Design and implementation of flexible Numerical Overcurrent Relay on FPGA

Abstract

This paper presents the contemporary design and implementation of an intelligent revelation in the field of the over-current relay to meet the challenges of the modern grid. The unique three-neuron single layered architecture of Artificial Neural Network (ANN) provides flexibility by exploiting its universal function approximation capabilities. The Unique Selling Proposition (USP) of the present development is the simple design of ANN, suitable for low-end, low-cost Field Programmable Gate Array (FPGA) implementation. The nano-scaled internal processing time for three-phase design, with the provision of remotely controlled adaptive relay settings, would definitely an innovative solution for grid connection of renewable energy sources. The proposed design of the universal over-current relay, confirmed by the real-time testing, is a true fusion of electrical power, communication and information technology to meet the global trend of the electrical power industries.