Laser Sensors for Wind Turbines

A new fiber-optic laser system can measure wind speed and direction up to 1000 meters in front of a wind turbine, giving the massive machines enough precious seconds to proactively adapt to gusts and sudden changes in wind direction. The device, developed by Catch the Wind, a startup based in Manassas, VA, could improve the efficiency of wind turbines and keep them from breaking down. A prototype of the new laser-based LIDAR system, shown here, can horizontally project three invisible laser beams up to 300 meters in front of a wind turbine. Small particles in the wind are detected as they cross the beams. Catch the Wind claims that its laser system can boost turbine power output by 10 percent by improving orientation accuracy. The pitch of the blades can also be adjusted in advance of the wind to reduce wear and tear on turbine gearbox components and blades, lowering repair and maintenance costs by up to 10 percent and extending the operating life of a wind farm, the company says. Read more here.

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