Design and Implementation of Joint Control Strategy for Permanent Magnet Synchronous Motor

In order to solve the problems of slow response speed, excessive overshoot and steady state error in the speed control system of permanent magnet synchronous motor, a joint control strategy of permanent magnet synchronous motor based on BP-PID speed controller and STSMC current controller is proposed. Firstly, a BP neural network is used to optimize the PID controller in order to improve the adaptability of the system to speed changes and external disturbances. Meanwhile, the STSMC current controller is introduced to enhance the robustness of the system to current fluctuations and ensure that the motor can operate stably in the rapidly changing operating environment. It is verified through simulation that the joint control strategy is characterized by low response speed, overshooting amount and steady state error.