融合闭环反馈机理的多变量预测控制策略

Multivariable Predictive Control Strategy Based on Integration of Closed-loop Feedback

针对在模型预测控制中模型失配较严重时,单独使用动态矩阵控制不能满足控制需要的问题,提出了融合闭环反馈机理的多变量预测控制策略。讨论了多输入多输出系统中输入和输出的配对问题,以及控制算法中的PID控制强度问题,在动态矩阵控制的基础上引入PID反馈,利用动态矩阵控制算法的鲁棒性强及PID控制算法抗干扰性能好的优点,极大地弥补了模型失配的影响。通过对一个经典两输入两输出控制问题的仿真,表明该控制策略具有明显优于单独的DMC控制的性能。

To the problem of the unsatisfactory control requirement when the dynamic matrix control(DMC) is merely used in the case of the serious model mismatch in model predictive control,a multivariable predictive control strategy based on integration of closed - loop feedback is proposed.The matching problem of the input and output is discussed for multi-input multi-output systems.The PID control strength in the control algorithm is analyzed.The PID feedback is incorporated based on the DMC.Using the strong robust...