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Centralized Multiple Back-Up Protection Scheme with Sharing Data between Adjacent Substations Based on IEC 61850

Author

Listed:
  • Min-Soo Kim

    (Department of Electrical Engineering, Myongji University, Yongin 17058, Korea)

  • Sang-Hee Kang

    (Department of Electrical Engineering, Myongji University, Yongin 17058, Korea)

Abstract

A centralized multiple back-up protection scheme with sharing data between adjacent substations based on IEC 61850 is suggested in this paper to overcome the inherent defects of a conventional back-up protection scheme such as uncertainty of a remote end condition, especially for a distance relay, long operating time delay, and IED/CT fails. A current differential protection element, a distance-based directional protection element, local back-up, and remote back-up protection elements are applied for the multiple back-up protection scheme suggested in this paper. The phasor voltage/current data of the IMU are transferred to a CPCU. In this paper, the IMU has two functions, which are local protection IED and merging unit, as well. The CPCU performs the back-up protection functions by using the phasor voltage/current data collected from other CPCUs located at the adjacent substations. IMU/CT fails are also considered. To verify the back-up protection scheme proposed, a testbed was composed of IMUs (implemented with ADS8688 and TMDSIDK572X), grand-master-clocks (LANTIME M1000-IMS), network switches (Syn 1588 Gbit switch), RTDS, and CPCUs. A target power system was modelled with RSCAD. The results of this research can be expected to provide a practical guide to constructing the future centralized protection for a digital substation.

Suggested Citation

  • Min-Soo Kim & Sang-Hee Kang, 2022. "Centralized Multiple Back-Up Protection Scheme with Sharing Data between Adjacent Substations Based on IEC 61850," Energies, MDPI, vol. 15(12), pages 1-20, June.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:12:p:4195-:d:833388
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    Cited by:

    1. Ângelo Felipe Sartori & Adriano Peres de Morais & Ulisses Chemin Netto & Diomar Adonis Copetti Lima & Daniel Pinheiro Bernardon & Wagner Seizo Hokama, 2023. "Performance Analysis of Overcurrent Protection under Corrupted Sampled Value Frames: A Hardware-in-the-Loop Approach," Energies, MDPI, vol. 16(8), pages 1-14, April.

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