Applications of Operational Modal Analysis to a Single-Phase Distribution Transformer

被引：19

作者：

Wang, Y. ^{[1
]}

Pan, J. ^{[1
]}

机构：

[1] Univ Western Australia, Sch Mech & Chem Engn, Perth, WA 6009, Australia

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2015年 / 30卷 / 04期

关键词：

Condition monitoring; modal parameter; operational modal analysis; transformer vibration;

D O I：

10.1109/TPWRD.2015.2412696

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：

Previous studies have shown that a transformer's modal characteristics can be identified by its internal electromagnetic excitations and are related to structural damage. These may be useful for diagnosing the causes of failure modes in power transformers during normal operation. Operational modal analysis (OMA) appears to be a suitable tool for this purpose. In this letter, the feasibility of OMA in identifying transformer modal parameters is discussed with a special focus on the mechanisms of natural excitation. OMA is also applied to a 10-kVA transformer with and without artificially designed structural damage. Good correlation is obtained between the results of OMA and those of experimental modal analysis.

引用

页码：2061 / 2063

页数：3

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