US 2015/0176566 A1Published application

System and Method of Controlling a Wind Turbine

AssigneeAcciona Windpower, S.A.

InventorsAlfonso Ruiz Aldama, Diego Otamendi Claramunt, Teresa Arlaban Gabeiras, Ana Fernandez Garcia De Iturrospe, Alejandro Gonzalez Murua, Jose Miguel Garcia Sayes, Miguel Nunez Polo

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Abstract

It describes a control system and method of a wind turbine to operate it in optimum output operation in situations wherein incidents occur. To do this a series of measurements are taken of elements in the surrounding area of the wind turbine which incide it to be able to calculate blade pitch angle set-points to reorientate or move the same until positions designated in accordance with said pitch angle set-point. The method described here is based, among other parameters, on the wind speed; so that it provides for at least two possible control situations in accordance with said speed: one when the speed is less than a rated value and another when said speed is greater than a rated value.

Claims20

Dependent claims

Wind turbine control method for a wind turbine equipped with:

a rotor with a plurality of blades, in turn comprising respective actuators configured to vary a pitch angle of each blade,
and a control unit,
the method comprising:
obtaining at least one value indicative of wind distribution in an area swept by the rotor and,
determining an azimuthal position for each blade,
calculating for each blade a variable blade pitch angle set-point according to a periodical function which establishes a blade pitch angle in accordance with the azimuthal position of the blade, where the periodical function has a period substantially equal to that of rotation of the rotor and a phase dependent on at least one value indicative of wind distribution in the area swept by the rotor, and
making the blade pitch angle set-point reach the actuators.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/560,240Filed 4 Dec 2014
Priority: ES 2013317734 Dec 2013
Published: 25 Jun 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F03D 7/0224
Adjusting aerodynamic properties of the blades: adjusting blade pitch
F03D 7/024
Adjusting aerodynamic properties of the blades: of individual blades
F03D 7/043
By means of an electrical or electronic controller: characterised by the type of control logic
F05B 2270/326
Control parameters, e.g. input parameters: rotor angle

Family

US 9,903,340 B2Related patent
US 2015/0176566 A1This patent

From the US filing history. Foreign family members aren’t listed.

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