感应型磁悬浮电动机的解耦控制

对双定子绕组感应型磁悬浮电动机进行了研究。针对系统具有多变量、强耦合、非线性的特点 ,应用多变量非线性控制的逆系统理论 ,通过状态反馈线性化方法 ,设计出非线性控制器 ,经过该非线性控制器的补偿 ,将原非线性强耦合的多变量系统解耦并线性化 ,成为转速、转子磁链及转子位置等彼此无耦合的线性子系统。最后 ,应用线性系统理论对这些线性子系统进行综合。计算机仿真表明 ,系统具有良好的静、动态性能。

Decoupling Control for Induction-Type Bearingless Motor

A decoupling control approach has been developed for a nonlinear system of an induction type bearingless motor in which lateral forces can be generated in addition to the torque A nonlinear controller based on dynamic feedback linearization is designed such that the nonlinear system with strongly coupled motion is reduced to four decoupled normalization linear subsystems including two rotor displacements and its speed as well as rotor flux Furthermore,the linear system theory is utilized to improve the transient performance of these normalization linear subsystems To verify the effectiveness of the control scheme,some simulations have been employed,and the results are satisfactory