3-D Analysis of Loss Distribution in an Interior Permanent Magnet Motor Driven by PWM Inverter

Abstract

Electrical loss of an interior permanent magnet motor (IPM motor) driven by the pulse width modulation inverter (PWM inverter) is analyzed using the three-dimensional finite element method (3-D FEM). The distributions of the eddy currents in the permanent magnet, the iron loss characteristics, and the torque characteristics were quantitatively clarified.