On the design of stable fuzzy controller based on adaptive approach

Author

Lam, H.K. ; Leung, Frank H. F. ; Tam, P.K.S.

Author_Institution

Dept. of Electron. Eng., Hong Kong Polytech., Hung Hom, Hong Kong

fYear

1996

fDate

2-6 Dec 1996

Firstpage

541

Lastpage

544

Abstract

This paper presents the design of adaptive fuzzy controller for an n-th order plant. The plant is first divided into two parts, the known part and the unknown part. During the control process, the unknown part of the optimal control signal will be approximated by an adaptive fuzzy controller. The adaptive fuzzy controller is described by the IF-THEN rules. The consequent part of each rule is changed according to the adaptive law. Based on a Lyapunov function, the adaptive law is derived under which the stability of the system is guaranteed. Finally, an example will be given to show the merits of the proposed design approach

Keywords

Lyapunov methods; adaptive control; control system synthesis; fuzzy control; optimal control; stability criteria; uncertain systems; IF-THEN rules; Lyapunov function; adaptive fuzzy controller; optimal control; stable fuzzy controller design; unknown part; Adaptive control; Control systems; Fuzzy control; Fuzzy logic; Fuzzy systems; Lyapunov method; Optimal control; Programmable control; Signal processing; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 1996. (ICIT '96), Proceedings of The IEEE International Conference on

Conference_Location

Shanghai

Print_ISBN

0-7803-3104-4

Type

conf

DOI

10.1109/ICIT.1996.601648

Filename

601648