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Browse Journals & Magazines > Power Delivery, IEEE Transact ...> Volume:23 Issue:1 Help

Transformer Differential Protection Using Principal Component Analysis

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4 Author(s)
Vazquez, E. ; Univ. Autonoma de Nuevo Leon, Monterrey ; Mijares, I.I. ; Chacon, O.L. ; Conde, A.

This paper describe a new algorithm for transformer differential protection, based on pattern recognition of the differential current obtained as the phasor sum of the current-transformer secondary currents. The algorithm uses principal component analysis to preprocess data from the power system in order to eliminate redundant information and enhance hidden pattern in differential current to discriminate between internal faults (transformer differential protection zone) from inrush and overexcitation conditions. The algorithm was proven using PSCAD/EMTDC simulations in a three-phase power system considering critical fault cases. The results show the feasibility to implement this algorithm for transformer differential protection.

Published in:
Power Delivery, IEEE Transactions on  (Volume:23 ,  Issue: 1 )

Date of Publication: Jan. 2008

Page(s):
67 - 72
ISSN :
0885-8977
INSPEC Accession Number:
9756464
Digital Object Identifier :
10.1109/TPWRD.2007.911149
Product Type:
Journals & Magazines
Date of Current Version :
26 December 2007
Issue Date :
Jan. 2008
Sponsored by :
IEEE Power & Energy Society

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