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Synchronization of second-order Kuramoto networks from the perspective of edge dynamics

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Abstract

This paper presents new synchronization conditions for second-order phase-coupled Kuramoto oscillators in terms of edge dynamics. Two types of network-underlying graphs are studied, the positively weighted and signed graphs, respectively. We apply an edge Laplacian matrix for a positively weighted network to represent the edge connections. The properties of the edge Laplacian matrix are analyzed and incorporated into the proposed conditions. These conditions take account of the dynamics of edge-connected oscillators instead of all oscillator pairs in conventional studies. For a network with positive and negative weights, we represent the network by its spanning tree dynamics, and derive conditions to evaluate the synchronization state of this network. These conditions show that if all edge weights in the spanning tree are positive, and the tree-induced dynamics are in a dominant position over the negative edge dynamics, then this network achieves synchronization. The theoretical findings are validated by numerical examples.

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Acknowledgements

The authors want to thank Prof. Parvaiz Ahmad Naik, Dr and Muhammad Faizan Tahir for their constructive comments that improve this work.

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Authors and Affiliations

  1. School of Physics and Electronic Engineering, Hainan Normal University, Haikou, 571158, Hainan, China

    Liang Wu & Jiuming Zhong

  2. School of Electric Power, South China University of Technology, Guangzhou, 510640, Guangdong, China

    Haoyong Chen

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  1. Liang Wu
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  2. Jiuming Zhong
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Correspondence to Jiuming Zhong.

Additional information

This work was partly supported by the Hainan Provincial Natural Science Foundation of China (422RC667).

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Wu, L., Zhong, J. & Chen, H. Synchronization of second-order Kuramoto networks from the perspective of edge dynamics. Control Theory Technol. 21, 580–590 (2023). https://doi.org/10.1007/s11768-023-00146-x

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  • DOI: https://doi.org/10.1007/s11768-023-00146-x

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