Design of Magnetic Barrier Angle of Permanent Magnet Assisted Synchronous Reluctance Motor Based on Minimum Torque Ripple

Abstract

Taking permanent magnet assisted synchronous reluctance motor (PM-SynRM) as the research object, aiming at the problem of large torque ripple, Proposing a design method of motor magnetic barrier angle based on minimum torque ripple. Firstly, analyzing the source of torque ripple of permanent magnet assisted synchronous reluctance motor, and offsetting the positive and negative ripple to weaken the torque ripple. Secondly, deducing the angle between two adjacent magnetic barriers and included angle of magnetic barrier of the permanent magnet assisted synchronous reluctance motor with different slot pole matching and the number of magnetic barrier layers. Finally, designing and manufacturing the prototype according to the deduced magnetic barrier angle, and testing motor performance with bench. The test results are basically consistent with the simulation results. The results show that the magnetic barrier angle design method can minimize the torque ripple of the motor.