IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v10y2017i3p309-d92215.html
   My bibliography  Save this article

A Novel High-Frequency Voltage Standing-Wave Ratio-Based Grounding Electrode Line Fault Supervision in Ultra-High Voltage DC Transmission Systems

Author

Listed:
  • Yufei Teng

    (State Grid Sichuan Electric Power Research Institute, Chengdu 610072, China)

  • Xiaopeng Li

    (State Grid Sichuan Electric Power Research Institute, Chengdu 610072, China)

  • Qi Huang

    (School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China)

  • Yifei Wang

    (Department of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Shi Jing

    (School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China)

  • Zhenchao Jiang

    (State Grid Sichuan Electric Power Research Institute, Chengdu 610072, China)

  • Wei Zhen

    (State Grid Sichuan Electric Power Research Institute, Chengdu 610072, China)

Abstract

In order to improve the fault monitoring performance of grounding electrode lines in ultra-high voltage DC (UHVDC) transmission systems, a novel fault monitoring approach based on the high-frequency voltage standing-wave ratio (VSWR) is proposed in this paper. The VSWR is defined considering a lossless transmission line, and the characteristics of the VSWR under different conditions are analyzed. It is shown that the VSWR equals 1 when the terminal resistance completely matches the characteristic impedance of the line, and when a short circuit fault occurs on the grounding electrode line, the VSWR will be greater than 1. The VSWR will approach positive infinity under metallic earth fault conditions, whereas the VSWR in non-metallic earth faults will be smaller. Based on these analytical results, a fault supervision criterion is formulated. The effectiveness of the proposed VSWR-based fault supervision technique is verified with a typical UHVDC project established in Power Systems Computer Aided Design/Electromagnetic Transients including DC(PSCAD/EMTDC). Simulation results indicate that the proposed strategy can reliably identify the grounding electrode line fault and has strong anti-fault resistance capability.

Suggested Citation

  • Yufei Teng & Xiaopeng Li & Qi Huang & Yifei Wang & Shi Jing & Zhenchao Jiang & Wei Zhen, 2017. "A Novel High-Frequency Voltage Standing-Wave Ratio-Based Grounding Electrode Line Fault Supervision in Ultra-High Voltage DC Transmission Systems," Energies, MDPI, vol. 10(3), pages 1-17, March.
  • Handle: RePEc:gam:jeners:v:10:y:2017:i:3:p:309-:d:92215
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/10/3/309/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/10/3/309/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ngo Minh Khoa & Doan Duc Tung, 2018. "Locating Fault on Transmission Line with Static Var Compensator Based on Phasor Measurement Unit," Energies, MDPI, vol. 11(9), pages 1-14, September.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:10:y:2017:i:3:p:309-:d:92215. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.