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Adaptive variable structure control based on backstepping for spacecraft with reaction wheels during

本站小编 哈尔滨工业大学/2019-10-23

Adaptive variable structure control based on backstepping for spacecraft with reaction wheels during attitude maneuver

Song Bin, Ma Guang Fu, Li Chuan Jiang

School of Astronautics, Harbin Institute of Technology, Harbin 150001, China



Abstract:

An adaptive variable structure control method based on backstepping is proposed for the attitude maneuver problem of rigid spacecraft with reaction wheel dynamics in the presence of uncertain inertia matrix and external disturbances. The proposed control approach is a combination of the backstepping and the adaptive variable structure control. The cascaded structure of the attitude maneuver control system with reaction wheel dynamics gives the advantage for applying the backstepping method to construct Lyapunov functions. The robust stability to external disturbances and parametric uncertainty is guaranteed by the adaptive variable structure control. To validate the proposed control algorithm, numerical simulations using the proposed approach are performed for the attitude maneuver mission of rigid spacecraft with a configuration consisting of four reaction wheels for actuator and three magnetorquers for momentum unloading. Simulation results verify the effectiveness of the proposed control algorithm.

Key words:  rigid spacecraft  attitude maneuver  backstepping  variable structure control  reaction wheel dynamics

DOI:10.11916/j.issn.1005-9113.2009.01.027

Clc Number:V448.2

Fund:


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