Title :
Reduced-order active disturbance rejection control for multivariable chemical processes
Author :
Qing Zheng ; Daluom, A. ; Weifeng Xu ; Yong Zheng
Author_Institution :
Dept. of Electr. & Comput. Eng., Gannon Univ., Erie, PA, USA
Abstract :
In this paper, a novel reduced-order active disturbance rejection control (RADRC) approach is presented for multivariable chemical process systems. By requiring little information on plant model, RADRC readily decouples multivariable chemical process systems through actively estimating and rejecting the combined effect of the internal plant dynamics and external disturbances. Compared to active disturbance rejection control, RADRC decreases phase lag in the observer by employing a reduced-order extended state observer. The comparative studies on two chemical process problems show excellent performance of RADRC in the presence of significant unknown disturbances and unmodeled dynamics.
Keywords :
chemical engineering; industrial plants; multivariable control systems; observers; reduced order systems; RADRC approach; external disturbances; internal plant dynamics; multivariable chemical process systems; phase lag; plant model; reduced-order active disturbance rejection control approach; reduced-order extended state observer; Chemical processes; Chemical reactors; Control systems; Distillation equipment; MIMO; Observers; Tuning; Reduced-order active disturbance rejection control; chemical processes; decoupling; reduced-order extended state observer;
Conference_Titel :
Industry Applications Society Annual Meeting (IAS), 2012 IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4673-0330-9
Electronic_ISBN :
0197-2618
DOI :
10.1109/IAS.2012.6374014