Vulnerability analysis of a smart grid with monitoring and control system

Maggie Cheng, Mariesa Crow, Robert F. Erbacher

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

1 Scopus citations

Abstract

Large scale power outage is typically the consequence of cascading failures propagated through a power system. To mitigate failure propagation, wide area monitoring and control system is introduced. However, as the physical system is tightly coupled with the cyber system, new threats are introduced due to possible cyber attacks and failures of the communication system. This paper presents a new framework for vulnerability analysis. Under this framework, we can identify the vulnerable components and the critical components of a cyber physical system. Distinct from previous work, our model considers the interaction between the different components of the cyber physical system, and models the dynamic evolving process of cascading failures. The impact of a component failure on the system is dynamically changing as the failure propagates. We formulate the vulnerability analysis problem as an optimization problem and use linear programming to solve it. Since instability is the reason of power outage, we use an instability index to measure the negative impact to the system. The results from this optimization problem suggest which components of the system are critical since their failure can most negatively impact the cyber-physical system.

Original languageEnglish (US)
Title of host publication8th Annual Cyber Security and Information Intelligence Research Workshop
Subtitle of host publicationFederal Cyber Security R and D Program Thrusts, CSIIRW 2013
DOIs
StatePublished - Apr 15 2013
Event8th Annual Cyber Security and Information Intelligence Research Workshop: Federal Cyber Security R and D Program Thrusts, CSIIRW 2013 - Oak Ridge, TN, United States
Duration: Jan 8 2013Jan 10 2013

Publication series

NameACM International Conference Proceeding Series

Other

Other8th Annual Cyber Security and Information Intelligence Research Workshop: Federal Cyber Security R and D Program Thrusts, CSIIRW 2013
CountryUnited States
CityOak Ridge, TN
Period1/8/131/10/13

All Science Journal Classification (ASJC) codes

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

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