The objective of this investigation was to verify the feasibility of using the spinner anemometer calibration and nacelle transfer function determined on one reference turbine, to assess the power performance of a second identical turbine. An experiment was set up with a met-mast in a position suitable to measure the power curve of the two wind turbines, both equipped with a spinner anemometer. An IEC 61400-12-1 compliant power curve was then measured for both turbines using the met-mast. The NTF (Nacelle Transfer Function) was measured on the reference turbine and then applied to both turbines to calculate the free wind speed. For each of the two wind turbines, the power curve (PC) was measured with the met-mast and the nacelle power curve (NPC) with the spinner anemometer. Four power curves (two PC and two NPC) were compared in terms of AEP (Annual Energy Production) for a Rayleigh wind speed probability distribution. For each turbine, the NPC agreed with the corresponding PC within 0.10% of AEP for the reference turbine and within 0,38% for the second turbine, for a mean wind speed of 8 m/s.
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机译：这项研究的目的是验证使用在一个参考涡轮上确定的旋转风速仪校准和机舱传递函数来评估第二个相同涡轮的动力性能的可行性。在安装有桅杆的位置进行实验，该桅杆的位置适合测量两台都装有旋转风速计的风力涡轮机的功率曲线。然后使用气象台对两个涡轮机测量了符合IEC 61400-12-1的功率曲线。在参考涡轮上测量NTF（Nacelle传递函数），然后将其应用于两个涡轮以计算自由风速。对于两个风力涡轮机中的每一个，功率曲线（PC）分别通过桅杆测量，机舱功率曲线（NPC）使用旋转风速仪测量。根据瑞利风速概率分布的AEP（年发电量）比较了四个功率曲线（两个PC和两个NPC）。对于每个涡轮机，NPC与相应的PC达成一致，即参考涡轮机的AEP在0.10％以内，第二涡轮机的APC在0.38％以内，平均风速为8 m / s。
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