Title :
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
fDate :
2/1/1993 12:00:00 AM
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;
Journal_Title :
Industrial Electronics, IEEE Transactions on
