Defensive Islanding to Enhance the Resilience of Distribution Systems Against Cyber-Induced Failures

Michael Abdelmalak, Mukesh Guatam, Jitendra Thapa, Eliza Hotchkiss, Mohammed Benidris

Research output: Contribution to conferencePaperpeer-review

1 Scopus Citations


The extensive integration of communication, computation, and control technologies into cyber-physical power systems (CPPSs) has increased the vulnerabilities of CPPSs to cyberattacks. This calls for developing solutions that assess and reduce the impacts of cyber-induced failures on CPPSs. This paper proposes a defensive islanding strategy to isolate impacted parts of the CPPS and form self-sufficient islanded grids with an objective of minimum load curtailment. The defensive islanding aims to split a power system into smaller grids to improve its resilience against a potential extreme event. A clustering approach that leverages the hierarchical spectral clustering method is utilized for the optimal defensive islanding. The proposed approach captures the fragility behavior and loading conditions of power system components due to cyber-induced failures. A graphical-based coupling framework is used to map the impacts of cyber failures into operation of power system components. The proposed method is demonstrated on a modified 33-node distribution feeder system integrated with distributed energy resources. The amount of load curtailment and radiality constraints have been used to evaluate the performance of the proposed clustering strategies. The results show the capability of the proposed algorithm to create islands considering the cyber-induced failures for enhanced resilience.

Original languageAmerican English
Number of pages8
StatePublished - 2022
Event2022 IEEE Industry Applications Society Annual Meeting, IAS 2022 - Detroit, United States
Duration: 9 Oct 202214 Oct 2022


Conference2022 IEEE Industry Applications Society Annual Meeting, IAS 2022
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

NREL Publication Number

  • NREL/CP-5R00-85102


  • Cyber-induced failures
  • cyber-physical system
  • islanding
  • microgrid
  • resilience


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