抄録
This paper describes the influence of the PWM inverter harmonic loss on the concentrated winding interior permanent magnet synchronous motor (IPMSM) characteristics by using a finite element method (FEM) analysis and several measurements. In the measurement, the PWM inverter harmonic loss was evaluated by using a PWM inverter and a sinusoidal power supply. By using the FEM analysis, it was confirmed that the PWM inverter harmonic mainly caused an increase of eddy current losses in the magnetic steel sheet and the permanent magnet. Therefore, we presented that the higher inductance of the motor is effective to reduce the harmful effects of the PWM inverter harmonic.
