Variable-structured robust control by fuzzy logic and stability analysis for AC drive system

Author

Suyitno, Amin ; Strefezza, Miguel ; Dote, Yasuhiko

Author_Institution

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

fYear

1993

fDate

15-16 Jul 1993

Firstpage

51

Lastpage

56

Abstract

This paper presents a variable-structured robust controller whose structure is continuously changed by fuzzy logic such that the controller makes the system respond quickly if the error e is large and vice versa. The controller is robust due to insensitivity to both the plant noise and the observation noise. Then, it is practically applied to speed control for an induction servomotor. It shows that the proposed controller is superior to both a sliding mode controller and a PID controller. The paper includes the stability analysis of the overall system and the design procedure by using Liapunov´s method

Keywords

electric drives; fuzzy logic; induction motors; machine control; servomotors; stability; variable structure systems; velocity control; AC drive system; Liapunov´s method; PID controller; design procedure; fuzzy logic; induction servomotor; sliding mode controller; speed control; stability analysis; variable-structured robust controller; Control systems; Error correction; Fuzzy logic; Noise robustness; Robust control; Robust stability; Servomotors; Sliding mode control; Three-term control; Velocity control;

fLanguage

English

Publisher

ieee

Conference_Titel

Motion Control Proceedings, 1993., Asia-Pacific Workshop on Advances in

Print_ISBN

0-7803-1223-6

Type

conf

DOI

10.1109/APWAM.1993.316193

Filename

316193