Research of New Hybrid Axial-Radial Magnetic Bearing Based on Accurate Magnetic Circuit
Yu Chunmin1, Deng Zhiquan1, Mei Lei2, Pang Gucai3
1. College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing 211106 China; 2. College of Electrical Engineering and Control Science Nanjing Tech University Nanjing 211816 China; 3. Nangjing Inomag Motor Co. Ltd Nanjing 211106 China
Abstract：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.
禹春敏, 邓智泉, 梅磊, 庞古才. 基于精确磁路的新型混合型轴向-径向磁悬浮轴承研究[J]. 电工技术学报, 2021, 36(6): 1219-1228.
Yu Chunmin, Deng Zhiquan, Mei Lei, Pang Gucai. Research of New Hybrid Axial-Radial Magnetic Bearing Based on Accurate Magnetic Circuit. Transactions of China Electrotechnical Society, 2021, 36(6): 1219-1228.
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2021, Vol. 36 
