Micro grid is a localized grouping of electricity sources and loads that normally operate connected to and synchronous with the traditional centralized electrical grid (macrogrid), but can disconnect and function autonomously as physical and/or economic conditions dictate. By this way, it paves a way to effectively integrate various sources of distributed generation (DG), especially Renewable Energy Sources (RES). They are mainly created in rural areas or the areas in which there is no electrical connectivity.