Three phase multilevel inverter with variable frequency output

Abstract

• Three phase multilevel inverter can be used to convert DC to AC power. • DC voltage from renewable energy sources or batteries can be converted to AC voltage to power up equipments or appliances. • Particle Swarm Optimization (PSO) is used to calculate the switching angle in order to eliminated the voltage harmonics. • The advantage of this product is that it can produce variable frequency output waveform. • Can be use for variable speed drive with iow Total Harmonic Distortion (THD).