LIDAR SUPPLEMENT 05


between lidar and cup anemometer turbulence intensity varied markedly both with height and atmospheric stability. The majority of the ground-based wind lidar


manufacturers today, design with fixed inclination azimuth-scanning beams. For this configuration, however, we concluded that it will not be possible to directly measure the turbulence intensities as to achieve rigorous agreement with conventional anemometry, unless we introduce supporting measurements from a mast instrument or introduce additional assumptions about the turbulence.


‘WindScanner’ research infrastructure At Risø DTU, we are heading the establishment of a new Research Infrastructure (RI) for lidar wind and turbulence measurements based around large turbines onshore and offshore. The activity is called ‘WindScanner’. With seven partners from the European


Energy Research Alliance (EERA), WindScanner joined the European infrastructure ESFRI RI Roadmap in 2010 to boost the use of remote sensing for wind energy nationally, regionally, and throughout Europe. Our aim with WindScanner is to develop and jointly disseminate the use of mobile


WindScanner lidars for detailed 3D wind scanning and mapping of the wind and turbulence structures around today’s huge wind turbines, to deploy portable WindScanners on and offshore for regional measurement of wind conditions and energy assessment, and also to help develop and test new small wind lidars integrated into wind turbines for wind turbine control.


» Three short-range wind scanners, built from modified continuous wave ZephIR wind lidars, have been constructed to date «


WindScanners, both for short-range and


for long-range applications, have recently been constructed in connection with the establishment of a first new Danish national research infrastructure based on remote sensing of wind (see www.windscanner.dk)


2D steerable scan head on top of short-range WindScanner


Short-range (10 – 250 m) WindScanners Three short-range wind scanners, built from modified continuous wave ZephIR wind lidars, have been constructed to date. The short-range WindScanners are each equipped with individual two-axis prism-based, beam-


2,233,855 450


50 21 10 1


yourwindlidar.com ONSHORE | OFFSHORE | TURBINE MOUNTED


The number of operational hours accumulated over ZephIR’s seven year proven track record across 32 countries


The number of commercial deployments of ZephIR, which has subjected the equipment to harsh conditions including -40°C to +50°C ambient temperatures


The number of wind data points ZephIR can measure every second, essential in providing accurate wind data in fast changing flow conditions such as complex terrain


The number of Trusted Service Providers established as a global network of ZephIR partners including GL Garrad Hassan, DNV and AWS Truepower


The number of measurement heights that ZephIR can measure at - from just 10 metres up to 200 metres, and an extended range up to 300 metres


The number of commercially available continuous wave lidars which offer 50 measurement points, at heights down to just 10 metres. ZephIR 300 is unique.


This is your wind lidar. Designed by wind engineers, for wind engineers.


ZephIR


300 wind lidar


product innovations


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