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Passive Island Detection Method Based on Sequence Impedance Component and Load-Shedding Implementation

Author

Listed:
  • Sareddy Venkata Rami Reddy

    (Department of Electrical and Electronics Engineering, Vels Institute of Science, Technology & Advanced Studies, Pallavaram, Chennai 600117, India)

  • T. R. Premila

    (Department of Electrical and Electronics Engineering, Vels Institute of Science, Technology & Advanced Studies, Pallavaram, Chennai 600117, India)

  • Ch. Rami Reddy

    (Department of Electrical and Electronics Engineering, Joginpally B. R. Engineering College, Hyderabad 500075, India)

  • Mohammed A. Alharbi

    (Electrical Engineering Department, Taibah University, Naif Bin Abdulaziz Road, P.O. Box 344, Al-Madinah Al-Munawarrah 41477, Saudi Arabia)

  • Basem Alamri

    (Department of Electrical Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia)

Abstract

Active islanding detection techniques majorly affect power quality due to injected harmonic signals, whereas passive methods have a large non-detection zone (NDZ). This article presents a new method based on the resultant sequential impedance component (RSIC) as a new approach to island detection with zero NDZs. The abrupt variable in the conventional impedance approach was replaced by the RSIC of the inverter in this method. When the measured value exceeds the threshold range, islanding is detected by monitoring the variations in the RSIC at the point of common coupling (PCC). For proper power utilization in the identified islands, a priority-based load-shedding strategy is also recommended and implemented in this article. Its efficacy was verified in a wide range of real-world settings. It offers superior stability in various non-islanding (NIS) scenarios to prevent accidental tripping. The proposed method advantages include a cheap cost, the simplicity of implementation, independence from the number and type of distributed generation (DG) units connected, and no power quality effects. Compared to other methods reported in the literature, the obtained detection times illustrate that the proposed method is superior.

Suggested Citation

  • Sareddy Venkata Rami Reddy & T. R. Premila & Ch. Rami Reddy & Mohammed A. Alharbi & Basem Alamri, 2023. "Passive Island Detection Method Based on Sequence Impedance Component and Load-Shedding Implementation," Energies, MDPI, vol. 16(16), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:16:p:5880-:d:1213116
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    References listed on IDEAS

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    1. Faisal Mumtaz & Kashif Imran & Abdullah Abusorrah & Syed Basit Ali Bukhari, 2023. "An Extensive Overview of Islanding Detection Strategies of Active Distributed Generations in Sustainable Microgrids," Sustainability, MDPI, vol. 15(5), pages 1-19, March.
    2. Mohammad Abu Sarhan, 2023. "An Extensive Review and Analysis of Islanding Detection Techniques in DG Systems Connected to Power Grids," Energies, MDPI, vol. 16(9), pages 1-22, April.
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