Harmonic elimination of multilevel inverters by moth-flame optimization algorithm

Abstract

This paper solves harmonic elimination problem, and minimizes total harmonic distortion by a recently developed heuristics: moth-flame optimization method. 5th and 7th order harmonics are eliminated for a seven level cascaded multilevel inverter, and 5th, 7th, 11th and 13th order harmonics are eliminated for an eleven level cascaded multilevel inverter. Simulation results of a seven level cascaded multilevel inverter and an eleven level cascaded multilevel inverter are provided for different levels of modulation indexes. The simulation results show that moth-flame optimization model solves the harmonic elimination problem, total harmonic distortion minimization problem efficiently.