Selective Harmonic Elimination PWM Technique Implementation for a Multilevel Converter

This paper presents the selective harmonic elimination technique implementation for hybrid seven-level cascaded multilevel converter. The converter configuration is the cascaded connection of a three-level Active neutral-pointclamped (ANPC) converter and an H-bridge per phase, thus forming a hybrid seven-level multilevel converter. The converter is operated by maintaining the switching frequency of a converter to a minimum value using selective harmonic elimination pulse width modulation (SHE-PWM). Analysis of the topology operated under SHE-PWM is presented on the basis of simulation results obtained from MATLAB/SIMULINK.