基于PCH模型的永磁同步电机转速控制系统

Speed Control System of Permanent Magnet Synchronous Motor Based on PCH Model

为提高永磁同步电机转速控制系统的暂态性能,通过结合互联阻尼配置方法原理,基于端口受控耗散哈密顿系统模型,设计了面贴式永磁同步电机的速度控制器。根据系统在不同阶段的侧重点不同,采用2个控制器切换控制的方法弥补了1个控制器作用时的不足,并设计合理的切换率改变注入阻尼参数,从而改善系统暂态响应。仿真结果表明,对永磁同步电机速度控制系统进行参数切换控制,使得系统保证稳定无超调,且具有良好的转速跟踪性能,改善了系统暂态响应。

In order to improve the transient performance of permanent magnet synchronous motor speed control system,the surface mounted type speed controller of permanent magnet synchronous motor is designed by the combination of interconnection damping assignment method principle and based on the port controlled dissipative Hamiltonian system model.The switching control method with two controllers according to emphasis points in different stage of the system is adopted to cover the shortage of one controller.The reasonable switching ratio is designed to change the damping parameters which improves the transient performance of the system.Simulation results show that the parameter switching control to the permanent magnet synchronous motor speed control system can make the system stability without overshoot,which has good speed tracing performance and improves the transient response of system.