Development and Application of Parallel PM Type Hybrid Magnetic Bearing
Development and Application of Parallel PM Type Hybrid Magnetic Bearing
复制标题
平行PM型混合磁力轴承的研制与应用
DOI：
10.1299/kikaic.73.2493
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Y. Okada
中科院分区：
文献类型：
--
作者：
Kouji Sagawa;Eisaku Suzuki;R. Kondo;Y. Okada
混合磁轴承是公认的宽气隙、低损耗、宽气隙的高效磁轴承。以前已经提出了亚极式IPM混合磁轴承。但子极产生偏置磁通，不能产生任何控制力。为了克服这一问题，提出了两种新型的混合磁轴承，它们的定子铁芯内都有永磁体。本文介绍了所提出的磁轴承的结构和工作原理。采用有限元分析方法对新型轴承的几何参数进行了优化。根据这些分析结果，建立了实验装置。测量了基本特性，并与估计的轴承性能进行了比较。结果表明：悬浮稳定，悬浮旋转良好。
Hybrid magnetic bearing is recognized as an efficient one even with wide airgap and suitable for low loss and wide gap application. Previously sub-pole type IPM hybrid magnetic bearing has been proposed. However the sub-pole produces bias flux and cannot produce any control force. To overcome this problem, two new types of hybrid magnetic bearings are proposed which have permanent magnets within their stator cores. This paper introduces structure and principle of the proposed magnetic bearings. The geometric parameters of these new type bearings are optimized using FEM analysis. The experimental setups are made based on these analytical results. The fundamental characteristics are measured and compared with the estimated bearing performances. The results show stable levitation and good levitated rotation.