Robustness improvement strategy of cyber-physical systems with weak interdependency

Shuliang Wang, Xifeng Gu, Jiawei Chen, Chen Chen and Xiaodi Huang

Reliability Engineering and System Safety, 2023, vol. 229, issue C

Abstract: As technologies are advancing at a rapid pace, the robustness of cyber-physical systems becomes increasingly critical. This paper presents a methodological framework for enhancing the robustness of cyber-physical systems in different failure scenarios. In particular, an AC power flow model and routing scheme are combined to model cyber-physical systems. A weak interdependency is then introduced to accurately characterize cascading failures. Different improvement strategies are finally proposed by comparing their influences on cyber-physical systems from both structural and functional perspectives. For validating the performance of the proposed framework, a case study has been conducted on several simulations. The results have shown that the key node protection strategy can alleviate the impacts of initial failures, while interdependency adjustment strategies can mitigate cascading failures. Specifically, the robustness of using the betweenness-based protection strategy has increased by 60%. The application of the performance degree based interdependency adjustment strategy has still resulted in improving robustness by 24% even if the proportion of node removals is 35%.

Keywords: Cyber-physical systems; Weak interdependency; Complex network; Failure scenarios; Robustness improvement strategy (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0951832022004549
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:229:y:2023:i:c:s0951832022004549

DOI: 10.1016/j.ress.2022.108837

Access Statistics for this article

Reliability Engineering and System Safety is currently edited by Carlos Guedes Soares

More articles in Reliability Engineering and System Safety from Elsevier
Bibliographic data for series maintained by Catherine Liu ().