Decoupling Mechanism and Implementation of Torque and Levitation Force in Single-Winding 12/4 Bearingless Switched Reluctance Motor
Cao Xin1, Liu Congyu1, Deng Zhiquan1, Zhao Xusheng2
1. Center for More-Electric-Aircraft Power System Nanjing University of Aeronautics and Astronautics Nanjing 211106 China）; 2. Nanjing Polytechnic Institute Nanjing 210048 China
Abstract：In view of the 12/8 bearingless switched reluctance motors, there exists the strong coupling between the control of torque and levitation forces. By optimizing inductance curve, this paper studies a 12/4 bearingless switched reluctance motor. By constructing the flat region of the motor inductance and providing the torque and levitation forces in different inductance regions, the natural decoupling is achieved between the generation of torque and levitation forces. Considering the two-phase conduction and the feature of the air-gap magnetic circuit, the mathematical models of the torque and levitation forces are established and verified by finite element analysis. Based on the relationship between current, position angle, levitation force, then through the system simulation in Matlab/Simulink and experiments of prototype motor with new hardware platform, the demonstrated performance is confirmed.
曹鑫, 刘从宇, 邓智泉, 赵旭升. 单绕组12/4极无轴承开关磁阻电机转矩和悬浮力的解耦机理与实现[J]. 电工技术学报, 2018, 33(15): 3527-3534.
Cao Xin, Liu Congyu, Deng Zhiquan, Zhao Xusheng. Decoupling Mechanism and Implementation of Torque and Levitation Force in Single-Winding 12/4 Bearingless Switched Reluctance Motor. Transactions of China Electrotechnical Society, 2018, 33(15): 3527-3534.
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2018, Vol. 33 
