基于快速动态矩阵控制的抗积分饱和方法

Anti-integral Saturation Method Based on Fast Dynamic Matrix Control

积分饱和在闭环控制系统中是一个不可忽视且非常常见的工业现象,它会导致闭环系统控制品质降低甚至引起闭环不稳定。传统采用二次规划(QP)的QDMC技术往往会消耗大量计算资源和计算时间,并且难以在嵌入式系统中实现。为此,提出一种基于动态矩阵控制算法(DMC)的抗积分饱和方法,该方法模仿QDMC在处理输入积分饱和时的控制逻辑,显著加快了计算速度,而且算法不需要进行二次规划,还可以进行嵌入式设计。模拟研究结果证实了所提算法的有效性。

Integral saturation becomes an indispensable and common industrial phenomenon in closed-loop control systems,potentially degrades control performance and even incurs system instability.Traditional quadratic dynamic matrix control(QDMC)techniques that employ quadratic programming(QP)are computationally intensive and time-consuming.In this paper,the anti-integral saturation method based on dynamic matrix control(DMC)algorithm was described.This method emulates the control logic of QDMC in processing the input integral saturation and it can significantly accelerate computational speed.Importantly,this algorithm eliminates the need for QP and is amenable to embedded system design.Simulation results verify the efficacy of the algorithm proposed.