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Event-driven fault-...
Event-driven fault-tolerant attitude control of spacecraft with finite-time disturbance observer under input saturation
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- Amrr, Syed (författare)
- Linköpings universitet,Reglerteknik,Tekniska fakulteten,Indian Inst Technol Delhi, India; Indian Inst Technol Delhi, India
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- Saidi, Abdelaziz Salah (författare)
- King Khalid Univ, Saudi Arabia; Univ Tunis Manar, Tunisia
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- Nabi, M. (författare)
- Indian Inst Technol Delhi, India
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(creator_code:org_t)
- 2023-01-05
- 2023
- Engelska.
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Ingår i: International Journal of Robust and Nonlinear Control. - : WILEY. - 1049-8923 .- 1099-1239. ; 33:5, s. 3227-3246
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This paper investigates the attitude stabilization problem for a bandwidth-constrained spacecraft subjected to model uncertainty, external disturbances, actuator faults, and saturated input. The proposed attitude controller is developed by combining the disturbance observer with an event-trigger technique to provide disturbance attenuation meanwhile respecting the constraint on the wireless control network. The proposed disturbance observer estimates the lumped disturbance within a finite time, and its output is then fed to the composite control law. The presented control scheme relaxes the use of a priori upper bound knowledge of disturbance and resolves the unwinding problem in the quaternion-based attitude representation. The closed-loop stability analysis under the proposed algorithm shows the uniformly ultimately bounded convergence of state trajectories. Moreover, the designed event trigger approach avoids the Zeno behavior. The numerical simulation with comparative analysis illustrates the efficacy of the proposed controller in terms of convergence time, steady-state bound, rate of control update, and energy consumption.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
Nyckelord
- actuator fault; even-trigger technique; finite-time convergence; unwinding; Zeno behavior
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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