A new fault detection, classification and location scheme for transmission line Online publication date: Thu, 29-Jan-2015
by Bhavesh Bhalja, R.P. Maheshwari
International Journal of Power and Energy Conversion (IJPEC), Vol. 2, No. 4, 2011
Abstract: Using the powerful analysing and decomposing features of wavelet transform, a new fault detection scheme is presented. Further, the same technique has been extended for fault classification and accurate fault location from the relaying point to the fault using a radial basis function neural network (RBFNN) which provides a more efficient approach for training and computation. The relaying scheme depends on the three line voltages and currents of the transmission line at each end. One of the key points of this paper is preprocessing module of the measured signals to extract the most significant features from the signals. Extracting distinctive features (frequency components) from the line currents and voltages and feeding them to a RBFNNs result in an accurate and fast transmission relaying scheme. The proposed wavelet based RBFNN scheme provides encouraging results for detecting, classifying and precisely locating fault events independent of different fault and system conditions.
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