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《Sensor World》 2020-04
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Attitude Backstepping Control of Flexible Spacecraft Based on Disturbance Observer

GUO Jun-rui;GUAN Ping;Beijing Information Science and Technology University;  
The attitude maneuver of the flexible spacecraft was studied by using backstepping feedback controller. Firstly, a disturbance observer was constructed to observe the flexible mode, the change of the flexible mode and the equivalent disturbance formed by the external disturbance. Secondly, a nonlinear controller was designed by using backstepping feedback controller to track the virtual angular velocity. Then, the target of attitude maneuver realized. Simulation results showed that the proposed method can quickly realize the attitude maneuver of the flexible spacecraft. The designed disturbance observer can effectively suppress the vibration of the flexible appendage.
【Fund】: 國家自然科學基金項目(No.11732005)
【CateGory Index】: V448.22
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