Dynamical Simulation of Laboratory MicroGrid

A micro-grid can increase the reliability of energy supplies by disconnecting from the grid in the case of network faults or reduced power quality. The techniques that have been investigated to control micro-grids in both modes are summarized as well as those proposed to maintain stability during the transitions from one mode to the other. This paper first introduces the micro-grid planning structure in Shandong Electric Power Research Institute (SEPRI) and discusses the various feasible control approaches used and presents for micro-grid. Then, based on modeling different types of distributed generations and energy storage equipment, the SEPRI Micro-Grid model was simulated with several operating modes under peer to peer control strategy. The importance of an energy storage to assist stability during transition between the operating modes is emphasized.