Title :
Relaxed stability conditions for discrete-time fuzzy-model-based control systems
Author :
Wong, Ginny Y. ; Leung, Frank H. ; Lam, Hak-Keung
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Hong Kong, China
Abstract :
This paper presents the stability conditions for discrete-time fuzzy-model-based control systems subject to parameter uncertainties. The nonlinear plant subject to parameter uncertainties is represented by a Takagi-Sugeno fuzzy model with uncertain grades of memberships. Relaxed stability conditions for this class of fuzzy control systems will be derived to guarantee the system stability. A numerical example will be presented to show the effectiveness of the proposed approach.
Keywords :
discrete time systems; fuzzy control; fuzzy set theory; nonlinear control systems; stability; uncertain systems; Takagi-Sugeno fuzzy model; discrete-time fuzzy-model-based control system; membership function; nonlinear plant; parameter uncertainty; relaxed stability condition; Control system synthesis; Control systems; Fuzzy control; Fuzzy systems; Lyapunov method; Nonlinear control systems; Nonlinear systems; Robust control; Stability analysis; Uncertain systems;
Conference_Titel :
Fuzzy Systems, 2009. FUZZ-IEEE 2009. IEEE International Conference on
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4244-3596-8
Electronic_ISBN :
1098-7584
DOI :
10.1109/FUZZY.2009.5277073
