抄録
Micro-grids (MGs) have become an important research line because of their peculiar characteristics. They have two modes of operation: grid-connected mode and islanding mode. Actually, there are two kinds of islanding: planned (for maintenance), and unplanned (due to disturbances). The latter is the most critical because it must be detected as soon as possible to avoid damage in source and loads, also to activate all convenient control systems that allow continuing the energy production despite the disconnection. This paper presents a review on MGs focusing on the unplanned islanding.
