Sleeve design of permanent-magnet machine for low rotor losses

被引：24
|
作者：
Zheng J. [1 ]
Zhao W. [1 ]
Ji J. [1 ]
Zhu J. [2 ]
Lee C.H.T. [3 ]
机构：
[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang
[2] Department of Computer Science and Technology, Tsinghua University, Beijing
[3] School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
来源：
Chinese Journal of Electrical Engineering | 2020年 / 6卷 / 04期
基金：
中国国家自然科学基金;
关键词：
concentrated-windings; eddy-current; Permanent-magnet machine; rotor losses; sleeve;
D O I：
10.23919/CJEE.2020.000033
中图分类号：
学科分类号：
摘要：
In this study, a novel rotor sleeve for permanent-magnet (PM) machines equipped with fractional-slot concentrated-windings (FSCW) is proposed. With the newly designed rotor sleeve, the rotor eddy-current (EC) losses are significantly reduced, and the torque density of the machine is improved. First, the rotor EC losses of a surface-mounted PM machine with the sleeve are analyzed. Meanwhile, the sleeve EC barriers and PM segmentation technologies for the suppression of the rotor EC losses are evaluated. Subsequently, an FSCW PM machine with the newly designed sleeve is proposed and optimized for a given set of specifications. Its electromagnetic and mechanical performances are evaluated by the finite element method (FEM). Finally, three assembling methods are presented and assessed comprehensively in terms of their merits and drawbacks. © 2017 CMP.
引用
收藏
页码：86 / 96
页数：10
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