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The Half-Sine Method: A New Accurate Location Method Based on Wavelet Transform for Transmission-Line Protection from Single-Ended Measurements

Author

Listed:
  • Susana Martín Arroyo

    (Dpto. Ingeniería Eléctrica, Universidad de Zaragoza, 50018 Zaragoza, Spain)

  • Miguel García-Gracia

    (Dpto. Ingeniería Eléctrica, Universidad de Zaragoza, 50018 Zaragoza, Spain)

  • Antonio Montañés

    (Dpto. Ingeniería Eléctrica, Universidad de Zaragoza, 50018 Zaragoza, Spain)

Abstract

In this work, a new and accurate method based on the wavelet transform is proposed for fault location in transmission-line systems. The proposed wavelet method consists of the analysis of the transient signal measured at a single end of the transmission line. Aerial current modes are used, and zero modes are included in the fault-detection scheme for low fault-inception angles. The fault distance is evaluated using the wavelet modulus maxima technique and a method based on the response to a half-sine voltage is proposed to overcome drawbacks arising from the limited sampling frequency and low fault-inception angle. The fault distance is calculated using the difference between the time when a 100 kHz half-sine signal is sent and the time when the derivative signal is received. The proposed algorithm is tested considering harmonic distortion and varying fault resistance, ground resistivity, location and inception angle. The high accuracy of the proposed algorithm is obtained even for faults close to the bus and low inception angles.

Suggested Citation

  • Susana Martín Arroyo & Miguel García-Gracia & Antonio Montañés, 2019. "The Half-Sine Method: A New Accurate Location Method Based on Wavelet Transform for Transmission-Line Protection from Single-Ended Measurements," Energies, MDPI, vol. 12(17), pages 1-15, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:17:p:3293-:d:261234
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    References listed on IDEAS

    as
    1. Chengbin Wang & Zhihao Yun, 2019. "Parameter-Free Fault Location Algorithm for Distribution Network T-Type Transmission Lines," Energies, MDPI, vol. 12(8), pages 1-17, April.
    2. Rui Liang & Zhi Yang & Nan Peng & Chenglei Liu & Firuz Zare, 2017. "Asynchronous Fault Location in Transmission Lines Considering Accurate Variation of the Ground-Mode Traveling Wave Velocity," Energies, MDPI, vol. 10(12), pages 1-18, November.
    3. Shuo Zhang & Guibin Zou & Qiang Huang & Houlei Gao, 2018. "A Traveling-Wave-Based Fault Location Scheme for MMC-Based Multi-Terminal DC Grids," Energies, MDPI, vol. 11(2), pages 1-15, February.
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