| Summary: | In order to improve the dynamic response performance of the linear motor, improve the robustness of the motor control system, and make the motor run stably, based on the theory of predictive control, a dynamic matrix controller suitable for speed loop control of linear motor is designed. The PID controller of speed loop in the traditional linear motor control system is replaced by dynamic matrix controller. The simulation models of the permanent magnet synchronous linear motors with PID controller and dynamic matrix speed controller are built. The step signal is applied to the control system, and the simulation under sudden load and sudden load reduction is completed. The response results of the systems with the two controllers are compared. The simulation results show that when the speed loop is controlled by dynamic matrix, the response speed of the motor is faster, the overshoot is smaller, and the motor speed is stable. The improved speed loop controller improves the robustness of the linear motor control system, the dynamic performance of the linear motor, and the anti-disturbance capability of the control system, which facilitates the operation of the motor under great load change conditions.
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