Article

Higher-order characterization of power quality transients and their classification using competitive layers

  • Juan José González De La Rosa /
  • Antonio Moreno Muñoz /
  • Antolino Gallego /
  • Rosa Piotrkowski /
  • Enrique Castro
Journal ar
Measurement: Journal of the International Measurement Confederation
  • Volumen: 42
  • Número: 3
  • Fecha: 01 April 2009
  • Páginas: 478-484
  • ISSN: 02632241
  • Source Type: Journal
  • DOI: 10.1016/j.measurement.2008.09.006
  • Document Type: Article
This paper deals with power-quality (PQ) event detection, classification and characterization using higher-order sliding cumulants (which are calculated over high-pass filtered signals to avoid the low-frequency 50-Hz sinusoid), whose maxima and minima are the coordinates of two-dimensional feature vectors. The classification strategy is based in competitive layers. We focus on the problem of differentiating two types of transients: short-duration (impulsive transients) and long-duration (oscillatory transients). The results show that the measured vectors are classified into clearly differentiated clusters in the feature space. The experience aims to set the foundations of an automatic procedure for PQ event detection. © 2008 Elsevier Ltd. All rights reserved.

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