journal article Jul 10, 2022

Constrained multi‐observer‐based fault‐tolerant disturbance‐rejection control for rigid spacecraft

Abstract
AbstractThis article develops a multi‐observer‐based fault‐tolerant disturbance‐rejection control strategy to solve the attitude stabilization problem of spacecraft subject to multisource complex disturbances, for example, external disturbance, measurement error, actuator fault, input constraint. First, two intermediate variables are introduced for multi‐observer design, so that the synergistic estimations of attitude information, actuator fault and external disturbance are obtained simultaneously. Then, a fault‐tolerant disturbance‐rejection control strategy is proposed based on the estimations, and an augmented closed‐loop system is derived. Afterwards, Lyapunov stability analysis is performed to prove the quadratic stability and robust performance, and corresponding conditions in terms of linear matrix inequalities (LMIs) is proved, where the input constraint is satisfied as well. Finally, numerical simulations of a spacecraft attitude control system are performed which demonstrate the effectiveness and superiority of the proposed multi‐observer‐based control strategy.
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References
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Composite disturbance‐observer‐based control andH∞control for complex continuous models

Xinjiang Wei, Lei Guo

International Journal of Robust and Nonlinear Cont... 10.1002/rnc.1425
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A composite disturbance observer and H∞ control scheme for flexible spacecraft with measurement delay and input delay

Jianzhong QIAO, Xiaofeng Li, Jianwei Xu

Chinese Journal of Aeronautics 10.1016/j.cja.2018.10.013
Cited By
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Metrics
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Citations
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References
Details
Published
Jul 10, 2022
Vol/Issue
32(14)
Pages
8102-8133
License
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Funding
National Natural Science Foundation of China Award: 62103336
China Postdoctoral Science Foundation Award: 2020M683571
Guangdong Basic and Applied Basic Research Foundation Award: 2021A1515110539
Cite This Article
Bailiang Lyu, Xiaokui Yue, Chuang Liu (2022). Constrained multi‐observer‐based fault‐tolerant disturbance‐rejection control for rigid spacecraft. International Journal of Robust and Nonlinear Control, 32(14), 8102-8133. https://doi.org/10.1002/rnc.6270