE), Three phase cascade H-bridge inverter, Total harmonic distortion (THD).Abstract
Harmonic reduction in cascaded multilevel voltage source inverters is the main topic of this article. In this case, the key idea is to use the right switching angles to get rid of certain harmonics. The optimal switching angles for reducing total harmonic distortion (THD) and eliminating selected lower-order harmonics with fundamental components at the appropriate levels are
achieved in this study using the genetic algorithm (GA) optimization approach. In order to decrease THD and remove low-order harmonics, the optimal switching angles are obtained by simulating the proposed approach on an inverter with seventeen and fifteen levels, respectively. In terms of taking THD into account, comparisons have been made between seventeen and
fifteen levels.
