Design of fuzzy controllers based on frequency and transient characteristics

Author

Tanaka, Kazuo ; Sano, Manabu

Author_Institution

Dept. of Mech. Syst. Eng., Kanazawa Univ., Japan

fYear

1993

fDate

1993

Firstpage

111

Abstract

The authors propose design methods for fuzzy phase-lead compensators based on frequency and transient characteristics in fuzzy control systems. The main feature of these fuzzy phase-lead compensators is that they have parameters for effectively compensating phase characteristics in control systems. Two theorems based on the concept of frequency and transient characteristics are derived. One is a theorem for judging whether a fuzzy phase-lead compensator should be used or not. The other is a theorem for realizing phase-lead compensation. A method for designing a fuzzy phase-lead compensator for linear controlled objects is constructed using these theorems. The method is extended to unknown or nonlinear controlled objects. Simulation results show the validity of these design methods

Keywords

compensation; control system synthesis; fuzzy control; linear systems; nonlinear control systems; frequency characteristics; fuzzy controllers; fuzzy phase-lead compensators; linear controlled objects; nonlinear controlled objects; transient characteristics; unknown objects; Control systems; Damping; Design methodology; Frequency; Fuzzy control; Fuzzy systems; Mechanical systems; Open loop systems; Transfer functions; Transient response;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems, 1993., Second IEEE International Conference on

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-0614-7

Type

conf

DOI

10.1109/FUZZY.1993.327454

Filename

327454