A Fully-actuated System Approach for Spacecraft Attitude Control with Input Saturation

This paper investigates the attitude control problem for a rigid spacecraft subject to external disturbances and actuator saturation. A novel control scheme is technically proposed by incorporating the Nussbaum gain technique and extended state observer into the fully-actuated system theory. First,...

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Bibliographic Details
Published in2023 2nd Conference on Fully Actuated System Theory and Applications (CFASTA) pp. 705 - 710
Main Authors Feng, Zhenyu, Liu, Ming, Cao, Xibin
Format Conference Proceeding
LanguageEnglish
Published IEEE 14.07.2023
Subjects
Adaptive control
Attitude control
Fully-actuated system
Input saturation
Nonlinear dynamical systems
Numerical simulation
Nussbaum-type function
Observers
Space vehicles
Stability analysis
Uncertainty
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Summary:This paper investigates the attitude control problem for a rigid spacecraft subject to external disturbances and actuator saturation. A novel control scheme is technically proposed by incorporating the Nussbaum gain technique and extended state observer into the fully-actuated system theory. First, a fully-actuated system model for the attitude error dynamics is established. Then, the Nussbaum gain technique is employed to tackle the time-varying input gains arising from input saturation, and an extended state observer is introduced to estimate and compensate system uncertainties and external disturbances. The stability of the closed-loop system and the convergence of state errors are accordingly proven via Lyapunov stability approaches. Finally, a numerical simulation is carried out to validate the effectiveness of the proposed scheme.
DOI:10.1109/CFASTA57821.2023.10243370