Abstract

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.

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