1. Fault Classification Scheme Based on the Adaptive Resonance Theory Neural Network for Protection of Transmission Lines.
- Author
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Upendar, J., Gupta, C. P., and Singh, G. K.
- Subjects
- *
WAVELETS (Mathematics) , *CLASSIFICATION , *ELECTRIC lines , *RESONANCE , *ARTIFICIAL neural networks - Abstract
This article presents a new approach to classify various types of power system faults using wavelet transforms and the adaptive resonance theory. The key idea underlying the approach is to decompose a given disturbance signal into other signals, which represents a smoothed and detailed version of the original signal. The proposed technique consists of a preprocessing unit based on discrete wavelet transform in combination with adaptive resonance theory. Through wavelet analysis, faults are decomposed into a series of wavelet components, each of which is a time-domain signal that covers a specific octave frequency band. The parameters selected for fault classification are the detailed coefficients of all phase current signals that are collected only at the sending end of a transmission line. The information is then fed into adaptive resonance theory for classifying the faults. The study is performed on a sample power system network. Extensive simulation studies carried out using MATLAB (http://www.mathworks.com) shows that the proposed algorithm not only provides an accepted degree of accuracy in fault classification under different fault conditions, but it is also reliable, fast, and computationally efficient tool. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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