Load-induced cascading failures in interconnected network systems

Chao Ding, Hong Yao (), Jun Du () and Xing Zhao Peng ()
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Chao Ding: Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an 710038, P. R. China
Hong Yao: #x2020;Science College, Air Force Engineering University, Xi’an 710051, P. R. China
Jun Du: Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an 710038, P. R. China
Xing Zhao Peng: Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi’an 710038, P. R. China

International Journal of Modern Physics C (IJMPC), 2018, vol. 29, issue 08, 1-15

Abstract: Revealing how the interdependency between different networks affects the load-induced cascading failures is a new interesting topic recently. A new cascading failure model for interconnected network system is introduced in this paper, in which the loads of the failed nodes can be transmitted between different layer networks or among each layer network, the ratio is adjusted with a defined parameter Tf which can be viewed as a measure of coupling strength. Based on the proposed model, we find that under different attacking strategies and different value of Tf, different coupling types have different effects on the robustness of interconnected network systems. We mainly focus on the robustness of interconnected network with random coupling under intentional attack, we find there being a threshold Tf∗, when TfTf∗, if the capacity redundancy of interconnected network is low, increasing Tf tends to enhance the robustness of interconnected network system. In addition, we also get the conclusion that increasing the total amount of loads in one layer network or the unbalance of load distribution between different layer networks will decline the robustness of the interconnected network system. We hope our work will shed some light on designing high-robust interconnected network systems or improving the robustness of interconnected network systems.

Keywords: Interconnected network; cascading failure; robustness; coupling strength; coupling types (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (1)

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DOI: 10.1142/S0129183118500730

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