首先基于LaSalle不变集定理设计一种自适应控制器,实现了永磁同步电动机中的混沌控制.然后在控制项中增加一个控制强度因子,给出了一种改进的自适应控制器.与以往的控制方案相比,该控制方案具有最简形式,控制器可以施加在状态方程的任何一项上.仿真结果表明了该方法的有效性和对外界随机干扰的鲁棒性. Firstly, an adaptive controller is designed based on LaSalle invariant set theorem to realize the chaos control in PMSM, and then a control strength factor is added to the control term, and an improved adaptive controller is given. Compared with the previous control scheme, the control scheme has the simplest form, and the controller can be applied to any one of the state equations. The simulation results show the effectiveness of the proposed method and its robustness against external random disturbances.