Research of New Hybrid Axial-Radial Magnetic Bearing Based on Accurate Magnetic Circuit

被引：0
|
作者：
Yu C. [1 ]
Deng Z. [1 ]
Mei L. [2 ]
Pang G. [3 ]
机构：
[1] College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
[2] College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing
[3] Nangjing Inomag Motor Co. Ltd, Nanjing
来源：
Deng, Zhiquan (dzq@nuaa.edu.cn) | 1600年 / China Machine Press卷 / 36期
关键词：
Axial-radial magnetic bearing; Equivalent magnetic circuit; Finite element; Hybrid; Leakage magnetic field;
D O I：
10.19595/j.cnki.1000-6753.tces.200029
中图分类号：
学科分类号：
摘要：
This paper proposes a structure of solid homo-polar axial-radial magnetic bearing, which has the advantages of uniform magnetic field distribution and small axial space. Considering the characteristics of this new hybrid axial-radial magnetic bearing, such as compact structure and complex magnetic field distribution, an accurate magnetic circuit model considering magnetic flux leakage was established combined with the two-dimensional finite element simulation results. According to the magnetic circuit model, the magnetic density in air, stiffness and bearing capacity of the structure were calculated. The simulation results are basically consistent with the calculation results. It is shown that the rotor can achieve stable suspension at high speed, which verifies the feasibility of the structure. © 2021, Electrical Technology Press Co. Ltd. All right reserved.
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页码：1219 / 1228
页数：9
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