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author:

刘炳南 (刘炳南.) [1] | 郭谋发 (郭谋发.) [2] (Scholars:郭谋发) | 陈永往 (陈永往.) [3]

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CQVIP

Abstract:

配电网受实际因素的影响,运行时接触高阻抗表面会发生高阻接地故障.发生故障时,故障点电阻较大,电压、电流突变量不明显,常规保护难以准确动作.高阻接地故障常伴随着电弧熄灭与重燃,若该故障长期存在,则将导致电气设备永久性损坏,甚至发生人身触电安全事故.本文通过对母线三相电压和零序电压进行HHT带通滤波构造时频矩阵,对各频带求取标准差作为特征向量,最后利用K最邻近算法进行故障辨识.

Keyword:

HHT带通滤波 K最邻近算法 标准差 配电网 高阻接地故障

Community:

  • [ 1 ] [刘炳南]福州大学
  • [ 2 ] [郭谋发]福州大学
  • [ 3 ] [陈永往]国网晋江供电公司,福建泉州,362200

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Source :

电气技术

ISSN: 1673-3800

CN: 11-5255/TM

Year: 2019

Issue: 1

Volume: 20

Page: 18-23

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: 1

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