期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 49, 期 10, 页码 5356-5370出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2013.2263284
关键词
Coupling problem; equivalent magnetic charge method; equivalent magnetic circuit; finite element method; hybrid magnetic radial bearing; passive magnetic bearing
资金
- Aviation Science Fund of China [2012ZB51019]
- National Nature Science Funds of China [61203203]
- National Major Project for the Development and Application of Scientific Instrument Equipment of China [2012YQ040235]
In this paper, the design and development of a novel magnetic bearing (MB) system which consists of a passive magnetic bearing (PMB) with two pairs of passive permanent magnet rings and hybrid magnetic radial bearing (HMRB) used in magnetic bearing flywheel (MBFW) of control moment gyroscope (CMG) for agile satellite application are presented. The models of PMB and HMRB are proposed and their performances of force-current, force-position, and torque-angle are analyzed using the equivalent magnetic circuit method, finite element method (FEM), and equivalent magnetic charge method. The coupling forces between x and y position degrees of freedom (DOFs) of the HMRB, between the coil current in x-axis and y-axis, between the radial and the axial position DOF of the HMRB, and the coupling force and torque between the translating motion along the x (or y) axis and the rotary motion around x (or y) axis. These coupling problems of the novel MB system are proposed and clarified in this paper. An example is given to clarify the mathematical models and the coupling problems, and the linearized model is proposed for controller design of the MB system.
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