WindScanner.dk. - a new Remote Sensing based. Measurement Infrastructure for On- and Offshore Wind Energy Research.
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1 WindScanner.dk - a new Remote Sensing based Measurement Infrastructure for On- and Offshore Wind Energy Research Torben Mikkelsen Danish Wind Power Research 2013 Danish Research Consortium for Wind Energy Trinity Gl. Færgevej 30, Fredericia May 27-28, 2013
2 ... In 2002 Risø opens the test station for large wind Høvsøre...: 5 test stands Max. 10 MW Max. height 165 m Small test turbines at Risø
3 Østerild Prototype Wind Turbine Test Centre 2011: m tall WT s
4 ... Wind Turbines are getting bigger and bigger Cost pr kwh cent/kwh Airbus A380 vingefang 80m Year Year Introduction to Remote Sensing
5 Remote Sensing (RS) of Wind Speed: Why Remote Sensing? Wind Turbines are becoming BIG! Tall ( > 100 meters) Meteorological Towers expensive Tall Met Towers are difficult to move Introduction to Remote Sensing
6 Monostatic SODAR Introduction to Remote Sensing
7 Ground-based RS Wind Høvsøre 2004 Introduction to Remote Sensing
8 2003 : New Telecom comp. fibre wind Lidars Principles of the Doppler LIDAR Laser radiation scatters from atmospheric aerosols (dust, pollen, water vapour) Scattered radiation is Doppler shifted by the wind speed Sensitivity (rel. to peak) φ 1 π L L + s () s = 2 s Altitude 40m 60m 100m peak L 2.5 m 6 m 16 m f P( f ) df = P ( f ) df m 65 m Range (m) Introduction to Remote Sensing
9 Pulsed and Continuous wave Lidars: Velocity Azimuth Display VAD Scanning Mode: Introduction to Remote Sensing
10 Ground-based RS Wind Høvsøre 2003 => 2012: SODARS (2004) CW LIDARS (2006-) Pulsed LIDARS (2007-) Introduction to Remote Sensing
11 Remote Sensing for Wind Energy: Measurements of Wind Velocity in 3D Space and Time High Signal/Noise (range) High Temporal and Spatial Resolution (fast scanning-small measurement volumes)
12 Basic mechanical principles used in WindScanner.dk Prism 2 Prism 1 Mirror 1 Mirror 2 Laser beam controlled by two rotating prisms Both systems are based on two motors and a coupled gear system. That gives full control of the direction of the beam. Laser beam controlled by two rotating mirrors
13 The WindScanner RI s evolution: From new Wind Lidar Technology towards new Wind Energy Research Infrastructures : First CW Wind lidar 2004 MusketeerEX 2007/2008 SpinnerEX 2009 WindScanner. dk RI focus EU ESFRI Road Map 2010 ff Current Status Scientific focus Technical focus Wind Scan 13
14 EWEA 2012
15 WindScanner.dk Research & Innovation Product overview (2013) This document contains descriptions of Wind Scanner equipment developed by DTU Wind Energy and IPU in the period 2007 to The main purpose with this document is to transfer information about the equipment to the Windscanner.eu partners. Steen Andreasen. January
16 WindScanner.eu PP The European WindScanner Facility Center for Wind Energy and Turbulence Research EERA Partners: DTU SINTEF FORWIND Fraunhofer IWES; CRES; CENER; LNEG; UoP
17 Wind Scan 17
18 MusketeerEx-II: Høvsøre Dec Windscanner lidar test Spatial-resolution improved Stretch Pod Unit 107 (left) vs. Windscanner Unit 120 (right) 18 WindScanner.eu
19 WindScanner.dk: 12 -axes Control System Conneting and steering of 9 (+3 ) akser: Wind Scan 19 19
20 Short-range WindScanners (cw) Wind Scan 20
21 WINDSCANNER OVERVIEW Preparing for field measurements (3 X Short-range WindScanners)
22 Long-Range WindScaners (pulsed) On and offshore Ressource Assessment, Wind Conditions, Wakes Wind Scan 22
23 Long-range WindScanner Oct 2010 Range 5 (10) km => New Leosphere product WLS200S Risø DTU Workshop w/ Leosphere, Fr. and IPU Wind Scan 23
