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Subharmonic measurement using DFT and Wavelet-Packet Transform in an IEC extended framework

Abstract: This paper proposes two different methods for measurement of subharmonic components in voltage and current waveforms in power systems. The paper first proposes a definition of the subharmonic group compatible with the standard of the International Electrotechnical Commission IEC 61000-4-7, as a grouping of spectral bins lower than the fundamental frequency resulting from the application of Discrete Fourier Transform. Then it presents a new method based on the Wavelet-Packet Transform to compute the magnitude of this subharmonic group. The performance of the two methods are compared in different measurement conditions.

 Autoría: Diego R., Barros J.,

 Fuente: Measuremen, 2010, 43(10), 1603-1608

Editorial: Elsevier

 Año de publicación: 2010

Nº de páginas: 6

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.measurement.2010.09.012

ISSN: 0263-2241,1873-412X

 Proyecto español: DPI2006-15083-C02-01

Url de la publicación: https://doi.org/10.1016/j.measurement.2010.09.012