Sensor fault and cyber attack resilient operation of DC microgrids

S. Saha*, T. K. Roy, M. A. Mahmud, M. E. Haque, S. N. Islam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)


This paper proposes a diagnosis and mitigation strategy for sensor faults and cyber attacks in a DC microgrid to ensure its fault and cyber attack resilient operation. Sliding mode observer-based fault diagnosis theory has been used in the proposed strategy to estimate the error in the sensor measurements due to any sensor fault or cyber attack in a DC microgrid. The estimated errors are used to initiate the proposed mitigation action, which rectifies the corrupted measurements to ensure fault and cyber attack resilient operation of the microgrid. The performance of the proposed strategy has been evaluated through rigorous simulation studies, carried out on a test DC microgrid under various fault and attack conditions. Simulation results clearly demonstrate that the proposed strategy is able to ensure the reliable and efficient operation of a DC microgrid under sensor faults or cyber attack conditions.

Original languageEnglish
Pages (from-to)540-554
Number of pages15
JournalInternational Journal of Electrical Power and Energy Systems
Early online date20 Feb 2018
Publication statusPublished - 1 Jul 2018
Externally publishedYes


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