Title :
H∞ robust fault-tolerant control for a class of uncertain nonlinear singular systems with time delay based on T-S fuzzy models
Author :
Zuoyou Yin ; Wenjin Zheng ; Xiaoheng Chang ; Shuxian Lun
Author_Institution :
Sch. of Eng., Bohai Univ., Jinzhou, China
Abstract :
The problems of H∞ robust fault-tolerant control for a class of uncertain nonlinear singular systems with time delays are studied. The T-S fuzzy model with uncertainties and time delays is adopted. For the actuator fault of systems, the state feedback controller is designed. A sufficient conditions for the existence of desired fuzzy state feedback controller are obtained and are independent on time delays. Based on Lyapunov stability theory and LMI method for the system against actuator failure, and the conditions assure the robust stability of the systems, and a prescribed H∞ index for the nonlinear singular system with external disturbances. Simulation results show the effectiveness of the proposed method.
Keywords :
Lyapunov methods; actuators; control system synthesis; delays; fault tolerance; fuzzy control; linear matrix inequalities; nonlinear control systems; robust control; singularly perturbed systems; state feedback; uncertain systems; H∞ index; H∞ robust fault-tolerant control; LMI method; Lyapunov stability theory; T-S fuzzy models; actuator failure; actuator fault; external disturbances; fuzzy state feedback controller design; robust stability; time delay; uncertain nonlinear singular systems; Actuators; Delay effects; Fault tolerance; Fault tolerant systems; Nonlinear systems; Robustness; Fuzzy Controller; Robust Fault-Tolerant; Singular System; Time Delay;
Conference_Titel :
Control and Decision Conference (CCDC), 2013 25th Chinese
Conference_Location :
Guiyang
Print_ISBN :
978-1-4673-5533-9
DOI :
10.1109/CCDC.2013.6561093
