Title :
Fault-tolerant control of nonlinear system
Author :
Yingwei, Zhang ; Shuying, Wu
Author_Institution :
Key Lab. of Integrated Autom. of Process Ind., Northeastern Univ., Shenyang, China
Abstract :
The design strategies of fault-tolerant control system (FTCS) are developed. In the paper, the online fault-tolerant control (FTC) scheme is developed based on the fuzzy logic system. The closed-loop stability is established based on Lyapunovs sense. The resulting closed-loop system is stable by using the corrective control law. Compared with the existing results, the fault is accommodated by the fault compensator. The updating control law is so derived that all the parameters of the closed-loop system are bounded. The advantage of fault compensation is the dynamics caused by faults that can be accommodated online. Examples of the proposed design indicate that the approaches are effective.
Keywords :
Lyapunov methods; closed loop systems; fault tolerance; fuzzy control; nonlinear control systems; FTCS; Lyapunovs sense; closed-loop stability; closed-loop system; corrective control law; fault compensator; fault tolerant control system; fuzzy logic system; nonlinear system; Control systems; Fault tolerance; Fault tolerant systems; Nonlinear systems; Observers; Robustness; Safety; Fault-tolerant control; fault compensation; nonlinear system;
Conference_Titel :
Control and Decision Conference (CCDC), 2011 Chinese
Conference_Location :
Mianyang
Print_ISBN :
978-1-4244-8737-0
DOI :
10.1109/CCDC.2011.5968395
