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- Title
Active fault-tolerant attitude control for flexible spacecraft with loss of actuator effectiveness.
- Authors
Xiao, Bing; Hu, Qinglei; Friswell, Michael I.
- Abstract
SUMMARY A theoretical framework for active fault-tolerant attitude stabilization control is developed and applied to flexible spacecraft. The proposed scheme solves a difficult problem of fault-tolerant controller design in the presence of severe partial loss of actuator effectiveness faults and external disturbances. This is accomplished by developing an observer-based fault detection and diagnosis mechanism to reconstruct the actuator faults. Accordingly, a backstepping-based fault-tolerant control law is reconfigured using the reconstructed fault information. It is shown that the proposed design approach guarantees that all of the signals of the closed-loop system are uniformly ultimately bounded. The closed-loop performance of the proposed control strategy is evaluated extensively through numerical simulations. Copyright © 2012 John Wiley & Sons, Ltd.
- Subjects
FAULT-tolerant control systems; SPACECRAFT computers; ACTUATORS; CLOSED loop systems; COMPUTER simulation
- Publication
International Journal of Adaptive Control & Signal Processing, 2013, Vol 27, Issue 11, p925
- ISSN
0890-6327
- Publication type
Article
- DOI
10.1002/acs.2363