Energy management unit, energy supply system and energy management process

摘要

One aspect relates to an energy management unit 10 for controlling and / or regulating an energy supply in an AC energy consumption network (300) with the aid of an energy store (40) depending on an energy demand state of the AC energy consumption network (300), wherein the AC energy consumption network (300) an inverter (13) is connected to a DC power generation network (100), comprising: - a DC / DC converter (22) for supplying an energy extracted from the energy store (40) to the DC power generation network (100); - an AC / DC converter (42) for storing an energy extracted from the AC power grid (300) in the energy store (40); and - a control unit (30) adapted to: - determine the energy demand status of the AC power grid (300); and - controlling and / or regulating the DC / DC converter (22) and the AC / DC converter (42) in dependence on the determined energy demand state.