轴向磁场磁通切换永磁(Axial Field Flux-Switching Permanent Magnet,AFFSPM)电机是一种新型的盘式双凸极电机。以一台三相12/10极AFFSPM电机为例,在介绍其结构特点的基础上,采用全场域三维有限元分析方法,综合考虑感应电势和齿槽转矩...轴向磁场磁通切换永磁(Axial Field Flux-Switching Permanent Magnet,AFFSPM)电机是一种新型的盘式双凸极电机。以一台三相12/10极AFFSPM电机为例,在介绍其结构特点的基础上,采用全场域三维有限元分析方法,综合考虑感应电势和齿槽转矩两个方面,对该电机定子结构参数,包括定子齿宽、槽口宽及永磁体磁化厚度进行优化。对AFFSPM电机的进一步研究具有重要的实际意义。展开更多
In this paper,key dimensions of a co-axial dual-mechanical-port flux-switching permanent magnet(CADMP-FSPM)machine for fuel-based extended range electric vehicles(ER-EVs),including split ratio,stator/rotor pole arcs,r...In this paper,key dimensions of a co-axial dual-mechanical-port flux-switching permanent magnet(CADMP-FSPM)machine for fuel-based extended range electric vehicles(ER-EVs),including split ratio,stator/rotor pole arcs,rotor yoke thickness,etc.,are analyzed and optimized.Firstly,the topologies and operation principles of an exampled 3-phase CADMP-FSPM are introduced briefly,in which an inner-rotor FSPM machine with 12-stator-slots/10-rotor-poles for high-speed generation and an outer-rotor FSPM machine with 12-stator-slots/22-rotor-poles for low-speed motoring are assembled co-axially.Then,the relationship between the key dimensions and electromagnetic performance,particularly for electromagnetic torque(power),of the CADMP-FSPM machine is studied by 2D-finite element analysis(FEA).Further,the reasonable matches of split ratio,rotor/stator pole arcs and rotor yoke are determined and the original CADMP-FSPM machine is optimized correspondingly.Finally,the static characteristics,including no-load PM flux-linkage,electro-motive-force(EMF),winding inductances,cogging torques and electromagnetic torques,of the original and optimized machines are compared by 2D-FEA.The results verify that the optimized CADMP-FSPM machine can exhibit improved torque characteristics than the original one,i.e.,the torque ripples of the inner and outer machines can be reduced by 22.7%and 4.7%,respectively,and the average torque of the inner and outer machines can be increased by 0.43Nm and 2Nm,respectively.展开更多
文摘轴向磁场磁通切换永磁(Axial Field Flux-Switching Permanent Magnet,AFFSPM)电机是一种新型的盘式双凸极电机。以一台三相12/10极AFFSPM电机为例,在介绍其结构特点的基础上,采用全场域三维有限元分析方法,综合考虑感应电势和齿槽转矩两个方面,对该电机定子结构参数,包括定子齿宽、槽口宽及永磁体磁化厚度进行优化。对AFFSPM电机的进一步研究具有重要的实际意义。
基金This work was supported by The National Basic Research Program(973 Program)(2013CB035603).
文摘In this paper,key dimensions of a co-axial dual-mechanical-port flux-switching permanent magnet(CADMP-FSPM)machine for fuel-based extended range electric vehicles(ER-EVs),including split ratio,stator/rotor pole arcs,rotor yoke thickness,etc.,are analyzed and optimized.Firstly,the topologies and operation principles of an exampled 3-phase CADMP-FSPM are introduced briefly,in which an inner-rotor FSPM machine with 12-stator-slots/10-rotor-poles for high-speed generation and an outer-rotor FSPM machine with 12-stator-slots/22-rotor-poles for low-speed motoring are assembled co-axially.Then,the relationship between the key dimensions and electromagnetic performance,particularly for electromagnetic torque(power),of the CADMP-FSPM machine is studied by 2D-finite element analysis(FEA).Further,the reasonable matches of split ratio,rotor/stator pole arcs and rotor yoke are determined and the original CADMP-FSPM machine is optimized correspondingly.Finally,the static characteristics,including no-load PM flux-linkage,electro-motive-force(EMF),winding inductances,cogging torques and electromagnetic torques,of the original and optimized machines are compared by 2D-FEA.The results verify that the optimized CADMP-FSPM machine can exhibit improved torque characteristics than the original one,i.e.,the torque ripples of the inner and outer machines can be reduced by 22.7%and 4.7%,respectively,and the average torque of the inner and outer machines can be increased by 0.43Nm and 2Nm,respectively.
