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Current- and Voltage-Actuated Transmission Line Protection Scheme Using a Hybrid Combination of Signal Processing Techniques

Author

Listed:
  • Ligang Tang

    (School of Electrical and Electronic Information Engineering, Hubei Polytechnic University, Huangshi 435003, China
    These authors contributed equally to this work.)

  • Om Prakash Mahela

    (Power System Planning Division, Rajasthan Rajya Vidyut Prasaran Nigam Ltd., Jaipur 302005, India
    Engineering Research and Innovation Group (ERIG), Universidad Internacional Iberoamericana, Campeche 24560, Mexico
    These authors contributed equally to this work.)

  • Baseem Khan

    (Engineering Research and Innovation Group (ERIG), Universidad Internacional Iberoamericana, Campeche 24560, Mexico
    Department of Electrical and Computer Engineering, Hawassa University, Hawassa P.O. Box 05, Ethiopia
    These authors contributed equally to this work.)

  • Yini Miro

    (Higher Polytechnic School, Universidad Europea del Atlántico, C/Isabel Torres 21, 39011 Santander, Spain
    Department of Project Management, Universidad Internacional Iberoamericana, Campeche 24560, Mexico
    Department of Project Management, Universidad Internacional Iberoamericana, Arecibo 00613, Puerto Rico)

Abstract

This paper presents a current- and voltage-driven protection scheme for transmission lines based on a hybrid mix of Stockwell transform (ST) and Hilbert transform (HT). Use of both current and voltage waveforms to detect and categorize faults, improves the reliability of this protection scheme and avoids false tripping. Current and voltage waveforms captured during a period of fault are analyzed using ST to compute a median intermediate fault index (MIFI), a maximum value intermediate fault index (MVFI), and a summation intermediate fault index (SIFI). Current and voltage signals are analyzed via applying HT to compute a Hilbert fault index (HFI). The proposed hybrid current and voltage fault index (HCVFI) is obtained from the MIFI, MVFI, SIFI, and HFI. A threshold magnitude for this hybrid current and voltage fault index (HCVFITH) is set to 500 to identify the faulty phase. The HCVFIT is selected after testing the method for various conditions of different fault locations, different fault impedances, different fault occurrence angles, and reverse flows of power. Fault classification is performed using the number of faulty phases and an index for ground detection (IGD). The ground involved in a fault is detected by comparison of peak IGD magnitude with a threshold for ground detection (THGD). THGD is considered equal to 1000 in this study. The study is carried out using a two-terminal transmission line modeled in MATLAB software. The performance of the proposed technique is better compared to a discrete wavelet transform (DWT)-based technique, a time–frequency approach, and an alienation method. Our algorithm effectively detected an AG fault, observed on a practical transmission line.

Suggested Citation

  • Ligang Tang & Om Prakash Mahela & Baseem Khan & Yini Miro, 2023. "Current- and Voltage-Actuated Transmission Line Protection Scheme Using a Hybrid Combination of Signal Processing Techniques," Sustainability, MDPI, vol. 15(7), pages 1-26, March.
  • Handle: RePEc:gam:jsusta:v:15:y:2023:i:7:p:5715-:d:1106681
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