DC Microgrids Under Denial of Service Attacks: Feasibility and Stability Issues

Jianzhe Liu, Bai Cui, Bo Chen, Xiaonan Lu, Feng Qiu, Sudip Mazumder

Research output: Contribution to conferencePaper

2 Scopus Citations


Distributed control has been extensively studied for a DC microgrid to coordinate multiple grid assets where each asset can generate its own control decisions based on communications within its neighborhood. Nevertheless, such a control strategy usually has a strong dependence on active information exchange and needs to always maintain a pre-determined communication graph. This makes it vulnerable to cyber attacks, especially denial of service (DoS) attacks that block communication channels that effectively change the communication graph. In this paper, we study two potential impacts of DoS attacks: the inability to maintain steady-state and dynamical generation-demand balance, i.e. the feasibility and stability issues. We develop a mathematical model to describe the cyber-induced system steady-state and dynamical performance. The model reveals the impacts of DoS attacks and enables formal analysis. Case studies are shown to verify the proposed work.
Original languageAmerican English
Number of pages7
StatePublished - 2020
Event2020 IEEE Energy Conversion Congress and Exposition (ECCE) - Detroit, Michigan
Duration: 11 Oct 202015 Oct 2020


Conference2020 IEEE Energy Conversion Congress and Exposition (ECCE)
CityDetroit, Michigan

NREL Publication Number

  • NREL/CP-5D00-78711


  • communication channels
  • communication networks
  • mathematical model
  • microgrids
  • stability analysis
  • steady-state
  • voltage control


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