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		Kemao MA,Jiawei ZHANG,Yafei YANG.[en_title][J].Control Theory and Technology,2013,11(3):483~488.[Copy]

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KemaoMA,JiaweiZHANG,YafeiYANG
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(Control and Simulation Center, Harbin Institute of Technology)

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Received:July 06, 2012Revised:October 11, 2012

基金项目:This work was supported by the National Natural Science Foundation of China (Nos. 61174001, 61203185).

Improved backstepping control for large angle maneuvers of spacecraft

Kemao MA,Jiawei ZHANG,Yafei YANG

(Control and Simulation Center, Harbin Institute of Technology)

Abstract:

For the control of large angle maneuvers of a spacecraft, variable gain backstepping control is proposed. The controller can make the states of the system converge to the commanded position along the input vector field orientation. The controller stabilizes the system with the amplitude of the commanded torques decreased. Considering the uncertainty of the disturbance torques and the estimation error of the inertia matrix, the control design is improved to provide strong self-adaptability and robustness of the system. Simulation is conducted, and the results show that the design has good tracking performance and convergence, consistent with the theoretical analysis.

Key words: Large angle maneuvers Backstepping control Self-adaptive Robustness Torque amplitude