Title :
H∞ observer for time-delay systems Application to FDI for irrigation canals
Author :
Bedjaoui, N. ; Litrico, X. ; Koenig, D. ; Malaterre, P.O.
Author_Institution :
Cemagref, Montpellier
Abstract :
This paper deals with the problem of fault detection and isolation for time-varying delayed systems. It consists to develop a H∞ observer that generates residuals sensitive to some faults and insensitive to others in order to detect and isolate actuator faults which can occur on the regulation gates of an irrigation canal. The observer design uses a simplified approximate model of the Saint-Venant equations and is formulated with delay-dependent linear matrix inequality (LMI). Simulations done with a realistic model of a real canal show the effectiveness of the method
Keywords :
H∞ control; delay systems; fault diagnosis; flow control; irrigation; linear matrix inequalities; observers; time-varying systems; H∞ observer; Saint-Venant equation; actuator fault isolation; delay-dependent linear matrix inequality; fault detection; irrigation canals; regulation gates; time-delay systems; time-varying delayed systems; Actuators; Computational modeling; Context modeling; Control systems; Delay systems; Equations; Fault detection; Irrigation; Linear matrix inequalities; Time varying systems;
Conference_Titel :
Decision and Control, 2006 45th IEEE Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0171-2
DOI :
10.1109/CDC.2006.377709
