摘  要：为解决传统PI调节器存在的抗干扰能力弱，鲁棒性差等问题,采用滑模变结构控制方法设计了永磁同步电动机双闭环调速系统中的转速控制器和电流控制器，并对滑模面的形式和其中所涉及参数的取值进行了讨论。最后，通过三组仿真实验，对分别包括PI控制器和滑模变结构控制器的调速系统的性能进行了对比，仿真结果表明，基于滑模变结构理论设计的调速系统具有良好的动静态特性和抗干扰的能力。
关键词：永磁同步电机；滑模变结构控制；转速控制器；电流控制器

Abstract: The PMSM governing system with tradtional PI controller is sensitive to the exterior disturbance and parameter change,so it can’t meet the need of high performance.In this paper,speed controller and current controller based on sliding mode control were proposed for the PMSMs,and the design approach of sliding surface was discussed. At last, the performance of goverming system based on PI controller and SMC controller were compared by three simulation experiments.The simulation results demonstrate that the PMSM drive system with sliding mode controller has good dynamic and static performance and robustness.
Key words: PMSM; silding mode control; speed controller; current controller