永磁同步电动机中混沌运动的延迟反馈控制

针对永磁同步电动机中存在的混沌运动，分析了采用纳入轨道和强迫迁徙方法进行控制的缺点，该方法要求在永磁同步电动机的速度微分方程中施加一控制，但是永磁同步电动机速度微分方程中没有可以控制的外部变量，因而该方法难以实现。针对这一问题，文中采用延迟反馈方法进行永磁同步电动机混沌运动的控制。该方法以永磁同步电动机的定子交轴电压或直轴电压为控制量，利用电流的延迟反馈实现了混沌运动的控制。该方法只需要一个延时处理，算法简单、易于实现，控制目标可以是周期轨道也可以是系统的不动点。仿真结果表明了该方法的有效性。

DELAY FEEDBACK CONTROL OF CHAOS IN PERMANENT MAGNET SYNCHRONOUS MOTOR

To deal with chaos in Permanent Magnet Synchronous Motor (PMSM), the shortcomings of entrainment and migration control are analyzed. In this method, a manipulated variable is required in the speed differential equation of PMSM. Unfortunately, there is no external variables can be used in the differential equation. Therefore the method is difficult to implement. To solve this problem, delay feedback control is proposed to control chaos in PMSM in this paper. The direct-axis or quadrature-axis stator voltage is used as manipulated variable and direct-axis or quadrature-axis stator current delay feedback is used for chaos control. This method is simple and easy to be realized with a delay processing, the control aim could be not only periodical orbit but also fixed point of the system. Simulation results show the effectiveness of the proposed method.