基于广义预测控制的无刷直流电机控制研究

Study on brushless DC motor control based on generalized predictive control

提出基于广义预测控制(generalized predictive control,GPC)的无刷直流电机控制方法,采用双闭环结构的无刷直流电机控制系统,其中外环为GPC转速控制器,它以电机、逆变器等结构为被控对象,将给定转速、实时转速、实时电流作为输入,输出电流值作为内环控制器的输入;内环采用电流滞环控制,其输出作为逆变器的输入。使用Matlab搭建仿真模块并运行后,证明该方法模型要求低、抗干扰性强、控制效果良好。

Generalized predictive control（GPC）for BLDCM is introduced in this paper.Double closed loops structure of BLDCM control system is adopted.Outer ring is GPC speed controller.Motor and inverter are control objects.Given speed,real-time speed,real-time current are inputs.And output of current value is the input of inner ring.Inner ring controller used current hysteresis control whose output is the input of inverter module.The Matlab simulation verifies GPC presents low requirements for model,strong anti-interference and good control effect.