Electromagnetic Force Analysis of Interior Permanent Magnet Synchronous Motors With T-Shaped Notching Rotor

This paper analyses the electromagnetic force(EMF) waves of a permanent magnet synchronous motor with T-shaped slots in the rotor. The analytical expressions for the EMF waves of the proposed motor are firstly derived from the theoretical aspects. And then the correctness of the theory and the ability of the scheme to effectively reduce the electromagnetic vibration of the motor are verified by means of finite element simulation calculation. In addition, prototypes were built and verified with relevant experiments.