Fuzzy adaptive observer-based fault estimation design with adjustable parameter for satellite under unknown actuator faults and perturbations

doi:10.1049/cth2.12267

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	Fuzzy adaptive observer-based fault estimation design with adjustable parameter for satellite under unknown actuator faults and perturbations
	Y. B. Li; W. Xu and L. Chang
	2022
发表期刊	Iet Control Theory and Applications
ISSN	1751-8644
卷号	16 期号:8 页码:741-761
摘要	This study considers the problem of fault estimation for rigid satellite in the presence of external disturbances, parameter perturbations, and actuator time-varying faults. Firstly, a Takagi-Sugeno (T-S) fuzzy model with interval matrix for satellite attitude system under large attitude angle scope is established, along with a detailed analysis of actuator faults in terms of additive and multiplicative descriptions. Then, a novel fuzzy adaptive observer with adjustable parameter is proposed to estimate both system states and actuator faults. The estimated errors are proved to be uniformly ultimately bounded, based on descriptor augmentation technique and Lyapunov stability theory. The proposed observer realizes a lower estimation performance index in terms of quantitative assessment compared to existing observer methods. Furthermore, an auxiliary optimization variable and the elimination method are applied to decrease the conservatism of the proposed design. And an intuitive quantitative performance index of fault estimation is introduced to obtain reliable evaluation and decision. Finally, numerical simulations and analyses of rigid satellite illustrate the effectiveness and benefit of the proposed strategy.
DOI	10.1049/cth2.12267
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66686
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. B. Li,W. Xu and L. Chang. Fuzzy adaptive observer-based fault estimation design with adjustable parameter for satellite under unknown actuator faults and perturbations[J]. Iet Control Theory and Applications,2022,16(8):741-761.
APA	Y. B. Li,&W. Xu and L. Chang.(2022).Fuzzy adaptive observer-based fault estimation design with adjustable parameter for satellite under unknown actuator faults and perturbations.Iet Control Theory and Applications,16(8),741-761.
MLA	Y. B. Li,et al."Fuzzy adaptive observer-based fault estimation design with adjustable parameter for satellite under unknown actuator faults and perturbations".Iet Control Theory and Applications 16.8(2022):741-761.

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