On the problem of fault detection and residual generation

Author

Djemai, M. ; Barbot, Jean Pierre ; Bethoux, J. P Barbot

Author_Institution

ECS, ENSEA, Cergy, France

Volume

5

fYear

2000

fDate

2000

Firstpage

4335

Abstract

In this paper, the fundamental problem of residual generation is studied. The solution of this problem is the first step for the solution of the fault detection problem. Here, a class of nonlinear perturbed input-affine system is considered. The technique proposed is based on two steps: the first one consists of decoupling the perturbation with respect to the fault by using the technique of output injection; and the second one consists of fault detection by logic decision. A nonlinear observer with linearizable estimated error dynamics decoupled from the input and the disturbance is used as a residual generator. An illustrative example is presented

Keywords

fault diagnosis; nonlinear systems; observers; perturbation techniques; error dynamics; fault detection; input-affine system; logic decision; nonlinear systems; observer; output injection; perturbation; residual generation; Control systems; Design methodology; Fault detection; Linear systems; Logic; Nonlinear control systems; Nonlinear filters; Nonlinear systems; Safety; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2000. Proceedings of the 39th IEEE Conference on

Conference_Location

Sydney, NSW

ISSN

0191-2216

Print_ISBN

0-7803-6638-7

Type

conf

DOI

10.1109/CDC.2001.914585

Filename

914585