IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i13p4920-d856382.html
   My bibliography  Save this article

Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement

Author

Listed:
  • Norikazu Fuse

    (Grid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, Japan)

  • Shosuke Morita

    (Grid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, Japan)

  • Satoru Miyazaki

    (Grid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, Japan)

  • Toshihiro Takahashi

    (Grid Innovation Res. Lab., Central Research Institute of Electric Power Industry, Yokosuka 240-0196, Japan)

  • Naohiro Hozumi

    (Dept. Electrical & Electronic Information Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan)

Abstract

Space charge measurement accuracy is crucial when assessing the suitability of cables for high-voltage direct current (DC) systems. This study assembled state-of-the-art analysis technologies, including time-domain deconvolution, to mark electric field estimation accuracy, which the present techniques achieve. The pulse electroacoustic method was applied to a 66 kV-class extruded cable, and waveforms were obtained and analyzed to reproduce the electric field distribution. The DC voltage was set to be sufficiently low so that the analysis results can be compared with Laplace’s equation. The statistical analysis of 81 waveforms under a DC voltage of 30 kV showed that the estimation accuracy was −0.3% ± 19.9% with a 95.4% confidence interval, even with the deconvolution parameter optimized. The estimated accuracy using the “reference” waveform is applied to waveforms at higher voltages since similar estimation accuracies were confirmed for waveforms obtained under a DC voltage of 45 kV.

Suggested Citation

  • Norikazu Fuse & Shosuke Morita & Satoru Miyazaki & Toshihiro Takahashi & Naohiro Hozumi, 2022. "Estimation Accuracy of the Electric Field in Cable Insulation Based on Space Charge Measurement," Energies, MDPI, vol. 15(13), pages 1-12, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:13:p:4920-:d:856382
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/13/4920/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/13/4920/
    Download Restriction: no
    ---><---

    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:15:y:2022:i:13:p:4920-:d:856382. 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.