Analysis of Electromagnetic Performance of Halbach PM Brushless Machines Having Mixed Grade and Unequal Height of Magnets

被引:51
作者
Shen, Yang [1 ]
Zhu, Z. Q. [1 ]
机构
[1] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S1 3JD, S Yorkshire, England
关键词
Analytical; brushless machine; cost-effective; Halbach magnetization; mixed grade; modular pole; permanent magnet (PM); MOUNTED PERMANENT-MAGNET; NO-LOAD VOLTAGE; SYNCHRONOUS MOTORS; WAVE-FORMS; POLE SHAPE; DESIGN; OPTIMIZATION; TORQUE;
D O I
10.1109/TMAG.2012.2227147
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 proposes a permanentmagnet machine having mixed high-cost NdFeB and low-cost ferrite magnets with modular unequal magnet height poles, i.e., the modular Hat-and T-type magnet poles, together with optimized Halbach magnetization. The investigation shows that the modular T-type magnet poles with mixed magnet grade and unequal side-magnet height exhibit significant potential to achieve low torque ripple, relatively large electromagnetic torque, and high magnet usage efficiency simultaneously.
引用
收藏
页码:1461 / 1469
页数:9
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