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author:

郭谋发 (郭谋发.) [1] (Scholars:郭谋发) | 王鹏 (王鹏.) [2] | 杨耿杰 (杨耿杰.) [3] (Scholars:杨耿杰)

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Abstract:

谐振接地系统不同类型单相接地故障的暂态过程差异性较大,难有普适的暂态选线方法。分析谐振接地系统在三种典型故障条件下的暂态特征,将单相接地故障类型分为强接地故障、小角度接地故障和弱接地故障;定义频谱能量比例因子P、暂态因子T和Hilbert时频熵S等故障特征量,并采用支持向量机对故障进行分类。对不同类型的故障构造相应的选线判据,实现有针对性的接地选线。仿真结果表明,该选线方法能适应各种故障条件及影响因素,具有选线准确、裕度高等特点。

Keyword:

HHT SVM 接地选线 故障分类 故障暂态特征 谐振接地系统

Community:

  • [ 1 ] [郭谋发]福州大学
  • [ 2 ] [王鹏]福州大学
  • [ 3 ] [杨耿杰]福州大学

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Source :

电工电能新技术

ISSN: 1003-3076

CN: 11-2283/TM

Year: 2014

Issue: 9

Page: 68-73,80

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: -1

Chinese Cited Count:

30 Days PV: 4

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