Method for the operation of a wind turbine and wind turbine...

Details Method for the operation of a wind turbine and wind turbine... Method for the operation of a wind turbine and wind turbine...

2009-05-28

2011-12-20

Hanh, Nguyen N (Department: 2834)

Prime-mover dynamo plants

Electric control

Fluid-current motors

Reexamination Certificate

active

08080890

ABSTRACT:
A method for the operation of a wind turbine comprising a rotor with at least one rotor blade, a generator and a speed regulator for regulating the rotational speed of a drive train element by adjusting a generator torque and/or a blade pitch angle, comprising the steps of: determining the angular speed of the drive train element through the time derivative of an angular position signal, determining the angular acceleration of the drive train element, presetting desired values for the generator torque and/or the blade pitch angle taking into account the angular speed of the drive train element and the angular acceleration of the drive train element, wherein the angular acceleration of the drive train element is determined from the angular position signal, wherein a filtering with an upper cut off frequency is performed after the first time derivative of the angular position signal and before a second time derivative of the angular position signal, said upper cut off frequency being tuned to a maximum adjustment speed of the generator torque and/or of the blade pitch angle.

REFERENCES:
patent: 4656362 (1987-04-01), Harner et al.
patent: 2009/0162202 (2009-06-01), Nies et al.
patent: 2009/0250932 (2009-10-01), Egedal
patent: 2011/0089693 (2011-04-01), Nasiri
patent: 10 2007 007 872 (2008-08-01), None

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