Design and comparison of iron losses mathematical model with single phase and three phase PWM inverter supply

This paper presents the iron losses mathematical model design and prediction of iron losses with PWM Inverter supply. In the procedure, the 1-phase unipolar PWM inverter supply is used to supply the Epstein test apparatus with the 0.5 mm-thick sheet, non-oriented magnetic steel, with 0.3 to 0.9 modulation index and 1-9 kHz. inverter switching frequencies. The test results show that the iron losses by the prediction is nearly the same as that by the experiment. When compare mathematical model design with 1-phase and 3-phase PWM Inverter supply, this mathematical model design is more useful and can apply to the design work in electrical machine equipment.