IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v18y2025i8p2098-d1637518.html
   My bibliography  Save this article

Research on Measures to Limit Short-Circuit Current by Changing the Structure of the Power Grid

Author

Listed:
  • Shuqin Sun

    (College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, China)

  • Guanghao Zhou

    (College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, China)

  • Yunting Song

    (China Electric Power Research Institute, Beijing 100192, China)

  • Xiaojun Tang

    (China Electric Power Research Institute, Beijing 100192, China)

  • Yuguang Zhou

    (Dandong Jinshan Thermal Power Co., Ltd., Dandong 118000, China)

  • Zhenghai Yuan

    (College of Instrumentation and Electrical Engineering, Jilin University, Changchun 130061, China)

Abstract

This paper addresses the increasingly severe issue of excessive short-circuit currents brought about by the rapid development of large power grids. The working principles of structural changes in the grid as a means of limiting currents are studied, and an impedance matrix is constructed using the additional branch method to analyze the control effects of these limiting measures on short-circuit currents. To explore how to control the level of short-circuit currents in large power grids, this paper provides a detailed analysis of the working principles, advantages, and disadvantages of eight grid structural change measures, including electromagnetic ring network breaking, bus splitting, line interruption, and line coupling. The applicable conditions for each short-circuit-current-limiting measure are established, and specific engineering simulation cases are used to verify their effectiveness in limiting short-circuit currents. The results indicate that this research plays a significant role in controlling short-circuit currents in power systems, maintaining the safe and stable operation of power systems, and improving the structure of power system networks.

Suggested Citation

  • Shuqin Sun & Guanghao Zhou & Yunting Song & Xiaojun Tang & Yuguang Zhou & Zhenghai Yuan, 2025. "Research on Measures to Limit Short-Circuit Current by Changing the Structure of the Power Grid," Energies, MDPI, vol. 18(8), pages 1-28, April.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:8:p:2098-:d:1637518
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/18/8/2098/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/18/8/2098/
    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:18:y:2025:i:8:p:2098-:d:1637518. 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.