Title :
Closed-loop system identification and controller tuning for constant-value control systems
Author :
Matsui, Yoshihiro ; Masuda, Shiro ; Ayano, Hideki ; Higuchi, Koji ; Nakano, Kazushi
Author_Institution :
Dept. of Electr. Eng., Tokyo Coll., Tokyo, Japan
Abstract :
A controller design method for constant value control systems has been proposed. The method requires only one-shot experimental data which is obtained from the stabilized closed-loop system when a known zero-mean noise is applied to the output of the plant. The data is used to estimate the plant model by the least square method. The controller is tuned by specifying the stable margin in consideration of the trade-off between the closed-loop bandwidth and the stability margin by a model-based approach in frequency domain. The effectiveness of the method is shown through a numerical example.
Keywords :
closed loop systems; control system synthesis; identification; least squares approximations; nonlinear control systems; stability; closed-loop bandwidth; constant-value control systems; controller design method; controller tuning; frequency domain; least square method; model-based approach; plant model; stability margin; stabilized closed-loop system identification; zero-mean noise; Closed loop systems; Gain; Noise; Sensitivity; Transfer functions; Tuning;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2015 12th International Conference on
Conference_Location :
Hua Hin
DOI :
10.1109/ECTICon.2015.7206983
