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

Yuxing Wang, Jie Pan

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    © 2015 IEEE. 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.
    Original languageEnglish
    Pages (from-to)2061-2063
    JournalIEEE Transactions on Power Delivery
    Volume30
    Issue number4
    DOIs
    Publication statusPublished - 2015

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    Modal analysis
    Power transformers
    Failure modes

    Cite this

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    title = "Applications of Operational Modal Analysis to a Single-Phase Distribution Transformer",
    abstract = "{\circledC} 2015 IEEE. 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.",
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    Applications of Operational Modal Analysis to a Single-Phase Distribution Transformer. / Wang, Yuxing; Pan, Jie.

    In: IEEE Transactions on Power Delivery, Vol. 30, No. 4, 2015, p. 2061-2063.

    Research output: Contribution to journalArticle

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    T1 - Applications of Operational Modal Analysis to a Single-Phase Distribution Transformer

    AU - Wang, Yuxing

    AU - Pan, Jie

    PY - 2015

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    N2 - © 2015 IEEE. 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.

    AB - © 2015 IEEE. 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.

    U2 - 10.1109/TPWRD.2015.2412696

    DO - 10.1109/TPWRD.2015.2412696

    M3 - Article

    VL - 30

    SP - 2061

    EP - 2063

    JO - IEEE Transactions on Power Delivery

    JF - IEEE Transactions on Power Delivery

    SN - 0885-8977

    IS - 4

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