电工技术学报  2021, Vol. 36 Issue (6): 1219-1228    DOI: 10.19595/j.cnki.1000-6753.tces.200029
电机及其系统 |
基于精确磁路的新型混合型轴向-径向磁悬浮轴承研究
禹春敏1, 邓智泉1, 梅磊2, 庞古才3
1.南京航空航天大学自动化学院 南京 211106;
2.南京工业大学电气工程与控制科学学院 南京 211816;
3.南京磁之汇电机有限公司 南京 211106
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
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摘要 该文基于一种实心同极性轴向-径向磁悬浮轴承结构,其具有磁场分布均匀、轴向空间较小的优点。针对该新型混合型轴向-径向磁悬浮轴承结构紧凑、磁场分布复杂等特点,结合有限元二维仿真结果,建立考虑漏磁的精确磁路模型。根据磁路模型,计算该结构的气隙磁通密度、刚度和承载力,并与有限元仿真进行对比,仿真与计算结果基本一致。实验结果表明转子能够在较高转速下实现稳定悬浮,验证了该结构的可行性。
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关键词 混合型轴向-径向磁悬浮轴承等效磁路漏磁有限元    
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.
Key wordsHybrid    axial-radial magnetic bearing    equivalent magnetic circuit    leakage magnetic field    finite element   
收稿日期: 2020-01-07     
PACS: TH133.3  
基金资助:国家自然科学基金资助项目(51577087)
通讯作者: 邓智泉 男,1969年生,教授,博士生导师,研究方向为高速电机技术、磁轴承技术、无轴承电机等。E-mail: dzq@nuaa.edu.cn   
作者简介: 禹春敏 男,1991年生,博士研究生,研究方向为混合型磁悬浮轴承。E-mail: ycm@nuaa.edu.cn
引用本文:   
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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