Patent ID: 8084874

Claim:
A method of maintaining at least one critical component of a wind turbine operational during a period of time when the wind turbine is disconnected from a utility grid, and where at least one of said critical components comprises a consumer of electrical power, and where said wind turbine is intended for being connected to the utility grid and comprises at least one pitch-controlled rotor blade, said method comprising using a magnet generator as a sole electrical power-producing element during periods of time when the wind turbine is connected to the utility grid as well as during periods of time when the wind turbine is disconnected from the utility grid, continuing producing power from the wind during a utility grid disconnection, and adjusting an amount of the produced electrical power in order to keep the produced electrical power in balance with a required stochastic, time-dependent power consumption of a load of which at least one is an electrical power consumer of the wind turbine.