Title :
Decoupling Double-Loop Control System with ADRC
Author :
Liu, Bo ; Xia, Yuanqing ; Chen, Jie
Author_Institution :
Dept. of Autom. Control, Beijing Inst. of Technol., Beijing
Abstract :
An active disturbance rejection controller (ADRC) is proposed for decoupling double-loop control system. The ADRC consists of the tracking differentiator, the extended state observer and the nonlinear state error feedback. With this approach, the double-loop system with time delay is treated as two correlated control loops according to the best variable pairs selection, the interactions of two control loops can be estimated by the extended state observers, and the nonlinear state error feedback compensates the interactions. Finally, an experiment is designed to show the effectiveness of the proposed scheme.
Keywords :
control system synthesis; delays; feedback; ADRC; active disturbance rejection controller; double-loop control system; extended state observer; nonlinear state error feedback; time delay; tracking differentiator; Automatic control; Control systems; Delay effects; Delay estimation; Nonlinear control systems; Observers; Pi control; Proportional control; State estimation; State feedback;
Conference_Titel :
Innovative Computing Information and Control, 2008. ICICIC '08. 3rd International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-0-7695-3161-8
Electronic_ISBN :
978-0-7695-3161-8
DOI :
10.1109/ICICIC.2008.212
