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Research on a Faulty Line Selection Method Based on the Zero-Sequence Disturbance Power of Resonant Grounded Distribution Networks

Author

Listed:
  • Wenquan Shao

    (School of Electronics and Information, Xi’an Polytechnic University, Xi’an 710048, China)

  • Jie Bai

    (School of Electronics and Information, Xi’an Polytechnic University, Xi’an 710048, China)

  • Yuan Cheng

    (School of Electronics and Information, Xi’an Polytechnic University, Xi’an 710048, China)

  • Zhihua Zhang

    (Electric Power Research Institute, State Grid Shaanxi Electric Power Company, Xi’an 710054, China)

  • Ning Li

    (School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China)

Abstract

For fast and accurate faulty line selection (FLS) in single phase-to-ground (SPG) faults for resonant grounded distribution networks (RGDNs), this paper proposes a FLS method based on zero-sequence power characteristics. Through analysis of the zero-sequence current of SPG faults, it is found that the transient zero-sequence current in the faulty line contains abundant attenuated DC components, while that in the sound line is weak, which could be utilized as a technically practical way of judging faulty lines. Thus a FLS scheme using a transient zero-sequence DC component energy integral is put forward, which highlights the difference of the DC components in the faulty line and the sound line. A series of simulation test results indicate that the proposed scheme shows favorable performance under various SPG fault conditions, and should be helpful to improve the success rate of FLS significantly for RGDN in the future.

Suggested Citation

  • Wenquan Shao & Jie Bai & Yuan Cheng & Zhihua Zhang & Ning Li, 2019. "Research on a Faulty Line Selection Method Based on the Zero-Sequence Disturbance Power of Resonant Grounded Distribution Networks," Energies, MDPI, vol. 12(5), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:5:p:846-:d:210884
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    Citations

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    Cited by:

    1. Yu He & Xinhui Zhang & Wenhao Wu & Jun Zhang & Wenyuan Bai & Aiyu Guo & Yu Chen, 2022. "Faulty Line Selection Method Based on Comprehensive Dynamic Time Warping Distance in a Flexible Grounding System," Energies, MDPI, vol. 15(2), pages 1-16, January.
    2. Bartosz Olejnik & Beata Zięba, 2022. "Improving the Efficiency of Earth Fault Detection by Fault Current Passage Indicators in Medium-Voltage Compensated Overhead Networks," Energies, MDPI, vol. 15(23), pages 1-19, November.
    3. Yih-Der Lee & Jheng-Lun Jiang & Yuan-Hsiang Ho & Wei-Chen Lin & Hsin-Ching Chih & Wei-Tzer Huang, 2020. "Neutral Current Reduction in Three-Phase Four-Wire Distribution Feeders by Optimal Phase Arrangement Based on a Full-Scale Net Load Model Derived from the FTU Data," Energies, MDPI, vol. 13(7), pages 1-20, April.
    4. Kewen Wei & Jing Zhang & Yu He & Gang Yao & Yikun Zhang, 2020. "Faulty Feeder Detection Method Based on VMD–FFT and Pearson Correlation Coefficient of Non-Power Frequency Component in Resonant Grounded Systems," Energies, MDPI, vol. 13(18), pages 1-19, September.

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