Islanding Detection Scheme Using Potential Energy Function Based Criterion

Owning to the extensive enhancement of renewable energy resources in distribution grids, employment such sources has also introduced various issues, as islanding problem. In this paper, an effective method is proposed for detection micro-grids. The employs concept potential function drive index. Based on swing and equations, criterion derived based rate change function. index (IDI) takes into account frequency changes (ROCOF) DG. superiority manifested condition where generation distributed balance with loading consumption. performance been evaluated considering conditions difficult detect or might be mistaken other phenomena given by loads within Non-Detection Zone (NDZ) region, different fault types, power factors. evaluation carried out through simulations and, furthermore, compared state-of-the-art algorithms.