Effects of coupling patterns on functionality and robustness of cyber-coupled power systems

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Detail(s)

Original languageEnglish
Title of host publication2020 IEEE International Symposium on Circuits and Systems (ISCAS) - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781728133201
Publication statusPublished - 2020

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2020-October
ISSN (Print)0271-4310
ISSN (Electronic)2158-1525

Conference

Title52nd IEEE International Symposium on Circuits and Systems (ISCAS 2020)
LocationVirtual
PlaceSpain
CitySeville
Period10 - 21 October 2020

Abstract

The coupling pattern of a cyber-coupled power system is defined by the way power nodes and cyber nodes are connected. In this paper, we study the effect of coupling patterns on robustness and functionality of cyber-coupled power systems. In a cyber-coupled power system, the cyber nodes to be coupled with power nodes are regarded as decision-making cyber nodes that are selected using a measurement called average propagation latency. Basically, a coupling pattern is formed by ranking the node criticality of the coupled cyber and power nodes, and then connecting them by a specific sequence. We introduce a parameter, called relative coupling correlation coefficient, to quantify the coupling pattern. A lower relative coupling correlation coefficient generally indicates a lower assortativity of coupling, which leads to a degradation of the functionality of coupled systems. Preliminary results show that a coupled system of a lower relative coupling correlation coefficient has better robustness. The finding indicates that increasing coupling assortativity and improving the robustness of a coupled system, are two conflicting objectives. Thus, a multi-objective problem is formulated and the Pareto-optimal solution is derived to balance the two objectives in the optimization of coupling patterns.

Citation Format(s)

Effects of coupling patterns on functionality and robustness of cyber-coupled power systems. / Liu, Dong; Tse, Chi K.; Zhang, Xi.

2020 IEEE International Symposium on Circuits and Systems (ISCAS) - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2020. 9180813 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2020-October).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review