Disturbance rejection in hydraulic automation position control system for rolling mills

Author

Wang Lijun ; Li Qing ; Tong Chaonan ; Yin Yixin ; Gao Zhiqiang ; Zheng Qinling

Author_Institution

Sch. of Autom. & Electr. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China

fYear

2013

Firstpage

5498

Lastpage

5503

Abstract

The hydraulic automation position control (HAPC) system for rolling mills is always difficult to design with high accuracy due to the uncertainties and other external disturbances. Employing a linear, low-order and optimization parameters, the high-order uncertain dynamics and unknown disturbances in plant dynamics is estimated by extended state observer (ESO). The resulting active disturbance rejection control (ADRC) is simple to use, easy to tune. Simulation results show that the proposed ADRC has better robustness and adaptability than PID.

Keywords

hydraulic control equipment; observers; optimisation; position control; rolling mills; uncertain systems; ADRC; ESO; HAPC system; active disturbance rejection control; disturbance rejection; extended state observer; high-order uncertain dynamics; hydraulic automation position control system; optimization parameters; plant dynamics; rolling mills; unknown disturbances; Automation; Damping; Observers; Servomotors; Uncertainty; Valves; Disturbance rejection; Extended state observer; Hydraulic automation position control; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2013 32nd Chinese

Conference_Location

Xi´an

Type

conf

Filename

6640398