Model Establishment and Parameter Calculation of Permanent Magnet-Biased Hybrid Magnetic Bearing with Magnet in Rotor
更新时间：2019-05-21
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作者联系方式：XU Yanliang(School of Electrical Engineering, Shandong University,Jinan China)XIN Feng(Shandong Institute of Supervision and Inspection on Product Quality, Jinan China)
会议名称：第二届IEEE工业电子与应用国际会议
会议地点：哈尔滨
召开年：2007
摘要：A new kind of permanent magnet-biased hybrid magnetic bearing (MB) with magnet in rotor is developed in order to reduce the bearing's volume and magnetic coupling between X and Y degrees-of-freedom. Its principle structure is introduced and magnetic circuit model is established, on the basis of which, the parameters such as maximum force, force to current ratio, force to displacement ratio and the magnetic coupling are calculated. 3-D FEM is adopted to verify the above analysis. The MB has been used successfully in the suspension of an attitude control/energy storage flywheel with angular momentum of 15Nms at speed of 30,000rpm, satisfying the demand of good stability and low power loss.
