low cost and flexible offshore wind measurements using a floating lidar solution (flidar™) wind at...

LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)Wind at Sea session , EWEA 2013

sales@flidar.com | www.flidar.com | February 2013

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Product specifications – Technology characteristicsBUOY• Industry standard buoy with long track record• Designed for harsh environment

ENERGY• Fully autonomous, solar and wind powered • Offshore components• Dimensioning for European waters• No fossil fuels, no environmental harming liquids

MECHANICSGimbal based motion stabilisation

LIDAR WINDCUBE®v2 Offshore• Electronics protected with water proofing beyond

standard offshore techniques for marine environment• IEC 60068-2-52 salt atmosphere compliantData correction to account for unit motion (software)

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Product specifications – Measurements and CommunicationWind & Environmental Measurements• Full WindCube V2 capabilities (up to 200m height, 1Hz and 10’ averages

data)• Sonic Anemometer (FLiDAR deck)• Temperature, pressure, humidity (FLiDAR deck)• Sea temperature (FLiDAR hull)• Waves and currents (under development)

Data communication• Satellite: 10’ averages once a day• GPRS: Real time full data access• Wi-Fi: Near FLiDAR operations (full data

access)• Storage: On board and SFTP

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Measurement campaigns & results – Belgian trials

Jul – Dec 2011

One month test next to Oostdijkbank platform 20Km offshore the Belgian coast

Conditions during test:Max. significant wave height: 5m, period from 4 to 10s

Wind up to 25m/s

Oostdijkbank Radar Platform

Feb-March 2011Near-shore Proof of concept

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Measurement campaigns & results – Belgian trials

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Measurement campaigns & results – Belgian trial - DTU report

Wind speed and direction @ 100m

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Measurement campaigns & results – Belgian trial - DTU report

Accuracy deviations in 10’ averages with respect to wind direction and wind speed intensity

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

VALIDATION IN IRISH SEA AGAINST FIXED METMAST

Carbon TrustOffshore Wind Accelerator ProjectRWE - Gwynt y Môr site

Note: OWA (Offshore Wind Accelerator) is not the same as OWA (Offshore Wind Assistance)

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Measurement campaigns & results – OWA – RWE GyM site – Carbon TrustPreliminary results from Offshore Wind Accelerator Project

• Above results are based on 1.5 days out of nearly 3 months of data collected to date• The data are processed using an offline post-processing algorithm (FLiDAR correction

algorithm V2) rather than on-board (real time) algorithm on the FLIDAR

Wind speeds above 2m/s @ 90m(n of points >=40)

Y=0.98189*xR²=0.99373

Wind direction @ 70m(n of points >=40)

Y=0.96774*xR²=0.97602

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

Summary and conclusions

• FLiDAR is a highly accurate wind flow measurement device due to the combination of mechanical stabilization and software based measurement adaptation

• FLiDAR is an autonomous renewable powered offshore measurement device

• OWA/ GyM (Irish Sea) preliminary/ sample results show that FLiDAR measurement accuracy in wind speed is equivalent with the one obtained in the Belgian trial (r² = 0.994)

• OWA/ GyM preliminary/ sample results show that FLiDAR wind direction measurement is improved with the version 2 algorithm (r² = 0.976)

• Further processing of OWA/GyM results for the full period of the trial is underway

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LOW COST AND FLEXIBLE OFFSHORE WIND MEASUREMENTS USING A FLOATING LIDAR SOLUTION (FLIDAR™)

THANK YOU

CONTACT US FOR MORE INFORMATION:

Athanasios KyriazisProduct Manager

sales@flidar.com T: +32 2 217 58 68www.FLiDAR.com

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