A Fault Location Method Using Air-Gap Fluxes of Synchronous Generator

被引：2

作者：

Matsuki, Junya ^{[1
]}

Hayashi, Yasuhiro ^{[2
]}

Nakano, Toshikazu

Funasaki, Yoichi

机构：

[1] Univ Fukui, Dept Elect Engn, Fukui, Japan

[2] Univ Fukui, Dept Elect & Elect Engn, Fukui, Japan

来源：

ELECTRICAL ENGINEERING IN JAPAN | 2009年 / 167卷 / 03期

关键词：

transmission line fault; fault location; synchronous generator; air-gap flux; wavelet analysis;

D O I：

10.1002/eej.20707

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper deals with an experimental investigation of a novel fault location method using air-gap flux distributions of a synchronous generator connected to a power system. Air-gap fluxes are the sum of field fluxes and armature reaction fluxes. Changes in armature current and In field current at a fault contribute directly to the armature reaction fluxes and field fluxes, then resultant air-gap fluxes. Therefore, air-gap fluxes can be utilized to locate a fault. Wavelet analysis is applied to the induced voltages of search coils, which are wound around a stator tooth top for measurement of the air-gap flux. It is shown that the fault type and location can be estimated based oil the change in the search coil voltages measured during the fault. (C) 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 167(3): 20-27, 2009; Published online in Wiley InterScicrice (www. interscience.wiley.com). DOI 10.1002/eej.20707

引用

页码：20 / 27

页数：8

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