Method for reducing vibrations of a wind turbine and control system for reducing vibrations
AssigneeSiemens Aktiengesellschaft
InventorsPer Egedal, Dennis Soebye Jensen
Life of this patent
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Abstract
A method for reducing vibrations of a wind turbine includes a plurality of set points characterizing set values of operation parameters of the wind turbine. The method includes measuring an acceleration force value corresponding to acceleration forces acting on the turbine, and determining whether the measured acceleration force value is above a predetermined threshold value. Furthermore, in case it is determined that the acceleration force value is above the predetermined threshold value, the set point value of at least one set point of the plurality of set points is modified in order to reduce the vibrations in such a way that a power output of the wind turbine is not reduced.
Claims20
A method for reducing edgewise blade vibrations of a wind turbine, the method comprising:
- monitoring an a edgewise blade vibration, the monitoring including measuring an acceleration force value corresponding to acceleration forces acting on the wind turbine;
- determining the measured acceleration force value is above a predetermined threshold value;
- and,
- reducing the edgewise blade vibrations without reducing a power output of the wind turbine in response to acceleration force value being above a predetermined threshold, the reducing the edgewise blade vibrations includes reducing a first set point value which characterizes a generator rotation speed.
A control system for reducing edgewise blade vibrations of a wind turbine, comprising:
- a measuring unit for measuring an acceleration force value corresponding to acceleration forces acting on the wind turbine;
- a determining unit for determining the measured acceleration force value is above a predetermined threshold value;
- and
- a control unit for reducing a first set point value which characterizes a generator rotation speed in response to the acceleration force value being above the predetermined threshold value,
- wherein the edgewise blade vibrations are reduced while a power output of the wind turbine is not reduced.
Dependencies are inferred from the claim text.