Design of fault-tolerant controller for uncertain continuous-time system

Author

Zhang Huachu ; Min, Tan

Author_Institution

Inst. of Autom., Acad. Sinica, Beijing, China

Volume

1

fYear

2000

fDate

6/22/1905 12:00:00 AM

Firstpage

724

Abstract

Based on Lyapunov stability theorem and the generalised inverse theory, we present a design procedure for synthesizing a state-feedback system possessing good characteristics due to both the placements of the closed-loop poles in a specified region and the integrity against actuator failures in this paper. Design method for state feedback controller such that all poles of the nominal closed-loop systems are placed within a prescribed circular region is addressed. The region that we consider for pole placement is a specified circular region. Then, the design of robust controller for the system subjected to plant parameter perturbation and actuator failure has been studied. Sufficient condition for the existence of the desired controller is derived. Furthermore, the result is developed for the case of sensor failure. It is shown that the proposed system design retains asymptotic stability in the presence of parameter perturbation, as well as in the case of actuator failure

Keywords

Lyapunov methods; asymptotic stability; closed loop systems; control system synthesis; fault tolerance; pole assignment; robust control; state feedback; uncertain systems; Lyapunov stability theorem; actuator failure; asymptotic stability; closed-loop poles; fault-tolerant controller design; generalised inverse theory; plant parameter perturbation; pole placement; robust controller; sensor failure; state feedback controller; state-feedback system synthesis; uncertain continuous-time system; Actuators; Asymptotic stability; Control system synthesis; Control systems; Design methodology; Fault tolerance; Lyapunov method; Robust control; State feedback; Sufficient conditions;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on

Print_ISBN

0-7803-5995-X

Type

conf

DOI

10.1109/WCICA.2000.860071

Filename

860071