Abstract：To overcome the shortcomings that the suspension forces of rotor were small, the inverter of suspension force windings shut on and off many times and the control systems were complicated by conventional control method of suspension forces in bearingless brushless DC motor (BLDCM), a new control method of suspension force was proposed for BLDCM. Threephase windings of suspension forces were excited simultaneously to generate radial suspension force in the proposed control method. In order to verify the effectiveness of new control method, the suspension force was analyzed and calculated by finite element method (FEM). The control system was simulated by Matlab/Simulink. The results show that the radial suspension force is increased by 35% with the same currents of suspension force windings by the proposed control method. The rotor can be suspended stably, and the whole control system has fine static and dynamic performance.
朱熀秋, 单龙. 无轴承无刷直流电机悬浮力新型控制策略[J]. 江苏大学学报（自然科学版）, 2015, 36(2): 209-214.
ZHU Huang-Qiu, DAN Long. A new control method of suspension force for bearingless
brushless DC motor[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2015, 36(2): 209-214.
2015, Vol. 36 
