Attitude stabilization of flexible spacecraft under limited communication with reinforced robustness. (December 2019)

• Record Type: Journal Article
• Authors: Amrr, Syed Muhammad; Nabi, M
• Is Part Of: Transactions of the Institute of Measurement and Control. Volume 41:Number 16(2019)
• Page Start: 4475
• Page End: 4487
• Publication Date: 2019-12
• Subjects: Spacecraft attitude control -- limited communication -- event-triggered -- robust control -- anti-unwinding; Automatic control -- Periodicals; Measuring instruments -- Periodicals; Commande automatique -- Périodiques; Mesure -- Instruments -- Périodiques; 681.2
• DOI: 10.1177/0142331219860651
• Languages: English
• ISSNs: 0142-3312

Abstract

This paper proposes a robust event-driven control for attitude regulation in flexible spacecraft affected by inertial parametric uncertainties and external disturbances. The bandwidth constraint of the communication channel between controller and system requires an event-based control design. Under the action of proposed control law, the system trajectories are ensured to be uniformly ultimately bounded (UUB) in a small vicinity of their equilibrium points. Apart from the boundedness of states, the proposed event-triggered controller also satisfies bandwidth restrictions by achieving a substantially low control usage. The results obtained from numerical simulations are indeed encouraging. It demonstrates the proposed controller as a potential alternative to the periodically sampled data controllers. Moreover, the proposed control strategy successfully eludes the unwanted unwinding phenomenon encountered in quaternion based attitude control of the spacecraft.