A Fault Classification Method by RBF Neural Network with OLS Learning Procedure

This paper presents a new approach to identify fault types and phases. A fault classification method based on a radial basis function (RBF) neural network with an orthogonal-least-square (OLS) learning procedure was used to identify various patterns of associated voltages and currents. The RBF neural network was also compared with the back-propagation (BP) neural network in this paper. It is shown that the RBF approach can provide a fast and precise operation for various faults. The simulation results also show that the proposed approach can be used as an effective tool for high-speed relaying.