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Natural Power and Risoe DTU, have successfully installed ZephIR in the rotating spinner of a Vestas NM80 turbine located at Tjæreborg Enge in western Denmark.
The results demonstrate that a forward-looking spinner-mounted continuous wave lidar, named ControlZephIR, can measure wind components upwind at multiple sampling points distributed over the rotor plane of an operating wind turbine. When combined with the control systems of the turbine such measurements can provide real-time input to the turbine’s individual blade pitch control (IPC) systems and in this way help compensate the effects of yaw errors and strong wind shear, potential benefits include load reduction and increased turbine energy yield.
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