Title :
A two-input two-output fuzzy controller is the sum of two nonlinear PI controllers with variable gains
Author_Institution :
Dept. of Physiol. & Biophys., Texas Univ., Med. Branch, Galveston, TX, USA
Abstract :
The analytical structure of a two-input two-output fuzzy controller is proved to be the sum of two nonlinear proportional-integral (PI) controllers with gains continuously varying with process outputs. The fuzzy controller consists of the following components: (1) two-member input fuzzy sets with linear membership functions; (2) five-member output fuzzy sets with singleton membership functions; (3) 16 fuzzy control rules; (4) probabilistic AND fuzzy logic; and (5) the center-of-gravity defuzzification algorithm
Keywords :
fuzzy control; fuzzy logic; fuzzy set theory; multivariable control systems; nonlinear control systems; probabilistic logic; two-term control; center-of-gravity defuzzification algorithm; five-member output fuzzy sets; fuzzy control rules; fuzzy logic; linear membership functions; nonlinear PI controllers; proportional-integral controllers; singleton membership functions; two-input two-output fuzzy controller; two-member input fuzzy sets; variable gains; Error correction; Fuzzy control; Fuzzy logic; Fuzzy sets; Gain; Gold; Gravity; MIMO; Physiology; Proportional control;
Conference_Titel :
Fuzzy Systems, 1993., Second IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0614-7
DOI :
10.1109/FUZZY.1993.327467
