永磁同步电机的改进指数趋近律控制策略

为了改善使用PI控制算法和指数滑模控制（SMC）算法的永磁同步电机（PMSM）速度控制系统的鲁棒性差和突加负载转矩恢复较慢的问题，设计了一种改进趋近律SMC算法，并将该方法用在PMSM调速系统的速度控制器上。为了验证所提出的改进趋近律SMC算法的可行性，使用MATLAB/Simulink对PMSM双闭环调速系统仿真建模，并对比了传统的指数趋近律SMC算法、PI控制算法。结果表明设计的改进趋近律滑模速度控制器具有较好的鲁棒性和抗负载扰动性。

Improved Exponential Reaching Law Control Strategy of Permanent Magnet Synchronous Motor

Poor robustness and slower torque recovery of sudden load torque occur in permanent magnet synchronous motor (PMSM) speed control system using PI control algorithm and exponential sliding mode control (SMC) algorithm. In order to solve these problems, an improved reaching law SMC algorithm is designed, which is used in the speed controller of the PMSM speed control system. In order to verify the feasibility of the proposed SMC algorithm, MATLAB/Simulink is used to simulate the PMSM double-closed-loop speed control system, and the traditional exponential reaching law SMC algorithm and PI control algorithm are compared. The results show that the improved reaching law sliding mode speed controller has better robustness and resistance to load disturbance.