Title :
A novel fault reconstruction approach to satellite attitude control system via learning unknown input observer and H∞ techniques
Author :
Qing-Xian Jia ; Ying-chun Zhang ; Wen Chen ; Yi Shen
Author_Institution :
Res. Center of Satellite Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
A novel robust fault reconstruction approach is proposed for satellite attitude control systems (ACS) by proposing a learning unknown input observer (LUIO). Stability of LUIO and ultimately boundedness of dynamic fault deviation are proved using Lyapunov stability analysis. LUIO design problem can be solved effectively using MATLAB LMI toolbox. Finally, mathematical simulation on satellite closed-loop ACS demonstrates the effectiveness of the proposed approach.
Keywords :
H∞ control; Lyapunov methods; artificial satellites; attitude control; closed loop systems; control system synthesis; fault diagnosis; linear matrix inequalities; observers; stability; H∞ techniques; LUIO design problem; LUIO stability; Lyapunov stability analysis; MATLAB LMI toolbox; dynamic fault deviation; learning unknown input observer; mathematical simulation; robust fault reconstruction approach; satellite attitude control system; satellite closed-loop ACS; ultimately boundedness; Actuators; Attitude control; Fault detection; Observers; Robustness; Satellites; Torque;
Conference_Titel :
American Control Conference (ACC), 2012
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4577-1095-7
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2012.6315233
