When the incoming wind passes through the rotating wind wheel, the wind speed decreases and the turbulence intensity increases downstream of the wind turbine, which is called the wake effect of the wind turbine. The wake effect has two main effects on the safe and efficient operation of wind turbines: 1) When the incoming wind speed of the wind turbine in the wake decreases, and the power of the wind turbine will decrease by 5%~40%; 2) When the turbulence intensity in the wake increases, The fatigue load of the wind turbine increases by 10% to 45%. A deep understanding of wake effects is the key to the micro-site selection of wind farms, which is of great significance for improving the efficiency and working life of wind turbines.
One unit of Wind3D 6000 can monitor the wake of a whole wind farm, reaching a scanning range of 6km in radius, which can clearly observe the turbine‘s position and the size and flow direction of the wake, as well as the wind speed and wind direction information of the environmental wind field. To avoid the wear of the wind turbine components under high wind speed, and the influence of the front wind turbine wake on the power generation of the rear wind turbine, it is necessary to control the blades movement of the wind turbine based on the lidar monitoring data.。
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