Fault detection and isolation for a Lipschitz nonlinear system: Application to a bank of tanks

Author

Kamel, M. ; Chadli, M. ; Chaabane, M. ; El Hajjaji, A. ; Chaari, A.

Author_Institution

Ind. Process Control Unit, Nat. Eng. Sch. of Sfax, Sfax, Tunisia

fYear

2009

fDate

24-26 June 2009

Firstpage

377

Lastpage

382

Abstract

This paper addresses the problem of fault detection and isolation (FDI) for a class of Lipschitz nonlinear systems with unknown inputs. We propose two new approaches based on unknown input observer design technique to detect, locate and estimate additional faults. The observer design problem is formulated in Linear Matrix Inequalities (LMI) terms which can be solved easily using LMI technique. An application of quadruple-tank process is presented to show the performance of the proposed approaches.

Keywords

fault diagnosis; linear matrix inequalities; nonlinear control systems; observers; process control; tanks (containers); Lipschitz nonlinear system; bank of tanks; fault detection; fault isolation; linear matrix inequalities; quadruple-tank process; unknown input observer design; Algorithm design and analysis; Automatic control; Automation; Control systems; Fault detection; Fault diagnosis; Hydraulic actuators; Linear matrix inequalities; Nonlinear control systems; Nonlinear systems; FDI; LMI; acuator fault; nonlinear system; observer; unknown inputs;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Automation, 2009. MED '09. 17th Mediterranean Conference on

Conference_Location

Thessaloniki

Print_ISBN

978-1-4244-4684-1

Electronic_ISBN

978-1-4244-4685-8

Type

conf

DOI

10.1109/MED.2009.5164570

Filename

5164570