Fixed-time and preassigned-time stochastic synchronization of complex networks via quantized event-triggered strategy

This paper considers the fixed-time (FXT) and preassigned-time (PAT) stochastic synchronization of complex dynamic networks (CDN) based on the quantized event-triggered strategy. First, by applying some constructing comparison systems, more relaxed criteria are proposed for FXT stability and the est...

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Bibliographic Details
Published inNonlinear dynamics Vol. 106; no. 1; pp. 543 - 564
Main Authors He, Qiushi, Li, Chaofeng, Ma, Yuechao
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.09.2021
Springer Nature B.V
Subjects
Automotive Engineering
Classical Mechanics
Communication
Control
Dynamical Systems
Engineering
Mechanical Engineering
Original Paper
Saturation
Settling
Synchronism
Time synchronization
Vibration
Quantized event-triggered control
Stochastic synchronization
Preassigned time
Complex dynamic networks
Fixed time
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Summary:This paper considers the fixed-time (FXT) and preassigned-time (PAT) stochastic synchronization of complex dynamic networks (CDN) based on the quantized event-triggered strategy. First, by applying some constructing comparison systems, more relaxed criteria are proposed for FXT stability and the estimated settling time is more accurate. Second, the FXT quantized event-triggered control schemes with sign or saturation function are designed, in which Zeno behavior is excluded and chattering phenomenon is reduced under the control strategies with saturation function. Besides, the quantized event-triggered control schemes can more effectively save resources of communication and computation. Third, several novel quantized event-triggered strategies are designed to achieve PAT synchronization, where the settling time can be preassigned according to realistic situation and is irrelevant with parameters and initial values of CDN. Finally, numerical example proves the rationality of the theories for the FXT and PAT stochastic synchronization of CDN.
ISSN:0924-090X
1573-269X
DOI:10.1007/s11071-021-06858-6