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Adaptive Protection Coordination Method Design of Remote Microgrid for Three-Phase Short Circuit Fault

Author

Listed:
  • Wookyu Chae

    (Smart Power Distribution Laboratory, Distribution Planning Group, KEPCO Research Institute, Daejeon 34056, Korea)

  • Jung-Hun Lee

    (Smart Power Distribution Laboratory, Distribution Planning Group, KEPCO Research Institute, Daejeon 34056, Korea)

  • Woo-Hyun Kim

    (Smart Power Distribution Laboratory, Distribution Planning Group, KEPCO Research Institute, Daejeon 34056, Korea)

  • Sungwook Hwang

    (Smart Power Distribution Laboratory, Distribution Planning Group, KEPCO Research Institute, Daejeon 34056, Korea)

  • Jun-Oh Kim

    (Korea Electric Power Corporation, Daegu 41590, Korea)

  • Jae-Eon Kim

    (School of Electrical Engineering, Chungbuk National University, Cheongju 28644, Korea)

Abstract

Generally, the fault current supplied by inverter-based renewable energy sources (IBRES) and electrical storage systems (ESS) is about 1.2 to 2 times their rated current and much lower than synchronous generators because the former acts as a current source and the latter acts as a voltage source. A conventional power system in a small island is composed of only synchronous generators and protected from short circuit faults using an overcurrent relay (OCR). However, in the remote microgrid with IBRES, ESS, and synchronous generators, the fault current varies depending on the configuration of generation sources. Namely, the fixed OCR protection method cannot protect microgrids from short circuit faults. This paper proposes an adaptive protection method to protect the microgrid from faults by actively changing the OCR setting according to the state of the generator source combination. A microgrid with ESS and a synchronous generator is modeled and simulated through PSCAD/EMTDC software to validate the proposed adaptive protection method.

Suggested Citation

  • Wookyu Chae & Jung-Hun Lee & Woo-Hyun Kim & Sungwook Hwang & Jun-Oh Kim & Jae-Eon Kim, 2021. "Adaptive Protection Coordination Method Design of Remote Microgrid for Three-Phase Short Circuit Fault," Energies, MDPI, vol. 14(22), pages 1-20, November.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:22:p:7754-:d:682609
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    References listed on IDEAS

    as
    1. Bui, Duong Minh & Chen, Shi-Lin & Lien, Keng-Yu & Chang, Yung-Ruei & Lee, Yih-Der & Jiang, Jheng-Lun, 2017. "Investigation on transient behaviours of a uni-grounded low-voltage AC microgrid and evaluation on its available fault protection methods: Review and proposals," Renewable and Sustainable Energy Reviews, Elsevier, vol. 75(C), pages 1417-1452.
    2. Bui, Duong Minh & Chen, Shi-Lin, 2017. "Fault protection solutions appropriately proposed for ungrounded low-voltage AC microgrids: Review and proposals," Renewable and Sustainable Energy Reviews, Elsevier, vol. 75(C), pages 1156-1174.
    3. Dae-Geun Jin & Jong-Chan Choi & Dong-Jun Won & Hak-Ju Lee & Woo-Kyu Chae & Jung-Sung Park, 2012. "A Practical Protection Coordination Strategy Applied to Secondary and Facility Microgrids," Energies, MDPI, vol. 5(9), pages 1-18, August.
    Full references (including those not matched with items on IDEAS)

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    Cited by:

    1. Mengjiao Wang & Xinlao Wei & Zhihang Zhao, 2022. "Short-Circuit Fault Current Parameter Prediction Method Based on Ultra-Short-Time Data Window," Energies, MDPI, vol. 15(23), pages 1-15, November.
    2. Murillo Cobe Vargas & Oureste Elias Batista & Yongheng Yang, 2023. "Estimation Method of Short-Circuit Current Contribution of Inverter-Based Resources for Symmetrical Faults," Energies, MDPI, vol. 16(7), pages 1-27, March.
    3. Sung-Moon Choi & Byeong-Gill Han & Mi-Young Kim & Dae-Seok Rho, 2022. "Operation Algorithm for Protection Coordination Device in High-Voltage Customer with ESS for Demand Management," Energies, MDPI, vol. 15(9), pages 1-12, April.

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