Torque Ripple Analysis and Suppression of Dual-rotor Axial Flux Permanent Magnet Synchronous Motor

Axial flux permanent magnet synchronous motor is superior to other types of motors in terms of efficiency, torque and size. However, torque ripple is a problem that cannot be ignored in axial flux permanent magnet synchronous motor, which further increases the vibration and noise of the motor and reduces the control accuracy. Therefore, this paper will suppress torque ripple by optimizing the method of permanent magnet tilt and chamfering. Taking the 16-pole 24-slot dual-rotor single-stator axial flux permanent magnet synchronous motor as an example, the finite element method is used to simulate and analyze different tilt angles, and the most suitable tilt angle that does not affect the performance of the motor is determined. The optimized motor model is simulated and analyzed, and the torque ripple is reduced by 64%, which verifies the feasibility of the method.