Reduction of cogging torque in Ring Winding Axial Flux Permanent Magnet Motor with Soft Magnetic Composite

Reducing cogging torque in permanent magnet machines is crucial for enhancing performance and minimizing vibrations and noise. This paper presents a method for reducing cogging torque in a Ring Winding Axial Flux Permanent Magnet (RWAFPM) motor using Soft Magnetic Composite (SMC) materials. The motor, designed for electric vehicle applications, is optimized through a genetic algorithm to refine the stator tooth geometry. A comparison of the Improved models with the initial design demonstrates that the use of SMC considerably reduces both torque ripple and cogging torque.