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author:

张小钒 (张小钒.) [1] | 兰生 (兰生.) [2] (Scholars:兰生)

Indexed by:

CQVIP PKU

Abstract:

为了提高变压器差动保护识别励磁涌流与内部故障电流的能力,提出一种基于拟合波形相关性的变压器励磁涌流识别新方法.首先利用正弦拟合法拟合差动电流波形,然后通过相关性分析原理,计算出差动电流原采样信号及其拟合曲线的相关系数,以此来识别励磁涌流与内部故障电流.仿真结果表明:该方法具有原理清晰、识别迅速、区分度高、抗干扰能力强,且易于在微机中实现等优点.

Keyword:

励磁涌流 变压器 差动保护 拟合波形 相关性

Community:

  • [ 1 ] [张小钒]福州大学
  • [ 2 ] [兰生]福州大学

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Source :

电测与仪表

ISSN: 1001-1390

CN: 23-1202/TH

Year: 2017

Issue: 1

Volume: 54

Page: 61-66

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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