Keba Industrial Automation Germany Gmbh

Other

General Electric Renovables Espana, S.l.

Moog Unna Gmbh

Embex Gmbh

Tobias Theopold

Thomas Wiesenthal

Björn Schreiner

Matthias Pauli

Ray Opie

Lars Kauke

Bjorn Schreiner

Opie Ray

Denis O'sullivan

Robert O'sullivan

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.

Method for preparing an emergency energy store for operation

A wind turbine temperature control system for maintaining the temperature of an energy storage device, the temperature control system has a breaking resistor for providing heat to the energy storage device and a power supply for causing a current to flow in the breaking resistor.

Wind turbine pitch cabinet temperature control system

A wind turbine with pitch motors for pitching rotor blades, further comprises a first sensor unit and a second sensor unit configured to measure at least one of a voltage value and a current value at a first location and a second location, wherein the voltage value and current value are indicative of the condition of a backup power supply. When the second location is different from the first location the measurement results are independent from each other. A comparison of the two measurements then gives a level of confidence how these measurements match each other. In case of a low level of confidence the pitch drive motors are caused to pitch the rotor blades into a feathering position.

Wind turbine diagnostic apparatus with diverse sensor testing

A method for charging an electric emergency energy storage device () comprising the following steps: predicting the energy demand Eof the energy consumer (), determining the capacitance C of the emergency energy storage device () and the internal resistance Rof the emergency energy storage device (), calculating a charging voltage U, whereby the charging voltage Uis calculated in such a way that the energy Estored in the emergency energy storage device () at this charging voltage Uis just enough to meet the predicted energy demand E, taking into account losses that occur, especially at the internal resistor R, and charging or discharging the emergency energy storage device () until the calculated charging voltage Uhas been reached.

Method for charging an electric emergency energy storage device

Growing community of inventors

Dortmund, Germany

Tobias Theopold