Rotational Speed Control of a Wind Turbine Based on Rotor Acceleration
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Abstract
It is described a method for controlling the rotational speed of a rotor of a wind turbine in particular at high wind speeds. The described method comprises (a) determining a rotor acceleration value, wherein the rotor acceleration value is caused by a temporal change of the rotational speed of the rotor, and (b) controlling the rotational speed of the rotor as a function of the rotor acceleration value. It is further described a control system for controlling the rotational speed of a rotor of a wind turbine, a wind turbine being equipped with such a control system and to a computer program, which is adapted for controlling and/or for carrying out the mentioned rotational speed control method.
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Citations
30 Claims
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1-14. -14. (canceled)
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15. A method for controlling the rotational speed of a rotor of a wind turbine during high wind speeds, the method comprising
determining a rotor acceleration value, wherein the rotor acceleration value is caused by a temporal change of the rotational speed of the rotor; - and
controlling the rotational speed of the rotor as a function of the rotor acceleration value. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 30)
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28. A control system for controlling the rotational speed of a rotor of a wind turbine in particular at high wind speeds, the control system, comprising:
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a determining arrangement for determining a rotor acceleration value, wherein the rotor acceleration value is caused by a temporal change of the rotational speed of the rotor, and a control unit for controlling the rotational speed of the rotor as a function of the determined rotor acceleration value. - View Dependent Claims (29)
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Specification