Detecting a wind turbine rotor blade adjustment fault
AssigneeSiemens Gamesa Renewable Energy A/S
InventorPer Egedal
Life of this patent
Estimating the term…
Abstract
A method of detecting an adjustment fault related to a wind turbine rotor blade mounted at a wind turbine rotor and including an adaptable flow regulating device, in particular spoiler and/or flap, the method including: estimating a quantity indicative of a change of a driving impact of wind on the wind turbine rotor based on at least two settings of the adaptable flow regulating device; determining another quantity indicative of a desired change of the driving impact on the wind turbine rotor, in order to change a value of a rotor speed to a reference value of the rotor speed; and indicating an adjustment fault based on a comparison of the quantity with the other quantity, is provided.
Claims16
A method of detecting an adjustment fault related to a wind turbine rotor blade mounted at a wind turbine rotor and comprising an adaptable flow regulating device, the method comprising:
- estimating a first quantity indicative of a change of a driving impact of wind on the wind turbine rotor based on at least two settings of the adaptable flow regulating device that is installed on a surface of the wind turbine rotor blade;
- determining a second quantity indicative of a desired change of the driving impact on the wind turbine rotor to change a value of a rotor speed to a reference value of the rotor speed;
- and
- indicating an adjustment fault based on a comparison of the first quantity with the second quantity.
An arrangement for detecting an adjustment fault related to a wind turbine rotor blade mounted at a wind turbine rotor and comprising an adaptable flow regulating device, the arrangement comprising a processor adapted:
- to estimate a first quantity indicative of a change of a driving impact of wind on the wind turbine rotor based on at least two settings of the adaptable flow regulating device that is installed on a surface of the wind turbine rotor blade;
- to determine a second quantity indicative of a desired change of the driving impact on the wind turbine rotor to change a value of a rotor speed to a reference value of the rotor speed;
- and
- to determine a presence of an adjustment fault based on a comparison of the first quantity with the second quantity.
A wind turbine rotor blade, comprising:
- an adaptable flow regulating device;
- and
- an arrangement for detecting an adjustment fault related to the wind turbine rotor blade mounted at a wind turbine rotor and comprising an adaptable flow regulating device, the arrangement comprising a processor adapted:
- to estimate a first quantity indicative of a change of a driving impact of wind on the wind turbine rotor based on at least two settings of the adaptable flow regulating device that is installed on a surface of the wind turbine rotor blade;
- to determine a second quantity indicative of a desired change of the driving impact on the wind turbine rotor to change a value of a rotor speed to a reference value of the rotor speed;
- and
- to determine a presence of an adjustment fault based on a comparison of the first quantity with the second quantity.
Dependencies are inferred from the claim text.