Volume 32 Issue 11
Nov.  2006
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Fang Jiancheng, Sun Jinji. New permanent magnet biased radial magnetic bearing in magnetic suspending flywheel application[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(11): 1304-1307. (in Chinese)
Citation: Fang Jiancheng, Sun Jinji. New permanent magnet biased radial magnetic bearing in magnetic suspending flywheel application[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(11): 1304-1307. (in Chinese)

New permanent magnet biased radial magnetic bearing in magnetic suspending flywheel application

  • Received Date: 30 Apr 2006
  • Publish Date: 30 Nov 2006
  • To overcome the defects of the present permanent magnet biased radial hybrid magnetic bearing, a new permanent magnet biased radial hybrid magnetic bearing in magnetic suspending flywheel application is reported. The fundamental principle of the radial magnetic bearing is presented. And the radial magnetic bearing are analyzed and calculated by using the equivalent magnet circuit and finite element method (FEM). As a matter of fact, the flux of permanent magnet and electromagnetic occur in any radial plane, so the axial length of the radial magnetic bearing will be less. Therefore, the presented radial magnetic bearing has smaller volume compared to the existing structure. In addition, there is no coupling between X and Y direction so that the control is easier. It is more applied to the high speed or low loss occasions.

     

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