Abstract
In this paper, harmonic elimination problem in multilevel inverters with any number of levels is redrafted as an optimization task. A new method based on particle swarm optimization is proposed to identify the best switching angles with the dual objectives of harmonic suppression and output voltage regulation. The advantages of fundamental frequency harmonic elimination and swarm intelligence are combined to improve the quality of output voltage of multilevel inverters. The validity of the proposed method is proved through various simulation results.
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