Position tracking control for permanent magnet synchronous motor based on integral high-order terminal sliding mode control

摘要

A class of finite-time control strategy is proposed to solve the problem of position tracking of permanent magnet synchronous motor servo system. Which guarantees that the motor's desired position can be tracked in a finite time. Based on the vector control principle, a first-order finite-time controller is firstly designed for the d-axis voltage. And then for the q-axis voltage, an integral high-order terminal sliding mode controller is designed. Theoretical analysis shows that under the proposed controller, the desired position can be tracked by the motor position in a finite time. Simulation results are given to show that the proposed control method has a stronger anti-disturbance ability and a better convergence performance.