Disturbance Attenuation of Feedforward Systems With Dynamic Uncertainty

Author

Chen, Tianshi ; Huang, Jie

Author_Institution

Dept. of Mech. & Autom. Eng., Chinese Univ. of Hong Kong, Hong Kong

Volume

53

Issue

7

fYear

2008

Firstpage

1711

Lastpage

1717

Abstract

This paper studies the disturbance attenuation problem of a class of nonlinear systems in feedforward form that is subject to both dynamic uncertainty and disturbance. When the disturbance vanishes, the equilibrium of the closed-loop system is globally asymptotically stable. Two versions of small gain theorem with restrictions are employed to establish the global attractiveness and local stability of the closed-loop system at the equilibrium respectively.

Keywords

asymptotic stability; closed loop systems; feedforward; nonlinear control systems; uncertain systems; closed-loop system; disturbance attenuation; dynamic uncertainty; feedforward system; global asymptotic stability; local stability; nonlinear system; small gain theorem; Attenuation; Automatic control; Communication system control; Control system analysis; Control systems; Eigenvalues and eigenfunctions; Feedforward systems; Networked control systems; Time varying systems; Uncertainty; Disturbance attenuation; dynamic uncertainty; nonlinear systems; robust stability;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/TAC.2008.929380

Filename

4623252