TY - GEN
T1 - Critical node analysis (CNA) in power grids under enhanced restoration options
AU - Venkateswaran, Venkat
AU - Aved, Alex
AU - Ferris, David
AU - Morrone, Philip
N1 - Publisher Copyright:
© 2021 SPIE
PY - 2021
Y1 - 2021
N2 - In recovering from cyber attacks on power grids, restoration steps have also included disconnecting parts of the network to prevent failures from propagating. Inspired by these reports we investigate how this may be performed optimally. We show how throughput can indeed be increased by selectively disconnecting links when the network is currently stressed and unable to meet all of the demands. We also consider the impact of this option on critical node analysis. For defensive as well as offensive scenario planning it is important to be able to identify the critical nodes in a given network. We show how ignoring this option of disconnecting links can lead to misidentifying critical nodes, overstating the impact of these nodes. We outline an iterative procedure to address this problem and correctly identify critical nodes when link disconnection is included in the recovery scheme.
AB - In recovering from cyber attacks on power grids, restoration steps have also included disconnecting parts of the network to prevent failures from propagating. Inspired by these reports we investigate how this may be performed optimally. We show how throughput can indeed be increased by selectively disconnecting links when the network is currently stressed and unable to meet all of the demands. We also consider the impact of this option on critical node analysis. For defensive as well as offensive scenario planning it is important to be able to identify the critical nodes in a given network. We show how ignoring this option of disconnecting links can lead to misidentifying critical nodes, overstating the impact of these nodes. We outline an iterative procedure to address this problem and correctly identify critical nodes when link disconnection is included in the recovery scheme.
KW - Critical node analysis
KW - Network optimization
KW - Power network restoration
UR - http://www.scopus.com/inward/record.url?scp=85108850840&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85108850840&partnerID=8YFLogxK
U2 - 10.1117/12.2586171
DO - 10.1117/12.2586171
M3 - Conference contribution
AN - SCOPUS:85108850840
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Geospatial Informatics XI
A2 - Palaniappan, Kannappan
A2 - Seetharaman, Gunasekaran
A2 - Harguess, Joshua D.
PB - SPIE
T2 - Geospatial Informatics XI 2021
Y2 - 12 April 2021 through 16 April 2021
ER -