定子无铁心轴向磁通永磁同步电机研究进展综述

The coreless stator axial flux permanent magnet synchronous motor (AFPMSM) has received more and more attention due to its compact structure, high power density and torque density, no core loss and high efficiency. In the occasions requiring space compactness and high torque density, it has broad application prospects. This paper introduced the typical topology of the coreless stator AFPMSM, analyzed the design and analysis method and a series of optimization methods for the electromagnetic performance of such motors, discussed the thermal performance analysis optimization and mechanical performance analysis of such motors, and summarized the control strategy proposed by the characteristics of such motor winding inductance is small and the research on the weak magnetic expansion speed. Finally, the application and future development direction of the coreless stator AFPMSM research field was prospected.