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Published on: November 11, 2013
Design and analysis of a centripetal force type-magnetic bearing for a flywheel battery system
Weiyu Zhang1, Jianping Wang1, Pengfei Zhu1
1School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China.
Abstract:
In this study, a novel centripetal force type-magnetic bearing (CFT-MB) for a flywheel battery system is proposed. First, the configuration, magnetic circuits, and working principles of the CFT-MB are analyzed in detail. Then, a backward step-by-step method based on magnetic field division is adopted for the parameter design. In addition, the proposed CFT-MB prototype is simulated and manufactured based on the design results. The simulation result verifies the accuracy of parameter design results and the superiority performance of the CFT-MB. Finally, the experiments and tests of the stiffness and gyroscopic effects are conducted. The experimental results show that the presented CFT-MB has superior performance than the traditional cylindrical magnetic bearing, and the gyroscopic effect can be obviously suppressed by adopting the CFT-MB.
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