ОПТИМАЛНА ИНТЕГРАЦИЯ НА РАЗПРЕДЕЛЕНИ ЗАПАСЯВАЩИ ЕНЕРГИЯТА УСТРОЙСТВА И МАЛКИ ГЕНЕРАТОРИ В АВТОНОМНА СИСТЕМА С ВЪЗОБНОВЯЕМИ ЕНЕРГИЙНИ ИЗТОЧНИЦИ

The purpose is to study how best to integrate distributed energy storage and small thermal generators in a Microgrid mainly powered by renewable sources. Optimal placing and capacity sharing of distributed energy storage helps to reduce Joule losses and voltage drops. Small generators give same advantages at optimal location. Optimal capacity sharing of Distributed energy storage is based on Droop mode control of specific inverter. Storage units are guided to behave homogenously to have the same evolution of State of Charge, so the same life cycle. By minimizing the Joule losses, the decentralization of storage allows to reduce the conductor section or the size of renewable power sources at design phase. For existed grid, it could delay distribution grid's upgrade investment. It should be therefore financially interesting.