A Robust Operational Dispatch Model for Prosumer Dominated Microgrids Incorporating a Utility-Scale Battery

Due to its advantages over alternating current microgrids, direct current microgrids are becoming an attractive alternative. This growth of interest in direct current microgrids, coupled with the rise in prosumers makes a case for the study of direct current prosumer microgrids. Prosumers intermittently import/export power to/from the grid thereby complicating operational planning of prosumer grids. In this paper, a robust dispatch model, which uses a utility-scale battery to handle uncertainty in prosumer power import/export, while respecting prosumers' privacy, is developed. The model is tested using a six-bus direct current microgrid, by the interior point optimizer in Gekko package, in Python. Other analyses suggest that a microgrid that interconnects prosumers with dissimilar power import/export profiles tends to have lower voltage drops on buses and lesser power loss than one that interconnects prosumers with similar profiles.