Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (2): 395-398.doi: 10.3969/j.issn.1001-506X.2011.02.33

• 制导、导航与控制 • 上一篇    下一篇

网络化控制系统观测器/控制器集成设计方法

马力伟, 田作华, 施颂椒   

  1. 上海交通大学自动化系, 上海 200240
  • 出版日期:2011-02-28 发布日期:2010-01-03

Approach to design integrated observer/controller for networked control systems

MA Li-wei, TIAN Zuo-hua, SHI Song-jiao   

  1. Department of Automation, Shanghai Jiaotong University, Shanghai 200240, China
  • Online:2011-02-28 Published:2010-01-03

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。

Abstract:

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.

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