Distributed Winding IPM Motor with an Amorphous Metal Stator Core

Abstract

We have been studying the application of amorphous metal with low loss to axial gap motors. However, because radial gap motors are used extensively, we are also considering a motor structure involving the application of amorphous metal to radial gap motors. In this study, we analyzed and evaluated an IPM motor to evaluate the improvement in efficiency caused by the use of amorphous metal for the entire stator cores. Creating an efficiency map of the prototype and comparing the efficiencies confirmed a significant improvement in efficiency in the low torque and high frequency bands.