Journal
IEEE TRANSACTIONS ON SMART GRID
Volume 12, Issue 5, Pages 3705-3717Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSG.2021.3069331
Keywords
Microgrids; Computer crime; Decentralized control; Computer security; Communication networks; Distributed databases; Power system stability; Cross-layer distributed control; cybersecurity; microgrid; resilience
Categories
Funding
- National Natural Science Foundation of China [51777062]
- Deanship of Scientific Research (DSR) at King Abdulaziz University [RG-10-135-41, TSG-01231-2020]
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The paper proposes a cross-layer control strategy to enhance microgrid resilience against cyberattacks, which can maintain normal microgrid operations when there are no cyberattacks and effectively mitigate the impacts of cyberattacks. The stability of the proposed control strategy is demonstrated under different scenarios, and its effectiveness against cyberattacks is validated through simulations in a 12-bus microgrid system.
The widespread adoption of communication and control infrastructures will not only improve the microgrid system performance in normal conditions but also increase microgrid cybersecurity risks. Potential cyberattacks can deteriorate microgrid performances by corrupting and intercepting data exchanges among participating DERs, whereby microgrids deviate from desired operating conditions and stable microgrid operations are jeopardized. In this paper, a cross-layer control strategy is proposed to enhance the microgrid resilience against false data injection (FDI) and denial of service (DoS) attacks. On the one hand, the proposed control strategy will not interfere with microgrid normal operations when there are no cyberattacks. On the other hand, the proposed control strategy can effectively mitigate the impacts of FDI and DoS attacks on microgrids without relying on prompt detection and isolation of cyberattacks. The stability of the proposed control strategy is demonstrated using the Lyapunov theory under different scenarios, including without and with FDI and DoS attacks. The effectiveness of the proposed cross-layer resilient control strategy against cyberattacks is validated in a 12-bus microgrid system using time-domain PSCAD/EMTDC simulations.
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