Smart Grid and Microgrid Cooperation in a Real Distribution Network under Emergency Conditions

The paper presents a feasibility study regarding the ability of an existing rural microgrid to supply an islanded portion of the MV distribution network. The microgrid is currently off-grid, but in the near future will be connected to the MV distribution grid. Based on load and generation measurements in a six-month period, a statistical analysis is carried out with the aim to check the ability of the microgrid to guarantee such a service whenever requested. Steady state simulations, also taking into account a proposed control strategy of the microgrid energy resources during islanding operation, show that for a significant share of cases the islanding operation is feasible