☆ 4.6 Letter

First attempt of barrier functions for Caputo's fractional-order nonlinear dynamical systems

SCIENCE CHINA-INFORMATION SCIENCES (2023)

Fault Estimation and Accommodation of Fractional-Order Nonlinear, Switched, and Interconnected Systems

Chencheng Zhang et al.

Summary: This article discusses the fault estimation and fault accommodation methods for fractional-order systems, and provides corresponding schemes. Additionally, these methods are extended to fractional-order switched and interconnected systems, and applicable approaches are proposed.

IEEE TRANSACTIONS ON CYBERNETICS (2022)

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Article Automation & Control Systems

Exponential-Alpha Safety Criteria of a Class of Dynamic Systems With Barrier Functions

Zheren Zhu et al.

Summary: This article focuses on the operational safety criterion for dynamic systems with barrier function. It proposes a novel relaxed safety judgement criteria and explores the use of control barrier function to achieve operational safety. Additionally, it introduces multi-hypersphere methods for constructing barrier functions and improving the relationship between safe and unsafe state sets. The effectiveness of the proposed criteria is demonstrated through simulation examples.

IEEE-CAA JOURNAL OF AUTOMATICA SINICA (2022)

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Article Automation & Control Systems