Title :
Absolute stability analysis in uncertain static fuzzy control systems with the parametric robust Popov criterion
Author :
Wu, Bing-Fei ; Ma, Li-Shan ; Perng, Jau-Woei ; Chin, Hung-I
Author_Institution :
Dept. of Electr. & Control Eng., Nat. Chian Tung Univ., Hsinchu
Abstract :
This study analyzes the absolute stability in static fuzzy logic control systems with certain and uncertain parameters. For certain static fuzzy control systems, the absolute stability can be analyzed with Popov criterion. The uncertain parameters for absolute stability analysis include the reference input, actuator gain and interval linear plant. The parametric robust Popov criterion based on Lurpsilae systems is applied to stability analysis respect to uncertain parameters. In our work, the parametric robust Popov criterion is applied to analyze absolute stability in static fuzzy logic control systems first time. This study can provide a valuable reference in designing fuzzy control systems. Finally, numerical simulations are provided to verify the analytical results.
Keywords :
Popov criterion; absolute stability; fuzzy control; robust control; uncertain systems; Lure systems; absolute stability analysis; actuator gain; numerical simulations; parametric robust Popov criterion; uncertain parameters; uncertain static fuzzy control systems; Control systems; Fuzzy control; Fuzzy logic; Gain; Hydraulic actuators; Numerical simulation; Robust control; Robust stability; Stability analysis; Stability criteria;
Conference_Titel :
Fuzzy Systems, 2008. FUZZ-IEEE 2008. (IEEE World Congress on Computational Intelligence). IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-1818-3
Electronic_ISBN :
1098-7584
DOI :
10.1109/FUZZY.2008.4630544