Open Access

Classification of Single and Multiple Disturbances in Electric Signals

  • Moisés Vidal Ribeiro1Email author and
  • José Luiz Rezende Pereira1
EURASIP Journal on Advances in Signal Processing20072007:056918

https://doi.org/10.1155/2007/56918

Received: 19 April 2006

Accepted: 16 May 2007

Published: 29 July 2007

Abstract

This paper discusses and presents a different perspective for classifying single and multiple disturbances in electric signals, such as voltage and current ones. Basically, the principle of divide to conquer is applied to decompose the electric signals into what we call primitive signals or components from which primitive patterns can be independently recognized. A technique based on such concept is introduced to demonstrate the effectiveness of such idea. This technique decomposes the electric signals into three main primitive components. In each primitive component, few high-order-statistics- (HOS-) based features are extracted. Then, Bayes' theory-based techniques are applied to verify the ocurrence or not of single or multiple disturbances in the electric signals. The performance analysis carried out on a large number of data indicates that the proposed technique outperforms the performance attained by the technique introduced by He and Starzyk. Additionally, the numerical results verify that the proposed technique is capable of offering interesting results when it is applied to classify several sets of disturbances if one cycle of the main frequency is considered, at least.

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Authors’ Affiliations

(1)
Department of Electrical Energy, Federal University of Juiz de Fora

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Copyright

© M. V. Ribeiro and J. L. R. Pereira 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.