Analysis and Reduction of Cogging Torque in Double-Stator Axial-Flux Permanent-Magnet Disk Synchronous Generator With Soft Magnetic Composite Core

This paper first presents a double-stator disk synchronous generator. Then, the stator slot width, single stator disk rotating angle, magnet skewing angle are taken as optimization parameters to analyze their effects on cogging torque. Finally, by reasonably selecting the size of the optimization parameters, the peak cogging torque can be reduced by 94%, while other performance requirements remain basically unchanged.