A single monitor method for voltage sag source location using hilbert huang transform

Wong Ling Ai, Hussain Shareef

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    This study introduces a method for voltage sag source location based on Hilbert Huang transformed monitored current signal. Unlike the traditional method, the proposed method first transforms the recorded current during the sag event to obtain frequency-time plot (Hilbert spectra) and IMF plot before the location of voltage sag source is determined. Then based on the change in frequency and IMF the relative location of voltage sag source is obtained. The effectiveness of the proposed method has been verified through simulation on 20 bus system and by comparing with an existing S-Transform based method. The results show that the presented method can determine the location of voltage sag source correctly.

    Original languageEnglish
    Pages (from-to)192-202
    Number of pages11
    JournalResearch Journal of Applied Sciences, Engineering and Technology
    Volume5
    Issue number1
    Publication statusPublished - 2013

    Fingerprint

    Electric potential
    Mathematical transformations

    Keywords

    • Hilbert huang transform
    • Power quality
    • Signal processing
    • Voltage sags

    ASJC Scopus subject areas

    • Engineering(all)
    • Computer Science(all)

    Cite this

    A single monitor method for voltage sag source location using hilbert huang transform. / Ai, Wong Ling; Shareef, Hussain.

    In: Research Journal of Applied Sciences, Engineering and Technology, Vol. 5, No. 1, 2013, p. 192-202.

    Research output: Contribution to journalArticle

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    AB - This study introduces a method for voltage sag source location based on Hilbert Huang transformed monitored current signal. Unlike the traditional method, the proposed method first transforms the recorded current during the sag event to obtain frequency-time plot (Hilbert spectra) and IMF plot before the location of voltage sag source is determined. Then based on the change in frequency and IMF the relative location of voltage sag source is obtained. The effectiveness of the proposed method has been verified through simulation on 20 bus system and by comparing with an existing S-Transform based method. The results show that the presented method can determine the location of voltage sag source correctly.

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