Classification of voltage sags base on k-NN in the principal component space

Authors

  • J. Meléndez Institut d’Informàtica i Aplicacions eXiT., Universitat de Girona Author
  • X. Berjaga Institut d’Informàtica i Aplicacions eXiT., Universitat de Girona Author
  • S. Herraiz Institut d’Informàtica i Aplicacions eXiT., Universitat de Girona Author
  • J. Sánchez Power Quality Department of Endesa Distribución, Barcelona Author
  • M. Castro Power Quality Department of Endesa Distribución, Barcelona Author

DOI:

https://doi.org/10.24084/repqj06.417

Keywords:

Fault location, voltage sag (dip), pattern classification, Power quality monitoring

Abstract

A new method for the classification of sags is proposed. The goal is to deduce the origin of sags (upstream or downstream of the transformer) registered in distribution substations. The method is based on the existence of a case base of previous registers which origin is well known. This case base is used to infer the origin of new sags based on the retrieval of similar sags using a distance criterion. This distance computed in the principal component space is also used in the decision step to decide the origin of the new sag.

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Published

2024-01-15

Issue

Vol. 6 No. 1 (2008)

Section

Articles