Intelligent Relay Based on Artificial Neural Networks ANN for Transmission Line

The detection of faults on transmission lines is an essential and important part of power system monitoring and control. Providing high-quality electric power requires an efficient, reliable, and intelligent protection, a system that can handle transmission line outages that result from a variety of random reasons. This system will allow a fast detection and gives an accurate fault location, thus isolating the faulted section and avoiding catastrophic damage to material and human assets.In this paper, the use of artificial neural network algorithm ANN is proposed, which can be implemented in a numerical relay, this approach has been noticed by many researchers in the field of power system protection. ANN is trained using the measurements of the three-phase currents and voltages. The feedforward neural network was used together with the backpropagation algorithm to detect, classify, and localize the fault. To validate the choice of the neural network, a detailed analysis was performed with a different number of hidden layers. Simulation results show that the present artificial neural network-based method performs satisfactorily in detecting, classifying, and locating faults on transmission lines. To test the proposed method, different fault scenarios were simulated