Influence of Slot Opening on Optimal Stator and Rotor Pole Combination and Electromagnetic Performance of Switched-Flux PM Brushless AC Machines

被引：113
作者：
Chen, J. T. [1 ]
Zhu, Z. Q. [1 ]
Iwasaki, S. [2 ]
Deodhar, Rajesh P. [2 ]
机构：
[1] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S1 3JD, S Yorkshire, England
[2] IMRA Europe SAS, UK Res Ctr, Brighton BN1 9RS, E Sussex, England
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2011年 / 47卷 / 04期
关键词：
Brushless; combination of slot and pole numbers; low cost; permanent magnet; switched flux;
D O I：
10.1109/TIA.2011.2155011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The significant influence of slot opening on the optimal stator and rotor pole combination and on the electromagnetic performance of the switched-flux permanent magnet (SFPM) machine is observed and investigated in this paper. A new SFPM brushless machine with remarkable slot opening relative to the magnet thickness is developed to reduce the magnet usage and to increase the slot area. Its stator slot opening is almost several times of that in the conventional SFPM machine, but its magnet usage is only half. However, the new machine exhibits similar to 40% larger back EMF and electromagnetic torque than those of the conventional machine, while its cogging torque and torque ripple are significantly lower.
引用
收藏
页码：1681 / 1691
页数：11
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