Island power grid, process for island operation and use of a synchronous generator

摘要

"ISLAND ELECTRIC NETWORK, PROCESS FOR OPERATING IT AND USING A SYNCHRONOUS GENERATOR". The invention relates to an island power grid with at least one power generator utilizing renewable energy sources which is why the power generator preferably is a wind power plant with a first synchronous generator, a DC link, at least at least one first power rectifier and one power inverter, a second synchronous generator and an internal combustion engine that may be coupled as a second synchronous generator. A fully controllable wind power unit (10) and an electromagnetic coupling (34) between the second synchronous generator (32) and the internal combustion engine (30) are provided to establish an island power grid in which the Internal combustion can be turned off completely while the wind power unit is generating enough power for all connected users with an efficiency that is as high as possible.