axial magnetic force;
brushless dc motor (BLDCM);
overhang effect;
permanent magnet (PM);
three-dimensional equivalent magnetic circuit network (EMCN) method;
D O I:
10.1109/TMAG.2003.810179
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
This paper investigates the permanent magnet overhang effect in brushless de motor., The characteristics are analyzed according to the variation of symmetric overhang length and asymmetric overhang ratio. A three-dimensional equivalent magnetic circuit network (EMCN) method is used for the accurate and efficient analysis. From the results, it is quantitatively verified that the increase of overhang length enhances the linkage fluxes of the stator and the asymmetric overhang ratio has a large effect, on the axial magnetic force.