Analysis of a Consequent-Pole Spoke-Array Vernier Permanent Magnet Machine

被引：0
|
作者：
Liang Z. [1 ]
Qu R. [1 ]
Li D. [1 ]
Ren X. [1 ]
Gao Y. [1 ]
机构：
[1] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2020年 / 35卷 / 15期
关键词：
Consequent-pole; Flux barrier effect; Flux bridges; Spoke-array vernier permanent magnet (SA-VPM) machine;
D O I：
10.19595/j.cnki.1000-6753.tces.191106
中图分类号：
学科分类号：
摘要：
In this paper, a novel spoke-array vernier permanent magnet (SA-VPM) machine with consequent-pole magnets and flux bridges is proposed to improve the torque density of the SA-VPM machine with high pole ratio (ratio of rotor pole pair number to winding pole pair number). In the proposed SA-VPM machine, the magnets with circumferential magnetization have the same polarity and the flux bridges are attached to the side-faces of rotor permanent magnets (PMs), which can weaken the flux barrier effect and strengthen the flux modulation effect, thus improving the air-gap flux density, back-EMF and torque density. Moreover, the proposed SA-VPM machine can save the usage of PMs due to the consequent-pole structure. The flux barrier effect, configuration and operational principles of the proposed SA-VPM machine are introduced. Then, the influences of several main parameters on torque performance are researched. Finally, the electromagnetic performances of the conventional and proposed SA-VPM machines are compared by finite element analysis (FEA). The results prove that the proposed machine has higher torque density and lower PM usage. © 2020, Electrical Technology Press Co. Ltd. All right reserved.
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页码：3173 / 3181
页数：8
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