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Limits and Usability of Fast Fourier, Discrete Waveletand Wavelet Packet Transforms Applied at Signalsfrom a Primary Winding of a Locomotive Transformer

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dc.contributor.author NICOLAE, Ileana-Diana
dc.contributor.author MARINESCU, Radu-Florin
dc.contributor.author NICOLAE, Petre-Marian
dc.contributor.author CRISTINA, Maria Diana
dc.date.accessioned 2019-11-25T13:27:06Z
dc.date.available 2019-11-25T13:27:06Z
dc.date.issued 2017
dc.identifier.citation NICOLAE, Ileana-Diana, MARINESCU, Radu-Florin, NICOLAE, Petre-Marian et al. Limits and Usability of Fast Fourier, Discrete Waveletand Wavelet Packet Transforms Applied at Signalsfrom a Primary Winding of a Locomotive Transformer [Resursă electronică]. In: SIELMEN 2017: Proceedings of the 11-th international conference on electromechanical and power systems, 11-13 octombrie, 2017. Chișinău, 2017, pp. 487-492. ISBN 978-1-5386-1846-2. en_US
dc.identifier.isbn 978-1-5386-1846-2
dc.identifier.uri http://repository.utm.md/handle/5014/7177
dc.description Abstract & References en_US
dc.description.abstract Single phase currents and voltages were acquired from the primary winding of a locomotive transformer. Four operating regimes were considered (acceleration, running at constant speed, normal and respectively regenerative braking). 6 data sets consisting of 3 consecutive periods were considered as representative for this study and analyzed: one per each of the first 3 mentioned operating regimes and 3 for the regenerative braking. Fast Fourier Transform) and Wavelet Packet Transform were used to evaluate the harmonic spectra, Discrete Wavelet Transform was used to plot the instantaneous variations over frequency ranges of the distortions and all methods were used to evaluate the 3 major root mean square values (for fundamental frequency, for distorting residue and total). Total harmonic distortions were also evaluated. The results yielded by different methods were compared. A good convergence of methods was noticed. Explanations for the small differences are proposed. en_US
dc.language.iso en en_US
dc.publisher Institute of Electrical and Electronics Engineers en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject power engineering computing en_US
dc.subject power quality en_US
dc.subject Wavelet transforms en_US
dc.subject Fast Fourier Transform en_US
dc.subject transforms en_US
dc.title Limits and Usability of Fast Fourier, Discrete Waveletand Wavelet Packet Transforms Applied at Signalsfrom a Primary Winding of a Locomotive Transformer en_US
dc.type Article en_US


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  • 2017
    11-13 Oct. 2017

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Attribution-NonCommercial-NoDerivs 3.0 United States Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States

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