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Centralized Protection of Networked Microgrids with Multi-Technology DERs

Author

Listed:
  • Adeyemi Charles Adewole

    (Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada)

  • Athula D. Rajapakse

    (Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada)

  • Dean Ouellette

    (RTDS Technologies Inc., Winnipeg, MB R3T 2E1, Canada)

  • Paul Forsyth

    (RTDS Technologies Inc., Winnipeg, MB R3T 2E1, Canada)

Abstract

The structure and connections in networked microgrids consisting of two or more interconnected microgrids is influenced by the dynamic behaviors of power markets, the demand and supply interactions between market participants, and the possibility of operating in the grid-connected or islanded modes. Protection zones in the above-mentioned scenarios are dynamic and should not be determined a priori. Also, fault currents will vary depending on the operating modes, online or offline status of Distributed Energy Resources (DERs), variation of solar irradiation or wind speed, etc. This paper proposes a Centralized Intelligent Station-Level Protection (CISP) approach for the protection of various electric power equipment technologies in networked (interconnected) microgrids using adaptive protective relaying algorithms and a network theory-based zone selection algorithm. The proposed CISP approach utilizes wide area IEC 61869-9 Sampled Values (SVs) measurements and IEC 61850 Generic Object-Oriented Substation Events (GOOSE) messages, intelligently determines the protection zones, and automatically selects the protection algorithms to use in each of the protection zones based on the prevailing system topology and operating conditions. The effectiveness of the proposed CISP approach is demonstrated through real-time simulations using the RTDS ® . The results obtained were promising for the various system configurations, operating conditions, and fault conditions considered.

Suggested Citation

  • Adeyemi Charles Adewole & Athula D. Rajapakse & Dean Ouellette & Paul Forsyth, 2023. "Centralized Protection of Networked Microgrids with Multi-Technology DERs," Energies, MDPI, vol. 16(20), pages 1-24, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:20:p:7080-:d:1259216
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    References listed on IDEAS

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    1. Regin Bose Kannaian & Belwin Brearley Joseph & Raja Prabu Ramachandran, 2023. "An Adaptive Centralized Protection and Relay Coordination Algorithm for Microgrid," Energies, MDPI, vol. 16(12), pages 1-18, June.
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