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author:

蔡晋 (蔡晋.) [1] | 林榛 (林榛.) [2] | 高伟 (高伟.) [3] (Scholars:高伟) | 郭谋发 (郭谋发.) [4] (Scholars:郭谋发)

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CQVIP

Abstract:

在中性点不接地系统中,单相接地故障与铁磁谐振时有发生,二者的外在表现特征非常相似,难以区分.本文分析了单相接地故障与铁磁谐振电压、电流特征,提出了利用HHT频率检测及信号注入相结合的识别方法.HHT频率检测法实现对分频和高频谐振故障的检测,利用H桥型逆变器注入电流信号实现对基频谐振故障的检测,避免了将铁磁谐振故障误判断为单相接地.仿真结果验证该方法能够有效识别谐振状态与单相接地故障.

Keyword:

HHT 中性点不接地系统 信号注入 单相接地故障 铁磁谐振

Community:

  • [ 1 ] [蔡晋]福州大学
  • [ 2 ] [林榛]国网福建长乐市供电有限公司
  • [ 3 ] [高伟]福州大学
  • [ 4 ] [郭谋发]福州大学

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Source :

电气技术

ISSN: 1673-3800

CN: 11-5255/TM

Year: 2015

Issue: 12

Page: 31-35,51

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 3

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