Blockchain-Enabled Cyber-Secure Microgrid Control Using Consensus Algorithm

Research output: Contribution to conferencePaperpeer-review

9 Scopus Citations

Abstract

This paper proposes a distributed control method based on a consensus algorithm for distributed energy resources (DERs) using blockchain as a secure communication medium for cyber resilience. Each DER communicates with a local blockchain server that is maintained by the distributed ledger technology to allow for securely sharing local measurements among neighbouring assets to achieve the global control objectives, i.e., voltage and frequency regulation as well as accurate power sharing among the DERs, including collective grid-forming capability. To prove that the distributed control can retain system stability under a blockchain-induced variable communication delay, Lyapunov function-based stability analysis is carried out. This paper demonstrates the concept on an 11-bus test case developed in MATLAB Simulink, which has been modified from the IEEE 9-bus test case, to study dynamic operations of the five inverter-based DERs working with a blockchain-induced variable delay. The results validate the superior performance of the proposed control method, compared to heavily compromised operations of the other test cases without the security measure, affected by heavy communication delays and communication interruptions.

Original languageAmerican English
Number of pages7
DOIs
StatePublished - 2021
Event22nd IEEE Workshop on Control and Modelling of Power Electronics, COMPEL 2021 - Cartagena, Colombia
Duration: 2 Nov 20215 Nov 2021

Conference

Conference22nd IEEE Workshop on Control and Modelling of Power Electronics, COMPEL 2021
Country/TerritoryColombia
CityCartagena
Period2/11/215/11/21

Bibliographical note

See NREL/CP-5D00-78958 for preprint

NREL Publication Number

  • NREL/CP-5D00-82278

Keywords

  • blockchains
  • consensus algorithm
  • delays
  • security
  • software packages
  • stability analysis
  • voltage measurement

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