IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i10p2474-d358029.html
   My bibliography  Save this article

Bulk FDTD Simulation of Distributed Corona Effects and Overvoltage Profiles for HSIL Transmission Line Design

Author

Listed:
  • Jon T. Leman

    (POWER Engineers, Inc., 3940 Glenbrook Drive, P.O. Box 1066, Hailey, ID 83333, USA)

  • Robert G. Olsen

    (School of Electrical Engineering & Computer Science, Washington State University, P.O. Box 642752, Pullman, WA 99164, USA)

Abstract

Power system load growth and transmission corridor constraints are driving industry activity in the area of high surge impedance loading (HSIL). Examples include compact structure design and uprating existing transmission lines. Recent research relating electric field uniformity to transmission line capacity and critical flashover voltage underscored the need for better overvoltage data to quantify insulation margins for HSIL design. To that end, this work extends the finite difference time domain (FDTD) method with distributed corona losses to transmission lines with bundled conductors. The model was adapted for practical use in high-volume statistical transient simulation and applied to an example 500 kV line. Transients included line energization and trapped charge reclosing. Overvoltage profiles and statistical distributions were generated from 9500 simulations obtained by random breaker close timing and variation in line length and altitude. Distributed corona losses reduced 98th percentile line-to-ground switching overvoltages by 4%–14% of nominal. The estimated line-to-ground switching surge flashover probability was 54%–80% lower with corona loss. Corona had less impact on line-to-line overvoltages, but the effects were still notable. Results highlight the importance of considering detailed overvoltage profiles and accounting for corona loss attenuation when seeking to carefully quantify insulation design margins.

Suggested Citation

  • Jon T. Leman & Robert G. Olsen, 2020. "Bulk FDTD Simulation of Distributed Corona Effects and Overvoltage Profiles for HSIL Transmission Line Design," Energies, MDPI, vol. 13(10), pages 1-22, May.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:10:p:2474-:d:358029
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/10/2474/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/13/10/2474/
    Download Restriction: no
    ---><---

    Citations

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


    Cited by:

    1. Erika Stracqualursi & Rodolfo Araneo & Salvatore Celozzi, 2021. "The Corona Phenomenon in Overhead Lines: Critical Overview of Most Common and Reliable Available Models," Energies, MDPI, vol. 14(20), pages 1-33, October.
    2. Tadao Ohtani & Yasushi Kanai & Nikolaos V. Kantartzis, 2022. "A Nonstandard Path Integral Model for Curved Surface Analysis," Energies, MDPI, vol. 15(12), pages 1-21, June.

    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:13:y:2020:i:10:p:2474-:d:358029. 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.