Variable-structured robust controller by fuzzy logic for servomotors

Author

Suyitno, Amin ; Fujikawa, J. ; Kobayashi, H. ; Dote, Yasuhiko

Author_Institution

Dept. of Comput. Sci. & Syst. Eng., Muroran Inst. of Technol., Japan

Volume

40

Issue

1

fYear

1993

fDate

2/1/1993 12:00:00 AM

Firstpage

80

Lastpage

88

Abstract

A variable-structure robust controller whose structure is continuously changed by fuzzy logic so that the system responds quickly if the error or its rate is large and vice versa is proposed. Such a controller is insensitive to both the plant noise and the observation noise. It is applied to speed control for an induction servomotor. Experiments show that the controller is superior to both a sliding-mode controller and a proportional integral-derivative (PID) controller. The paper includes the stability analysis of the overall system and the design procedure by using Lyapunov´s method

Keywords

fuzzy control; induction motors; machine control; servomotors; stability; variable structure systems; velocity control; Lyapunov´s method; error; fuzzy logic; induction servomotor; speed control; stability analysis; variable-structure robust controller; Control systems; Error correction; Fuzzy logic; Noise robustness; Pi control; Proportional control; Robust control; Servomotors; Sliding mode control; Velocity control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.184824

Filename

184824