IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v11y2018i5p1092-d143779.html
   My bibliography  Save this article

Large Swing Behavior of Overhead Transmission Lines under Rain-Load Conditions

Author

Listed:
  • Chao Zhou

    (School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
    Key Laboratory of Condition Monitoring and Control for Power Plant Equipment Ministry of Education, North China Electric Power University, Beijing 102206, China)

  • Jiaqi Yin

    (School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
    Key Laboratory of Condition Monitoring and Control for Power Plant Equipment Ministry of Education, North China Electric Power University, Beijing 102206, China)

  • Yibing Liu

    (School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
    Key Laboratory of Condition Monitoring and Control for Power Plant Equipment Ministry of Education, North China Electric Power University, Beijing 102206, China)

Abstract

In recent years, flashover accidents caused by large swings of overhead conductors that frequently occurred under rain-wind condition, greatly jeopardized the normal operation of power transmission systems. However, the large swing mechanism of overhead conductor under the simultaneous occurrence of rain and wind is not clear yet. Thus, a unified model is proposed with derived stability criterion to analyze the large swing of the overhead conductor. The analytical model is solved by finite element method with the aerodynamic coefficients obtained from simulated rain-wind tests, taking into account the effect of wind velocities, upper rivulet motion, rainfall rates, and rain loads on the large swings of overhead transmission lines. The results show that the proposed model can capture main features of the large swing of overhead conductor, this swing being probably due to the upper rivulet’s motion, by which negative aerodynamic damping occurs at a certain range of wind velocity (10 m/s). Furthermore, the peak swing amplitude of the overhead conductors under rain-wind condition is larger than that under wind only, and the rain loads cannot be neglected.

Suggested Citation

  • Chao Zhou & Jiaqi Yin & Yibing Liu, 2018. "Large Swing Behavior of Overhead Transmission Lines under Rain-Load Conditions," Energies, MDPI, vol. 11(5), pages 1-15, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1092-:d:143779
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/11/5/1092/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/11/5/1092/
    Download Restriction: no
    ---><---

    Citations

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


    Cited by:

    1. Jiazheng Lu & Pengkang Xie & Jianping Hu & Zhenglong Jiang & Zhen Fang, 2018. "AC Flashover Performance of 10 kV Rod-Plane Air-Gapped Arresters under Rain Conditions," Energies, MDPI, vol. 11(6), pages 1-11, June.
    2. Liqiang An & Yongyu Guan & Zhijian Zhu & Ronglun Zhang, 2019. "Research on Windage Yaw Flashovers of Transmission Lines under Wind and Rain Conditions," Energies, MDPI, vol. 12(19), pages 1-18, 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:11:y:2018:i:5:p:1092-:d:143779. 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.