基于状态观测器的非一致采样系统状态反馈预测控制  

State-Feedback Predictive Controller Based On Estimator for Non-uniformly Sampled System

作　　者：邓红霞[1] 刘晓华[1] 

机构地区：[1]鲁东大学数学与信息学院,山东烟台264025

出　　处：《德州学院学报》2009年第2期63-68,共6页Journal of Dezhou University

摘　　要：针对输入更新不等间隔的非一致采样系统,提出一种基于状态观测器的状态反馈预测控制算法.通过提升控制信号,设计了输入输出同周期的非一致采样系统的状态观测器,并且给出了提升控制信号前后观测器系数矩阵的关系.运用线性矩阵不等式方法,解决无穷时域二次型性能指标下的优化问题,给出了状态反馈预测控制器存在的充分条件.仿真结果证明了控制算法的有效性.This paper proposed a state--feedback predictive control algorithm for the non--uniformly sampled system, in which the control signals are updated in different instants. Control signals are lifted so that control signals and output signals can have same period. A computationally effective non--uniformly sampled system estimated states scheme are presented, Which are calculated only at sampling instants. At each sampling time, the sufficient conditions on the existence of the state feedback control are given and expressed as a set of linear matrix inequalities. Simulation results show the effectiveness of tlhe control algorithms.

关 键 词：非一致采样 状态观测器 状态反馈 提升技术 线性矩阵不等式 预测控制 

分 类 号：O223[理学—运筹学与控制论]