Analysis of active power sharing and synchronization in MuitiDG micro grid

The increasing demand of efficiency, cost effectiveness, environmental aspects has driven the development of micro grid technology. The controlling of the micro grid in standalone mode and grid connected mode is the major concern. The active power sharing after grid disconnection and resynchronization with the utility grid are the challenging task in micro grid. In this paper, proper relay coordination are proposed for islanding and power sharing of multi distribution generations (DGs) unit in single phase system. Also discussed the synchronization of DGs with utility grid using Static Transfer Switch (STS) called as micro switch. Various conditions consider for islanding, active power sharing of multi DGs and synchronization between grid with two parallel connected DG's. The simulation results reported in this paper are based on MATLAB software. Result shows that Static transfer switch works effectively and synchronized the system in proper way.