内模解耦控制在PMSM调速中的应用研究

Application and Research of the Internal Model Decoupling Control in the PMSM Speed Control System

在交流永磁同步电动机(PMSM)调速系统中,针对电机的非线性、参数变化性、强耦合,以及常规PID控制不能动态解耦和一些解耦方法中对参数敏感的问题,引入了内模解耦控制方法,该方法通过内模控制实现系统的动态解耦,通过仿真试验表明:该控制方法有效的改善了系统的控制性能,具有良好的控制品质。

In the speed control system of the permanent magnet synchronous motor, the motor always has some unfavorable properties such as nonlinearity , variability of parameters and strong-coupling. The Conventional PID control can not complete coupling dynamically and some methods of deeoupling are sensitive to parameters. The internal model decoupling control was introduced ,and the dynamic dec^upling can be realized through internal model control with this method. The simulation results show that： With this eontrol method , the system control performance was improved and the control quality was more better.