Condition Assessment of Power OLTC by Vibration Analysis Using Wavelet Transform

被引：84

作者：

Rivas, Edwin ^{[1
]}

Burgos, Juan Carlos ^{[1
]}

Garcia-Prada, Juan Carlos ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Madrid 28911, Spain

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2009年 / 24卷 / 02期

关键词：

Hilbert transform vibration analysis; onload tap changer (OLTC); wavelet transform; LOAD TAP-CHANGERS;

D O I：

10.1109/TPWRD.2009.2014268

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

The suitable condition of an onload tap changer (OLTC) is essential for the operation of a power transformer. It is extremely desirable to have some indicators to assess the OLTC condition, especially if these indicators are capable of being used in an online monitoring system that does not affect the normal operation of the transformer. This paper describes a methodology by using envelope analysis based on the Hilbert transform and orthogonal decomposition of the wavelet to determine the main diagnostic parameters for power transformer OLTC condition assessment by means of vibration measurements during the tap changer operation.

引用

页码：687 / 694

页数：8

共 19 条

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[2]

BENGTSSON T, 1998, MONITORING TAP CHANG, P12

[3]

DAUBECHIES I, 1992, 10 LECT WAVELETS SOC, P259

[4]

de Boor C., PRACTICAL GUIDE SPLI