Title :
Fuzzy servocontrollers: the hierarchical approach
Author :
Tseng, H. Chris ; Hwang, Victor ; Lui, Sung Lep
Author_Institution :
Dept. of Electr. Eng., Santa Clara Univ., CA, USA
Abstract :
On the basis of a study of PI controller functions in servomechanisms, the authors design a two-stage fuzzy servocontroller that accomplishes constant set-point tracking in unknown plants which may be open-loop unstable. A Lyapunov function is used as a performance index in formulating the fuzzy rules. Simulations on an unstable, nonlinear plant justified this approach
Keywords :
Lyapunov methods; control system synthesis; fuzzy control; hierarchical systems; performance index; servomechanisms; two-term control; 2-stage servocontroller; Lyapunov function; PI controller; constant set-point tracking; hierarchical control design; open-loop unstable plants; performance index; two-stage fuzzy servocontroller; Control systems; Fuzzy control; Fuzzy logic; Fuzzy sets; Fuzzy systems; Humans; Industrial control; Lyapunov method; Open loop systems; Performance analysis; Pi control; Proportional control; Servomechanisms;
Conference_Titel :
Fuzzy Systems, 1992., IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0236-2
DOI :
10.1109/FUZZY.1992.258733
