Optimal relay performance using advanced fault diagnostic techniques

Abstract

This paper describes application of Artificial Intelligence (AI) methods in the diagnostic operation of the protective relays in power system with a particular emphasis on neuro-fuzzy method, as a viable enhancement to the existing classical protection technique in use on the Nigeria’s national grid. The proposed method is simulated to showcase its advantages over the existing methods. It will not replace the latter but rather serves as a means of improving its reliability as a protection scheme. This work can also be applied to any other complex power system spread over a wide geographical area like Nigeria’s.