The results show that the amplitude of fundamentalvoltage linearly increases with the modulation factor and that the harmonics of the output voltage are markedly reduced.
A key issue in the design of such an inverter is to determine the switching angles so as to produce the fundamentalvoltage and not to generate specific lower order harmonics.
The function of the IGBT inverter is to support utility fundamentalvoltage and to compensate the reactive power. The MOSFET inverter fulfills the function of harmonic current compensation.