Rotor Eddy Current Loss Analytical Model for High-speed Permanent Magnet Motor With Sleeve Based on Loaded Magnetic Field Analysis Considering Eddy Current Reaction Effect

被引：0
|
作者：
Tong W. [1 ]
Hou M. [1 ]
Lu J. [1 ]
Wu S. [1 ]
Jia J. [1 ]
机构：
[1] National Engineering Research Center for Rare-earth Permanent Magnet Machines (Shenyang University of Technology), Liaoning Province, Shenyang
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2022年 / 42卷 / 24期
关键词：
eddy current reaction; high-speed permanent magnet motor; loss separation experiment; rotor eddy current loss;
D O I：
10.13334/j.0258-8013.pcsee.211837
中图分类号：
学科分类号：
摘要：
Based on the precise subdomain method, a rotor eddy current loss analytical model of a high-speed permanent magnet synchronous motor with sleeve under the combined action of armature magnetic field, permanent magnetic field and stator slotting was established. The model also considered the influence of the rotor eddy current reaction caused by the high frequency harmonic magnetic field. This model considered both the stator current and permanent magnet remanence in the slot subdomain and the permanent magnet subdomain. Therefore, the analytical model can be used to calculate the rotor eddy current loss in the presence of armature magnetic field, ideal no-load magnetic field, and load magnetic field. In order to improve the calculation accuracy of the analytical model, the diffusion equation was also solved in the rotor conductor region, considering the influence of the eddy current reaction. According to this analysis model, the influence of slot opening width, sleeve material and sleeve thickness on rotor eddy current loss was studied. Finally, a loss separation experiment was carried out on a 7.5 kW, 15000 r/min high-speed permanent magnet motor, and the rotor eddy current loss obtained by analysis, finite element and experiment was compared, and the validity of the analysis model was verified. © 2022 Chinese Society for Electrical Engineering. All rights reserved.
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页码：9072 / 9083
页数：11
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