中压线路树木接地故障放电特性试验
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TM852

基金项目:

国家自然科学基金区域创新发展联合基金重点支持项目(U19A2080)


Discharge characteristic test of tree grounding fault of medium voltage line
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    近年森林火灾频发导致重大人员伤亡事故与国民经济重大损失,影响电网的运行安全。发生森林火灾的原因除了雷电、人为等因素外,电力线路树木接地故障引发与否也是事故原因调查时争议很大的问题。以中压线路为主要研究对象,搭建火焰和树线放电试验平台,研究树木临近线路放电、树木因外部因素搭靠线路上放电和线路下方出现火焰时线路放电的故障特征,提出山火引发线路故障与线路树木故障的辨识依据;提出树木接地故障理论模型,预测树木接地时泄漏电流等电气参量幅值,为制定防范电网树线故障引发山火事故措施提供思路。

    Abstract:

    The frequent occurrence of forest fires in recent years has led to major casualties and significant losses of the national economy, affecting the operational safety of the power grid. Besides lightning, human and other factors, whether the power line tree failure triggered is also a highly controversial issue in the investigation of the cause of the occurrence of forest fires. This paper takes the medium-voltage line as the main research object, a flame and tree-line discharge test platform is built. The fault characteristics of tree discharge near the line, tree discharge due to external factors hitching on the line and line discharge when the flame appears below are studied, and the identification basis of line fault causes by mountain fire or tree is proposed. Finally a theoretical model of tree grounding fault, which can predict the amplitude of electrical parameters such as leakage current is proposed. This study can provide ideas to the prevention of tree line faults in the power grid caused by mountain fire.

    参考文献
    相似文献
    引证文献
引用本文

杨淳岚,陈天翔,杨博闻,等.中压线路树木接地故障放电特性试验[J].电力科学与技术学报,2022,37(4):38-44.
Yang Chunlan, Chen Tianxiang, Yang Bowen, et al. Discharge characteristic test of tree grounding fault of medium voltage line[J]. Journal of Electric Power Science and Technology,2022,37(4):38-44.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2022-09-23
  • 出版日期: