Cascading failure analysis of cyber-physical power systems under communication congestion

Mohamed Emad Farrag, Xue Li, Tao Cheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is inevitable that cascading failure occur in cyberphysical power systems (CPPS). With the growing integration of power grids and communication networks, the congestion of message packets in communication networks will aggravate the spread of cascading failure, even may cause large-scale power cut of blackouts. Firstly, the topological and interactions characteristics between power grids and communication networks are analyzed, and a CPPS model is constructed based on the concepts of complex networks. Secondly, considering the congestion problem of message packets in the communication network, an
optimal routing strategy of the betweenness centrality to capacity ratio tree (BCCT) approach based on publish-subscribe network (PSN) architecture is presented to reconstruct the transmission paths. Then, to reduce the spread of cascading failure, a cascading failure modeling method of CPPS based on direct current (DC) power flow and optimal routing strategy is addressed. Finally, the
IEEE 39-bus is used as a blueprint for simulation verification, and the results demonstrate the effectiveness and superiority of the proposed method in comparison with other classical approaches.
Original languageEnglish
Title of host publicationProceedings of 2021 International Conference on Cyber-physical Social Intelligence
PublisherIEEE
Publication statusAccepted/In press - 11 Nov 2021

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