Title :
A fault-tolerant control strategy for Lipschitz non-linear discrete-time systems
Author :
Witczak, Marcin ; Korbicz, Józef
Author_Institution :
Inst. of Control & Comput. Eng., Univ. of Zielona Gora, Zielona, Poland
Abstract :
In this paper, an active FTC strategy is proposed. First, it is developed in the context of linear systems and then it is extended to Lipschitz non-linear systems. The key contribution of the proposed approach is an integrated FTC design procedure of the fault identification and fault-tolerant control schemes. Fault identification is based on the use of an observer. While, the FTC controller is implemented as a state feedback controller. This controller is designed such that it can stabilize the faulty plant using Lyapunov theory and LMIs. Finally, the last part of the paper shows experimental results that confirm the high performance of the proposed approach.
Keywords :
Lyapunov matrix equations; control system synthesis; discrete time systems; fault diagnosis; fault tolerance; linear matrix inequalities; linear systems; nonlinear control systems; observers; state feedback; FTC controller; FTC design procedure; FTC strategy; LMI; Lipschitz nonlinear discrete-time systems; Lyapunov theory; fault identification; fault-tolerant control strategy; faulty plant; linear systems; observer; stabilization; state feedback controller; Actuators; Fault tolerance; Fault tolerant systems; Linear systems; Observers; State feedback;
Conference_Titel :
Control & Automation (MED), 2010 18th Mediterranean Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-8091-3
DOI :
10.1109/MED.2010.5547650