Title :
Robust adaptive fault-tolerant control applied to interconnected systems
Author :
Challouf, A. ; Tellili, A. ; Abdelkrim, Mohamed Naceur ; Aubrun, Christophe
Author_Institution :
Modelisation, Anal. et Commande des Syst. (MACS), Ecole Nat. d´Ing. de Gabes, Gabes, Tunisia
Abstract :
In this present article a centralized structure of an adaptive method to solve the problem of robust and fault tolerant control (FTC) for large-scale system linear, continuous and time invariant (LTI), against defects sensors and external disturbances is proposed. This class of system contain N-interconnected subsystems. In fact, it operates one architecture for the direct adaptive method. This is a centralized feedback controller. It is assured by some adaptation laws which are proposed to estimate the unknown potential of sensors faults, disturbances and controller parameters Online. Then, a class of centralized controllers return state is constructed to automatically compensate for the effects of faults and external disturbances based on information extracted. An adaptive mechanism from a scheme where active fault tolerant system is exploited. The proposed techniques are finally evaluated in the light of a simulation for an overall interconnected system that can be decomposed into two subsystems coupling.
Keywords :
adaptive control; centralised control; compensation; continuous systems; fault tolerance; feedback; interconnected systems; linear systems; robust control; N-interconnected subsystem; adaptation law; centralized controller return state; centralized feedback controller; compensation; continuous system; direct adaptive method; interconnected system; linear system; robust adaptive fault-tolerant control; time invariant system; Adaptive control; Centralized control; Fault-Tolerant control(FTC); Large-scale system; Robust control; Sensor failure;
Conference_Titel :
Communications, Computing and Control Applications (CCCA), 2011 International Conference on
Conference_Location :
Hammamet
Print_ISBN :
978-1-4244-9795-9
DOI :
10.1109/CCCA.2011.6031217