Simulation Research of Permanent Magnet Synchronous Motor Speed Control System Based on Vector Control
摘要
The traditional PI control method regulates the speed and current of permanent magnet synchronous motors (PMSM), though it has a simple structure and good steady-state performance, there is coupling between the d-q axes during dynamic processes, which affects both the dynamic and static performance of current control. To address this drawback, a dual-loop vector control strategy is proposed. This strategy consists of a speed outer loop and a current inner loop, incorporating a speed regulator and a current regulator to reduce current error and improve system response speed. The article introduces the modeling of permanent magnet synchronous motors and methods for speed control, and performs simulation analysis of the speed loop based on the MATLAB platform. The results show that the proposed control strategy is feasible and effective, contributing to beneficial exploration in the research of control methods for permanent magnet synchronous motors.