Multi-source power generation system in semi-isolated and safety grid configuration for buildings

Due to technical constraints of major incidents related to connecting distributed green sources with the public grid, we propose, in urban areas, a semi-isolated and safety system for self-feeding of buildings equipped with renewable electricity. With an aim of elimination of multiple energy conversions, a direct current (DC) network distribution is considered. The semi-isolated and safety DC network is studied using a multi-source system (photovoltaic panels, storage, and public grid) and numerical simulation results are given. The results focus on the redefinition of the electrical network for buildings equipped with renewable sources, with the proposal of a semi-isolated grid. These results confirm the relevance of such network in urban areas, and can map out perspectives on integrated and optimized energy management of the building.