US 9,810,200 B2
Method for controlling a profile of a blade on a wind turbine
Peter Fogh Odgaard, Hinnerup (DK)
Assigned to KK WIND SOLUTIONS A/S, Ikast (DK)
Appl. No. 14/391,470
Filed by Peter Fogh Odgaard, Hinnerup (DK)
PCT Filed Apr. 11, 2012, PCT No. PCT/DK2012/050121
§ 371(c)(1), (2), (4) Date Oct. 9, 2014,
PCT Pub. No. WO2013/152767, PCT Pub. Date Oct. 17, 2013.
Prior Publication US 2015/0078895 A1, Mar. 19, 2015
Int. Cl. F03D 1/06 (2006.01); F03D 7/04 (2006.01); F03D 7/02 (2006.01)
CPC F03D 7/04 (2013.01) [F03D 1/0641 (2013.01); F03D 7/0204 (2013.01); F03D 7/0224 (2013.01); F03D 7/0232 (2013.01); F03D 7/0268 (2013.01); F03D 7/046 (2013.01); Y02E 10/721 (2013.01); Y02E 10/723 (2013.01)] 21 Claims
OG exemplary drawing
 
1. Method for controlling pitch angle of a blade on a wind turbine having at least a first blade and a second blade,
the first blade comprise at least one first sensor system measuring at least one parameter related to a blade state of the first blade and communicating the at least one measured parameter to a controller adapted to determine a first blade state, and
the second blade comprise at least one second sensor system measuring at least one parameter related to a blade state of the second blade and communicating the at least one measured parameter to the controller adapted to determine a second blade state,
wherein the first blade state is defined by the controller based on the at least one measured parameter related to the first blade state,
wherein the second blade state is defined by the controller based on the at least one measured parameter related to the second blade state, and
wherein the pitch angle of the second blade is adjusted by the controller in advance of the arrival of the second blade in a point in the rotor plane, at least based on the first blade state determined based on the at least one parameter related to the first blade state measured in said point and further based on the blade state of the second blade.