永磁同步电动机速度控制方案

Speed Control Scheme for Permanent Magnet Synchronous Motors

涉及面装永磁同步电动机(PM SM)的速度控制,旨在开发控制方案使电机快速地跟踪指令速度。关键是让电流误差子系统成为一个具有好的收敛速率的齐次(不受力)系统,以使定子电流快速跟踪由速度调节器给出的指令电流。所给方案结构与算法简单。仿真实验结果显示,该系统在突加减负荷的情况下能够成功地跟踪指令速度信号。

This paper deals with speed control of surface-mounted permanent magnet synchronous motors. Its purpose is to develop a control scheme that forces motor to quickly track reference speed. The key point with this scheme is letting current error subsystem become an unforced linear system with a good convergence rata, in this case the stator current quickly track the reference current given by a speed PI regulator. This leads to simple control structure and algorithm. Simulation and experimental results show that the proposed scheme can successfully track speed reference signals in suddenly increasing/decreasing load cases.