Two-level tuning of fuzzy PID controllers

Author

Mann, George K I ; Hu, Bao-Gang ; Gosine, Raymond G.

Author_Institution

Centre for Cold Ocean Resources Eng., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada

Volume

31

Issue

2

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

263

Lastpage

269

Abstract

Fuzzy PID tuning requires two stages of tuning; low level tuning followed by high level tuning. At the higher level, a nonlinear tuning is performed to determine the nonlinear characteristics of the fuzzy output. At the lower level, a linear tuning is performed to determine the linear characteristics of the fuzzy output for achieving overall performance of fuzzy control. First, different fuzzy systems are defined and then simplified for two-point control. Non-linearity tuning diagrams are constructed for fuzzy systems in order to perform high level tuning. The linear tuning parameters are deduced from the conventional PID tuning knowledge. Using the tuning diagrams, high level tuning heuristics are developed. Finally, different applications are demonstrated to show the validity of the proposed tuning method

Keywords

control system synthesis; fuzzy control; three-term control; PID tuning; fuzzy PID controllers; fuzzy control; high level tuning; low level tuning; two-point control; Automatic control; Control systems; Fuzzy control; Fuzzy logic; Fuzzy systems; Gain; Noise measurement; Open loop systems; Three-term control; Two-term control;

fLanguage

English

Journal_Title

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

Publisher

ieee

ISSN

1083-4419

Type

jour

DOI

10.1109/3477.915351

Filename

915351