Application of probabilistic neural network for differential relaying of power transformer
Application of probabilistic neural network for differential relaying of power transformer
- Author(s): M. Tripathy ; R.P. Maheshwari ; H.K. Verma
- DOI: 10.1049/iet-gtd:20050273
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- Author(s): M. Tripathy 1 ; R.P. Maheshwari 1 ; H.K. Verma 1
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View affiliations
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Affiliations:
1: Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, India
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Affiliations:
1: Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, India
- Source:
Volume 1, Issue 2,
March 2007,
p.
218 – 222
DOI: 10.1049/iet-gtd:20050273 , Print ISSN 1751-8687, Online ISSN 1751-8695
Investigations towards the applicability of probabilistic neural networks (PNNs) as core classifiers to discriminate between magnetising inrush and internal fault of power transformer are made. An algorithm has been developed around the theme of conventional differential protection of transformer. It makes use of the ratio of the voltage-to-frequency and the amplitude of differential current for the detection of the operating condition of the transformer. The PNN has a significant advantage in terms of a much faster learning capability because it is constructed with a single pass of exemplar pattern set and without any iteration for weight adaptation. For the evaluation of the developed algorithm, transformer modelling and simulation of fault are carried out in power system computer-aided designing PSCAD/EMTDC. The operating condition detection algorithm is implemented in MATLAB.
Inspec keywords: learning (artificial intelligence); power transformer protection; fault simulation; neural nets; relay protection; power engineering computing
Other keywords:
Subjects: Protection apparatus; Neural computing techniques; Power engineering computing; Transformers and reactors
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