METHOD FOR OPERATING AN ENERGY INSTALLATION, AND AN ENERGY SYSTEM COMPRISING SUCH ENERGY INSTALLATIONS

摘要

A method is disclosed for operating an energy installation having a wind turbine or water turbine connected to a generator, a converter unit connected on the generator side to the generator, and an auxiliary energy unit for providing electrical energy to cover an intrinsic energy demand of the energy installation. The converter unit is connected to an electric power grid and feeds electrical energy generated by the generator into the electric power grid via the converter unit. The auxiliary energy unit is connected to the electric power grid for drawing electrical energy. In the event of a separation of the converter unit and of the auxiliary energy unit from the electric power grid, the auxiliary energy unit draws electrical energy from an energy storage unit for an adjustable period of time, and the auxiliary energy unit then draws electrical energy generated by the generator via the converter unit.