AN ANN based approach to improve the distance relaying algorithm

This paper presents an artificial neural network (ANN) based approach to improve the performance of distance relaying algorithm. The proposed distance relay uses amplitudes of voltages and currents signals to learn the hidden relationship existing in the input patterns. Simulation studies are preformed and the influence of changing system parameters such as fault resistance and source impedance is studied. Details of the design procedure and the results of performance studies with the proposed relay are given in the paper. Various simulation studies are performed and capabilities of the extended algorithm are investigated. Performance studies results show that the proposed algorithm is very accurate. Some of the simulation results are presented in the paper