Title :
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
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;
Conference_Titel :
Motion Control Proceedings, 1993., Asia-Pacific Workshop on Advances in
Print_ISBN :
0-7803-1223-6
DOI :
10.1109/APWAM.1993.316193
