A new approach to adaptive fuzzy control: the controller output error method

Author

Andersen, H.C. ; Lotfi, A. ; Tsoi, A.C.

Author_Institution

Dept. of Electr. & Comput. Eng., Queensland Univ., Brisbane, Qld., Australia

Volume

27

Issue

4

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

686

Lastpage

691

Abstract

The controller output error method (COEM) is introduced and applied to the design of adaptive fuzzy control systems. The method employs a gradient descent algorithm to minimize a cost function which is based on the error at the controller output. This contrasts with more conventional methods which use the error at the plant output. The cost function is minimized by adapting some or all of the parameters of the fuzzy controller. The proposed adaptive fuzzy controller is applied to the adaptive control of a nonlinear plant and is shown to be capable of providing good overall system performance

Keywords

adaptive control; controllers; fuzzy control; adaptive control; adaptive fuzzy control; controller output error method; cost function minimisation; gradient descent algorithm; nonlinear plant; system performance; Adaptive control; Adaptive systems; Control systems; Cost function; Error correction; Fuzzy control; Fuzzy systems; Nonlinear control systems; Programmable control; System performance;

fLanguage

English

Journal_Title

Systems, Man, and Cybernetics, Part B: Cybernetics, IEEE Transactions on

Publisher

ieee

ISSN

1083-4419

Type

jour

DOI

10.1109/3477.604113

Filename

604113