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Influence of Stray Current on Distance Protection in Rail Transit
编号：64 访问权限：仅限参会人 更新：2023-11-20 13:45:38 浏览：522次 口头报告

报告开始：2023年12月09日 14:30（Asia/Shanghai）

报告时间：15min

所在会场：[S5] Traction power supply technology and application [S5] Traction power supply technology and application

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摘要
Nowadays, urban rail transit is developing continuously, which is closely related to the power grid. The stray current generated during the operation of rail transit will invade the power system through the neutral point of the transformer, resulting in a series of effects. Dc magnetic bias caused by stray current will affect the transmission characteristics of current transformer. In this paper, the working principle of current transformer and its transmission characteristics under DC magnetic bias condition are studied. The influence of stray current on the transmission characteristics of current transformer is analyzed, and then the influence of stray current on directional circular impedance relay and power frequency variation distance protection is studied, which provides a basis for the prevention and control of stray current in rail transit.
关键词
Stray current of rail transit,Current transformer,DC bias,Distance protection
报告人
Ruxue Zhao
Student Shandong University

稿件作者
Ruxue Zhao Shandong University
Guoxin Zhang Zibo Power Supply Bureau Co., Ltd.
Hongmei Gao Binzhou Power Supply Bureau Co., Ltd.
Yizhen Sui Shandong University
Hongbin Zhang Shandong University
Hongshun Liu Shandong University
Qingquan Li Shandong University
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重要日期

  • 会议日期

    12月08日

    2023

    至

    12月10日

    2023

  • 11月01日 2023

    初稿截稿日期

  • 12月10日 2023

    注册截止日期

主办单位
IEEE IAS
承办单位
Southwest Jiaotong University (SWJTU)
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