General Electric Renovables Espana, S.l.

Keba Industrial Automation Germany Gmbh

Thomas Wiesenthal

Tobias Theopold

Björn Schreiner

Bjorn Schreiner

A wind turbine with at least one rotor blade and at least one pith drive for turning the at least one rotor blade, the wind turbine comprising a controller which analyses the wind turbine if a first error situation or a second error situation occurs and wherein the controller is adapted to react to the first error situation in absence of a second error situation with a first error procedure, to a second error situation in absence of the first error situation with a second error procedure, and to an error situation where the first error and the second error occur at the same time with a third error procedure that is different to the first error procedure and to the second error procedure.

Method for controlling a wind turbine with increased safety

Described and shown is a process for preparing an emergency energy storage device, with at least one energy storage element for operation, whereby the emergency energy store is designed to provide emergency electrical energy for at least one energy consumer, whereby the energy (E) which can be drawn from the emergency energy storage and/or the peak output (P) which can be drawn from the emergency energy storage is determined and the operational readiness is established as soon as the energy (E) which can be drawn from the emergency energy storage and/or the peak output (P) which can be drawn from the emergency energy storage has reached a definable minimum energy value. A process for preparing an emergency energy storage device for operation in which the emergency energy storage is discharged via a discharging device and the heat occurring at the internal resistance (R) is used to heat the emergency energy storage device.

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Arnsberg, Germany

Thomas Wiesenthal