Efficient preliminary floating offshore wind turbine design and testing methodologies and application to a concrete spar design

The current key challenge in the floating offshore wind turbine industry and research is on designing economic floating systems that can compete with fixed-bottom offshore turbines in terms of levelized cost of energy. The preliminary platform design, as well as early experimental design assessments...

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Published in:Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences physical, and engineering sciences, 2015-02, Vol.373 (2035), p.20140350
Main Authors: Matha, Denis, Sandner, Frank, Molins, Climent, Campos, Alexis, Cheng, Po Wen
Format: Article
Language:English
Subjects:
Aerogeneradors
AFOSP project
Combined Wind Wave Testing
Design
Energia eòlica
Energies
Enginyeria civil
Floating Offshore Wind Turbines
Materials i estructures
Monolithic Concrete Spar Buoy
Offshore wind power plants
Parcs eòlics marins
Tipologies estructurals
Àrees temàtiques de la UPC
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Summary:The current key challenge in the floating offshore wind turbine industry and research is on designing economic floating systems that can compete with fixed-bottom offshore turbines in terms of levelized cost of energy. The preliminary platform design, as well as early experimental design assessments, are critical elements in the overall design process. In this contribution, a brief review of current floating offshore wind turbine platform pre-design and scaled testing methodologies is provided, with a focus on their ability to accommodate the coupled dynamic behaviour of floating offshore wind systems. The exemplary design and testing methodology for a monolithic concrete spar platform as performed within the European KIC AFOSP project is presented. Results from the experimental tests compared to numerical simulations are presented and analysed and show very good agreement for relevant basic dynamic platform properties. Extreme and fatigue loads and cost analysis of the AFOSP system confirm the viability of the presented design process. In summary, the exemplary application of the reduced design and testing methodology for AFOSP confirms that it represents a viable procedure during pre-design of floating offshore wind turbine platforms.
ISSN:1364-503X
1471-2962
DOI:10.1098/rsta.2014.0350