The energy of wind turbines comes from wind impellers, thus many technological transformations of wind turbines focus on improving the efficiency of wind impellers. The yaw error is a very common problem of the wind wheel efficiency. Because the wind turbine yaw is discontinuous, the error of the wind direction is not easy to be found, so the yaw error has been ignored.
Inaccurate wind measurement means loss of power generation. The error sources that affect the wind turbine yaw are:
(A) Installation error of the wind vane.
(B) Deflected airflow caused by the nacelle shape and the blades rotation.
(C) Yaw algorithm error caused by the air disturbance vortex of the blades and the nacelle.
WindHorizon H400 is a miniaturized and high-precision forward-looking wind lidar for nacelle installation, which can accurately detect the wind speed and direction information of any 10 distance gates from 50m to 400m in front of the turbine hub. The lidar shoots two laser beams into the front air of the wind turbine. By detecting the Doppler frequency shift of the reflected laser beams, the wind speed and direction of the air flow in front of the wind turbine can be measured. The wind impellers may block the laser beam because of its rotation, which WindHorizon H400 can automatically filter through advanced algorithms.
Tel: 0532-80922894
Fax: 0532-80922894
Mail: jennifer@leice-lidar.com
Address: 2F, Area A, Jiushui East Road No.600, Laoshan District, Qingdao, Shandong, China 266102
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