Equivalent thermal model of a permanent magnet synchronous machine

Abstract

Permanent magnet (PM) motors are popular choices for hybrid electric vehicle (HEV) powertrain applications. Compared to other singly fed electric machines, permanent magnet motors are smaller, lighter, more efficient and reliable.

The performance of the PM motor would degrade due to the heat generated. Therefore, it is necessary to develop a thermal model which studies the heart process in the PM motor.

In this project, a simplified a thermal model was developed, which is represented by a thermal circuit with thermal resistances representing the heart process within this motor.