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WIND TURBINE AND METHOD FOR MITIGATING THE ASYMMETRIC LOADS ENDURED BY THE ROTOR OR THE WIND TURBINE
WIND TURBINE AND METHOD FOR MITIGATING THE ASYMMETRIC LOADS ENDURED BY THE ROTOR OR THE WIND TURBINE
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机译:风轮机和减轻转子或风轮机承受的不对称载荷的方法
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摘要
A wind turbine comprises a rotor (10), a rotor hub (100), a transducer for measuring a displacementof a component of the turbine structure caused by asymmetric loads acting on the rotor, and a fixed supporting shaft (105) which supports the rotor atthe rotor hub. Said transducer comprises at least one strain-gauge sensor arranged for measuring a deformationof the fixed supporting shaftdue to asymmetric loads acting on the rotor. A computation system receives signals from one or more sensors and, based on the value of said signals, calculates at least one component of the asymmetric loads. The computation system commands actuators for individually setting the pitch of each blade of the turbine, in order to mitigate the asymmetric loads endured by the rotor.
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