DocumentCode :
2259890
Title :
Anti-disturbance PD controller design for flexible spacecraft attitude stabilization
Author :
Eddine, Benmansour Jalal ; Yijiang, Du ; Zhong, Wu
Author_Institution :
School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191
fYear :
2015
fDate :
28-30 July 2015
Firstpage :
5687
Lastpage :
5690
Abstract :
Both vibrations and model uncertainties will pose great challenges for accurate attitude control of flexible spacecrafts. In this paper, an anti-disturbance proportional-derivative (PD) controller is designed to stabilize the attitude while rejecting the effects of flexible vibrations, environmental disturbances, and unmodeled dynamics, which are assumed as an extended state. This controller comprises two parts, i.e. an extended state observer and a PD controller with feedforward. First, flexible vibrations, environmental disturbances, and unmodeled dynamics are regarded as an extended state which can be estimated by the extended state observer. Then, the estimated extended state can be compensated by feedforward and the attitude can be stabilized by the PD controller. Numerical simulation results are presented to demonstrate the effectiveness of the control scheme.
Keywords :
Attitude control; Eigenvalues and eigenfunctions; Feedforward neural networks; Observers; PD control; Space vehicles; Vibrations; Attitude Stabilization; Extended State Observer; Flexible Spacecraft; Proportional-Derivative Control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Conference (CCC), 2015 34th Chinese
Conference_Location :
Hangzhou, China
Type :
conf
DOI :
10.1109/ChiCC.2015.7260527
Filename :
7260527
Link To Document :
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