关键词: 无轴承异步电机, 支持向量机, &alpha, 阶逆系统, 解耦

Abstract:

Because a bearingless induction motor is of multi-variable,nonlinear and high coupling,a nonlinear dynamic decoupling control approach based on SVM α-th order inverse system method was proposed.The inverse system of the bearingless induction motor was identified by the SVM regression method.By cascading the inverse system with the bearingless induction motor,the nonlinear system was transformed into a pseudo-linear system.Finally,linear control system techniques were applied to these linear subsystems to complete synthesis,simulation and experiment.The study shows that this kind of control strategy can realize dynamic decoupling control among torque and suspension forces of the bearingless induction motor,and that the control system has good dynamic and static performance.

Key words: bearingless induction motor, support vector machine(SVM), &alpha, -th order inverse system, decoupling