Method for starting up a wind turbine
AssigneeSiemens Gamesa Renewable Energy Innovation & Technology S.L.
InventorsEsteban Belmonte de Udaondo, Javier Garcés Quilez, Dennis Stachniuk Jensen, Stephane Munch, Aitor Saenz Aguirre
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Abstract
A method for starting up a wind turbine for generating electrical power is provided, wherein ice accretion is on at least one blade of a rotor of the wind turbine and wherein the at least one blade has a variable pitch angle, the method including measuring the rotational speed of the electromechanical transducer, calculating a pitch angle adjustment with the goal of maximizing the rotational speed, modifying the pitch angle in a positive or negative step according to the pitch angle adjustment, iterate the preceding steps.
Claims11
A method for starting up a wind turbine for generating electrical power, wherein ice accretion is on at least one blade of a rotor of the wind turbine and wherein the at least one blade has a variable pitch angle, the method comprising:
- measuring a rotational speed of an electromechanical transducer;
- calculating a pitch angle adjustment with a goal of maximizing a rotational speed of the wind turbine;
- modifying the variable pitch angle in a positive or negative step according to the pitch angle adjustment;
- and
- iterate the preceding steps, whereby the method cyclically looks for an optimal pitch angle according to an evolution of the rotational speed, wherein
- the pitch angle adjustment is calculated with a cost function, the cost function receiving the rotational speed of the electromechanical transducer as an input with the goal of maximizing the rotational speed.
Dependencies are inferred from the claim text.