基于逆控制的永磁同步电机速度伺服系统

Speed servo system of permanent magnet synchronous motors based on the inverse method

针对永磁同步电机系统解耦性能,提出一种逆控制的新型控制策略,应用逆系统方法对永磁同步电机进行解耦控制研究.通过对永磁同步电机的数学模型可逆性分析,将永磁同步电机系统解耦成二阶线性转速与一阶线性定子电流两个低阶的线性子系统.仿真结果表明,控制方案具有优良的动态和静态性能,且对负载变化具有较强鲁棒性.

A decoupling control approach based on inverse systems was developed for permanent magnet synchronous motors （PMSM）. A novel inverse control scheme was proposed to decouple the performance of PMSM. On the base of the reversibility analysis of the PMSM＇s mathematical model, the PMSM system is decoupled into a second-order linear speed subsystem and a first-order linear stator current subsystem. Simulation results show that the proposed control scheme possesses excellent control performance and good robustness against load disturbance.