Vulnerabilities of Line Current Differential Relays to Cyber-Attacks

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Being fast and highly reliable under different conditions, line current differential relays (LCDRs) are high-end protective devices that are deployed to protect DC and critical AC lines. LCDRs, however, are vulnerable to cyber attacks, since this type of relay is dependent on communication infrastructure and the global positioning system (GPS). This susceptibility may enable attackers to fool LCDRs into issuing unwarranted trip signals, and potentially to create an instability if several attacks are coordinated. Through case-studies, this paper shows how coordinated attacks against LCDRs in DC and AC networks can create a voltage collapse in the system. The case-studies are carried on the IEEE 14-bus AC network, as well as on a DC microgrid.

Original languageBritish English
Title of host publication2019 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538682326
DOIs
StatePublished - Feb 2019
Event2019 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2019 - Washington, United States
Duration: 18 Feb 201921 Feb 2019

Publication series

Name2019 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2019

Conference

Conference2019 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2019
Country/TerritoryUnited States
CityWashington
Period18/02/1921/02/19

Keywords

  • AC networks
  • cyber-security
  • DC microgrids
  • false data injection attack
  • line current differential relays
  • voltage instability

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