期刊
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE
卷 -, 期 -, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207721.2023.2169845
关键词
Interconnected nonlinear systems; Bouc-Wen hysteresis; decentralised control; dynamic surface control (DSC); event-triggered mechanism
This article proposes an event-based adaptive decentralised output feedback control scheme for interconnected systems with Bouc-Wen hysteresis and unmeasured system states. A novel dynamic threshold adjustable event-triggering mechanism is proposed to enhance communication efficiency. Neural networks-based observer and dynamic surface control method are used to address the problems of unmeasured states and complexity explosion. The Nussbaum function is introduced to eliminate the effect of unknown hysteresis, and the effectiveness of the developed control scheme is verified through simulation example.
This article presents an event-based adaptive decentralised output feedback control scheme for interconnected systems with Bouc-Wen hysteresis and unmeasured system states. To reduce some unnecessary data transmissions, a novel dynamic threshold adjustable event-triggering mechanism is proposed. In contrast with the traditional static threshold event-triggering mechanism, communication efficiency is greatly enhanced. Then, a neural networks-based observer is constructed to address the problem of unmeasured states, and the dynamic surface control method is used to address the 'explosion of complexity' that comes up when traditional backstepping design processes are used. Meanwhile, the Nussbaum function is introduced to eliminate the effect of unknown hysteresis. By resorting to the Lyapunov stability theory, it can be verified that all signals in the close-loop system are uniformly ultimately bounded. Finally, a simulation example is given to verify the effectiveness of the developed control scheme.
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