Estimation of iron losses of M3 and M5 magnetic core material with three phase PWM inverter supply

This paper presents a comparision of iron losses of grain oriented magnetic steel with three 3 -phase PWM inverter supply. In this experiment, using 0.23 mm(M3)- thickness, 0.30 mm.(M5)- thick and by setting equal peak fundamental flux density for each test procedure, with 0.3, 0.6, 0.9 -modulation index and 1, 2, 3, 4, 5 kHz.-inverter switching frequencies. The results show the difference of iron losses as modulation index and switching frequency of two thickness of laminates steel. The results will be useful for the criterion of standard designing inverter for low power losses.