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author:

蔡智萍 (蔡智萍.) [1] | 郭谋发 (郭谋发.) [2] | 魏正峰 (魏正峰.) [3]

Indexed by:

PKU CSCD

Abstract:

现有剩余电流保护器多以总剩余电流有效值作为动作判据,阈值固定,且无法识别触电类型,因而提出基于自适应阈值和BP神经网络的低压配电网生命体触电识别方法。总剩余电流信号经Mallat算法消噪处理,由得到的低频分量构造出自适应阈值,用于确定触电发生时刻,提取能表征生命体特性的统计量特征,对BP神经网络进行训练,建立触电类型识别模型。物理仿真实验表明,该方法能够满足剩余电流保护器所要求的速动性和可靠性,触电类型识别准确率达99.93%,对于开发新一代剩余电流保护器具有参考价值。

Keyword:

BP神经网络 Mallat算法 低压配电网 生命体触电 触电类型识别

Community:

  • [ 1 ] 福州大学电气工程与自动化学院

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Source :

电网技术

Year: 2022

Issue: 04

Volume: 46

Page: 1614-1623

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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