The GREAT project: Integer linear programming-based day-ahead optimal scheduling of a DC microgrid

Microgrids 1 are electrical subsystems which include small generation units, storage devices and loads, which can operate either in grid connected or islanding mode. This paper deals with a DC microgrid that will be realized in an Italian industrial facility of GETRA Group. In particular, in this paper an optimization model is formulated to solve the problem of the day-ahead optimal scheduling of the microgrid. The model aims to optimize storage devices and controllable loads operation minimizing the daily costs of imported energy from AC grid and satisfying operational constraints such as production process constraints. The optimization problem is formulated using the Integer Linear Programming (ILP) theory. Case studies are also investigated in order to show the feasibility and the effectiveness of the proposed approach.