A State Observer for Networked Control Systems with Long Delays

Author

Sheng, Jie ; Zhang, Yingwei ; Hesketh, Tim

Author_Institution

Sch. of Electr. Eng. & Telecom., New South Wales Univ., Sydney, NSW

fYear

2006

fDate

25-28 June 2006

Firstpage

351

Lastpage

355

Abstract

In this paper, we consider networked control systems where different channel of the control inputs is with different long time delay. For those unstable and/or poorly damped while observable eigenvalues, we propose a reduced-order state observer design approach. Using the reduced-order state observer to reconstruct the full-order state vector of the original system, we proved that the gamma-stability of the state error dynamics can be guaranteed. Meanwhile, the steady-state tracking of the system is achieved

Keywords

delays; distributed control; eigenvalues and eigenfunctions; observers; reduced order systems; state-space methods; full-order state vector; long delays; networked control system; observable eigenvalues; reduced-order state observer; state error dynamics; steady-state tracking; Communication system control; Control systems; Delay effects; Delay systems; Eigenvalues and eigenfunctions; Mechatronics; Networked control systems; Open loop systems; Sampling methods; Stability; long induced time delays; networked control systems (NCS); reduced-order state observer; Â¿-stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Automation, Proceedings of the 2006 IEEE International Conference on

Conference_Location

Luoyang, Henan

Print_ISBN

1-4244-0465-7

Electronic_ISBN

1-4244-0466-5

Type

conf

DOI

10.1109/ICMA.2006.257540

Filename

4026107