Investigation of the Influence of Skewed Slots and Degmagnetization Effects to Line Start Permanent Magnet Assistance Synchronous Reluctance Motors

A permanent magnet assistance synchronous reluctance motor can start directly with a net voltage or power converter via torque control method. However, this has usually higher irreversible demagnetization level in comparison interior motors, due to the fewer magnets rotor slots. In order cope disadvantage, different arrangements of line-start are proposed paper. The V shape taking skewed slots and effect into account short circuit current investigated by finite element approach. efficiency, torque, output model have been also improved. Finally, 3V layered is prototyped verify efficiency motor.