摘要
针对一类网络化控制系统,提出一种输出反馈控制的新方法——观测器/控制器集成设计。该方法借助状态观测器重构系统状态,设计输出反馈控制器,将闭环系统建模为一类混杂系统。利用Lyapunov-Krasovskii泛函方法,以线性矩阵不等式(linear matrix inequality,LMI)形式给出了闭环系统的稳定性判据以及观测器/控制器的集成设计方法。仿真算例说明了所提出的方法简单、有效且易于实现。
A design scheme for output feedback control is presented for a class of networked control systems（NCSs） based on integrated observer/controller.The state observer is introduced to reconstruct system states,and based on it,a output feedback controller is proposed.The close-loop NCS is formulated as a hybrid system.By exploiting a Lyapunov-Krasovskii functional,the stability criterion of the closed-loop system is established.The solutions of integrated observer/controller are accordingly given in terms of linear matrix inequality（LMI） formulation.Finally,a numerical example is provided to demonstrate that the proposed approach is simple,effective and easy to realize.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2011年第2期395-398,410,共5页
Systems Engineering and Electronics
