定子无铁心轴向磁通永磁同步电机研究进展综述

An Overview on Research Progress of Coreless Stator Axial Flux Permanent Magnet Synchronous Motor

定子无铁心轴向磁通永磁同步电机(axialflux permanent magnet synchronous motor,AFPMSM)因其结构紧凑、功率密度和转矩密度大、无铁心损耗、效率高等特点受到越来越广泛的关注,在要求空间紧凑和高转矩密度的场合具有广阔的应用前景。介绍定子无铁心AFPMSM的典型拓扑结构,分析此类电机电磁性能的设计分析方法及一系列优化方法,讨论此类电机热学性能分析优化以及力学性能分析方面的研究,总结针对此类电机绕组电感很小的特性提出的控制策略以及弱磁扩速方面的研究,最后整理了此类电机目前的应用情况,并展望了定子无铁心AFPMSM研究领域今后的发展方向。

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.