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Angle Control-Based Multi-Terminal Out-of-Step Protection System

Author

Listed:
  • Antans Sauhats

    (Institute of Power Engineering, Riga Technical University, Azenes 12 k-1, Riga, LV-1048, Latvia)

  • Andrejs Utans

    (Institute of Power Engineering, Riga Technical University, Azenes 12 k-1, Riga, LV-1048, Latvia)

  • Dmitrijs Antonovs

    (Institute of Power Engineering, Riga Technical University, Azenes 12 k-1, Riga, LV-1048, Latvia)

  • Andrejs Svalovs

    (IEEE Member, Brown Bovery Str.7, Baden 5401, Switzerland)

Abstract

From time to time a sequence of unexpected and overlapping contingencies may lead to power system angular instability and even blackouts if not addressed adequately by means of an out-of-step (OOS) protection system. The motivation of the paper is an attempt to develop a workable prototype of the OOS protection system. The deficiencies of the protection currently used in the Latvian Power System network are highlighted and a new protection structure is proposed. The protection system comprises of several strategically located terminals, exchanging information in real time by means of a communication network. The OOS condition detection method is based on system-wide generation sources, electromotive forces, vectors, and angle control. The network splitting decision is based on generator coherence evaluation. Protection terminals determine online the groups of coherent generators and choose the splitting boundary from a predefined transmission lines (TLs) cut sets list. The protection system structure, algorithm of operation, and possible IEC 61850 communication standard-based implementation are described.

Suggested Citation

  • Antans Sauhats & Andrejs Utans & Dmitrijs Antonovs & Andrejs Svalovs, 2017. "Angle Control-Based Multi-Terminal Out-of-Step Protection System," Energies, MDPI, vol. 10(3), pages 1-16, March.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:3:p:308-:d:92176
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    References listed on IDEAS

    as
    1. Honglei Song & Junyong Wu & Kui Wu, 2014. "A Wide-Area Measurement Systems-Based Adaptive Strategy for Controlled Islanding in Bulk Power Systems," Energies, MDPI, vol. 7(4), pages 1-27, April.
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    Cited by:

    1. Antans Sauhats & Andrejs Utans & Jurijs Silinevics & Gatis Junghans & Dmitrijs Guzs, 2021. "Enhancing Power System Frequency with a Novel Load Shedding Method Including Monitoring of Synchronous Condensers’ Power Injections," Energies, MDPI, vol. 14(5), pages 1-21, March.
    2. Ivan Višić & Ivan Strnad & Ante Marušić, 2020. "Synchronous Generator Out of Step Detection Using Real Time Load Angle Data," Energies, MDPI, vol. 13(13), pages 1-22, June.
    3. Igor Ivanković & Igor Kuzle & Ninoslav Holjevac, 2017. "Wide Area Information-Based Transmission System Centralized Out-of-Step Protection Scheme," Energies, MDPI, vol. 10(5), pages 1-28, May.

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