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Observer-Based Event-Triggered H Control for Singular Systems with Unknown Disturbances

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Abstract

The purpose of this paper is to study the event-triggered H control problem of network singular systems with unknown disturbances. First, we use an adaptive event-triggered scheme suitable for singular systems, which can adaptively adjust the trigger parameters of dynamic errors in order to economize confined network resources and downgrade conservatism. In this paper, the singular system is taken as the controlled object, and two observers are designed to assess the state and disturbance of the system, respectively. Therefore, a novel adaptive event-triggered H control for singular systems with extended state observer is proposed. Second, by constructing a new Lyapunov functional, and using linear matrix inequalities and the theory of Lyapunov stability, the conditions for the system's asymptotic stability are obtained. Finally, to demonstrate the validity of the derived results, some simulations and comparisons are provided.

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Data Availability Statement

The data sets generated and analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

This work was supported by the National Nature Science Foundation of China under Grant (51879060), and the Natural Science Foundation of Heilongjiang Province of China under Grant YQ2019F004.

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Correspondence to Xinhua Zhao.

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Liu, X., Feng, Z., Zhao, X. et al. Observer-Based Event-Triggered H Control for Singular Systems with Unknown Disturbances. Circuits Syst Signal Process 40, 5935–5954 (2021). https://doi.org/10.1007/s00034-021-01760-3

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