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![Page 1: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/1.jpg)
The Triple Spar campaign: Experiments with a floating wind turbine in wind, waves and blade pitch control
Henrik Bredmose, Frank Lemmer, Michael Borg, Antonio Pegalajar Jurado, Robert Mikkelsen, Troels Stoklund Larsen, Tobias Fjeldstrup, Yu Wei, Anders Kjær Lomholt, Lasse Boehm, José Azcona Armendariz DTU Wind Energy University of Stuttgart CENER
![Page 2: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/2.jpg)
The Triple Spar campaign: Experiments with a floating wind turbine in wind, waves and blade pitch control
Henrik Bredmose, Frank Lemmer, Michael Borg, Antonio Pegalajar Jurado, Robert Mikkelsen, Troels Stoklund Larsen, Tobias Fjeldstrup, Yu Wei, Anders Kjær Lomholt, Lasse Boehm, José Azcona Armendariz DTU Wind Energy University of Stuttgart CENER
![Page 3: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/3.jpg)
Floating wind turbine tests DeepCWind consortium Marin + ECN Ulsan Mitsubishi Heavy Industries University of Maine Marintek DTU University of Stuttgart Politecnico di Milano Hansen et al (2014) Sandner et al (2015) Bredmose et al (2015)
Pegalajar-Jurado et al (2016)
![Page 4: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/4.jpg)
![Page 5: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/5.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
![Page 6: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/6.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Designed in the INNWIND.EU project. Hybrid of semi-sub and spar. Heave plates and catenary mooring Lemmer, F., Amann, F., Raach, S., & Schlipf, D. (2016). Definition of the SWE-TripleSpar platform for the DTU10MW reference turbine. http://www.ifb.uni-stuttgart.de/windenergie/downloads Sandner, F., Yu, W., Matha, D., Azcona, J., Munduate, X., Grela, E., Voutsinas, S., Natarajan, A. (2014). INNWIND.EU D4.33: Innovative Concepts for Floating Structures. Stuttgart. Borg M (2016) Mooring system analysis and recommendations for the INNWIND Triple Spar concept. DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models
![Page 7: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/7.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
![Page 8: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/8.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
7.0N
1.5 m/s
1.5 m/s
1.5 m/s
1.5 m/s
74 RPM
DTU 10MW reference WT Froude scaling: Length ~ λ Time ~ λ1/2
Velocity ~ λ1/2 Air velocities (model scale) ~ 1.5 m/s
Re (proto scale) ~ 10M
Re (model scale): ~ 25k
![Page 9: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/9.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Low Re airfoils 75% increased chord
![Page 10: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/10.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
6 units New fan-motors Wind speed up to 2.1 m/s Unwanted ‘reverse’ shear Now fixed !
SeaState H [m] T [s] W [m/s]
1 0.039 0.71 0.90
2 0.048 0.78 1.00
3 0.055 0.84 1.10
4 0.062 0.89 1.30
5 0.069 0.94 1.50
6 0.08 1.01 1.70
7 0.091 1.08 1.89
8 0.129 1.29 1.89
9 0.159 1.43 1.89
10 0.20 1.60 1.89
![Page 11: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/11.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
![Page 12: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/12.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Rotor ID Wind speed -> rotor speed Measure thrust and torque vs blade pitch Gives desired blade pitch
![Page 13: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/13.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Rotor ID Wind speed -> rotor speed Measure thrust and torque vs blade pitch Gives desired blade pitch
![Page 14: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/14.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
[Yu Wei, SWE]
![Page 15: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/15.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
[Yu Wei, SWE]
![Page 16: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/16.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
[Yu Wei, SWE]
![Page 17: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/17.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
[Yu Wei, SWE]
![Page 18: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/18.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
![Page 19: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/19.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
![Page 20: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/20.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
![Page 21: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/21.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Regular waves
![Page 22: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/22.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Focused wave
![Page 23: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/23.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Platform pitch instability
![Page 24: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/24.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Irregular waves
![Page 25: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/25.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Irregular waves
![Page 26: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/26.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling
Re-modelling in FAST Regular wave-only case
![Page 27: The Triple Spar campaign: Experiments with a floating … · DTU Wind Energy Report-I-0448, Kgs. Lyngby, Denmark. H: Lemmer et al L50+ D1.2: Simplified models . Rotor design The Triple](https://reader031.fdocuments.net/reader031/viewer/2022022019/5b98695b09d3f219118c1bc1/html5/thumbnails/27.jpg)
Rotor design
The Triple Spar floater
Results
Control, nacelle and rotor ID
Wind climate and waves
Re-modelling