24 Marking GPS positions PER HANSEN GPS Antenna June 2013
25 WINDSCANNER OVERVIEW Long range Wind Scanners synchronously operating to measure wind speeds
26
27 Measurement scenario 1 - LOS Intersecting 3 beams at 118m Sampling rate 1 Hz Pulse length: 200 and 400 ns Around 20 hours of collected data June 2013
28 Sonic on Sterenn LOS sonic windscanner Long pulses, 10 min mean, 6 hours of data June 2013
29 WindScanner.dk ( ) A new Remote Sensing based Research Infrastructure Facility Torben Mikkelsen, Mike Courtney, Jakob Mann; Søren Knudsen; Mikael Sjöholm; Nikolas Angelou; Kasper Hjort Hansen; Nikola Vasiljevic; Farzad Abari Foroughi; Per Hansen tomi@dtu.dk Short-Range WindScanner (3 ps) 3D Wind and Turbulence Range m 400 Measurements s -1 Long-Range WindScanner (3 ps) 3D Wind Vector Scanning Range km Risø Campus Frederiksborgvej 399, P.O. Box 49, Build. 118 DK-4000 Roskilde, Denmark
30 Rapid 2D scanning of the flow behind a building 30 WindScanner.eu
31 Detailed Resource and Wind Condition Assessment require full-scale 3D flow and turbulence measurements : Wind Scan 31
32 Short-Range WindScanner R2D1: Scanning inflow over Bolund Hill Oct
33 Vertical speed profiles at the Bolund escarpment measured by a continuous wave short-range DTU WindScanner
34 Norwegian offshore rescue helicopter (Sea King 20 ton)
35 Horizontal scanning Pre-trial : R2D1 R2D2 35 WindScanner.eu
36 5 MINUTES AVERAGE Resulting Wind Vector Plot: 36 WindScanner.eu
37 Vertical scanning R2D1 & R2D2: Time 16:50-17: WindScanner.eu
38 Vertical Scan (9 minute average) R2D1 38 WindScanner.eu
39 Vertical Scan (9 minute average) R2D2 39 WindScanner.eu
40 Vertical Scan (10 minute average): R2D1 and R2D2 vertical scans Combined to final 2D vertical plot: 40 WindScanner.eu
41 Turbine control.: Introduction to Remote Sensing
42 25 kw Wind Turbine 1975: Ø/H ~ 0.3 Ø 2.3 MW NM80 Height 59 m; Ø=80H Ø/H ~ 1.4 HH
43
44 Design concepts for HTF Spinner Lidar : ControlZephIR Lidar equipped with 2D Scan Head New Design 2011 Lidar in Spinner Tjæreborg 2009 Prototype test D Upwind scanning concept
45 Tjæreborg NM
46 Real-time LIDAR Raw data (50 Hz un-calibrated):
47 Time series (10 s) of approaching wind conditions measured +100 m upwind: Ex.: Inhomogeneous wind field
48 Lidars: More Power? 48
49 Lidars: Reduce Yaw Error? Measurements of Yaw Error Statistics (ROMO): Højstrup, J., EWEA 2013: Poster viser middel krøjefejl for 40 møller. Den dynamiske krøjefejl varierer meget fra mølle til mølle til mølle. Figuren til højre viser iflg. JH en tilfældig (typisk) mølle [50 sec middelværdier]. Yaw Error Misalignment (40 turbines) Typical Turbine (50 s averages) HTF Wind 49
50 Wind Tunnel Test of LIDIC S HTF Wind 50
51 Presenting the 2D SpinnerLidar at EWEA 2012 Copenhagen: HTF Wind 51
52 Ex.3: WindScanner (SpinnerLidar) UpWind 2D scanning from the rotating spinner of 2.3 MW NM wind speed measurement points are retrieved from the scanned wake every (other) second : HTF Wind 52
53 Danish HTF Wind Lidar Integration at Tjæreborg Jul. - Oct. 2012: HTF Wind 53
54 Blade-lidar installation in Blade r=18 m NM MW July HTF Wind Lidar
55
56 First 2D SpinnerLidar measuring inflow 100 m upwind NM80, 2.3 MW WT: 56 HTF Wind Lidar
57 The Tjæreborg set-up
58 Inflow without wake influence
59 Inflow with wake influence
60 Power Curve measurements with ZephIR Dual Mode Control DTU Risø Campus NKT :
61
62 WindScanner 62 WindScanner.eu
63 Short-range: Wind Scan 63
64 Wind Scan 64
65 Long-range: Wind Scan 65
66 Wind turbine control: Wind Scan 66
67 Wind Scan 67
68 Wind Scan 68
69 Off shore: Wind Scan 69
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