Novel Heteropolar Radial Hybrid Magnetic Bearing with Low Rotor Core Loss

Publication Type:
Journal Article
IEEE Transactions on Magnetics, 2017, 53 (11)
Issue Date:
Filename Description Size
07915741.pdfPublished Version1.49 MB
Adobe PDF
Full metadata record
© 1965-2012 IEEE. In this paper, one novel heteropolar radial hybrid magnetic bearing (HRHMB) is proposed for flywheel energy storage system. First, its structure and working principle are introduced in detail. Then, its fundamental equations are derived based on magnetic circuit model, such as displacement stiffness, current stiffness, and load capacity. Furthermore, its suspension performance and magnetic coupling are analyzed based on the 2-D finite-element analysis. Finally, the comparison of main performance indexes between the proposed HRHMB and conventional one under the same constraints is made. It indicates that the displacement stiffness can be reduced by the novel structure. In addition, the rotor core loss of the novel HRHMB is just 22.53 W, which is only 41.6% of the conventional eight-pole HRHMB with the same load capacity.
Please use this identifier to cite or link to this item: