International Journal of Engineering & Science (IJES)
Application of multilevel inverter for high power equipment in industry has become popular because of its high-quality output waveform. In this paper, a three phase 11 level is proposed with reduced number of switches. An algorithm has been generated on the basis of optimized harmonic stepped waveform technique to find out firing angle for multilevel inverter to reduce harmonic content present in output. The proposed multilevel inverter has been validated using MATLAB R2009a software and firing angle was calculated using program executed by MATLAB R2009a.