Self-aligning behaviour of a passively yawing floating offshore wind turbine

Publikationstyp
Journal Article
Date Issued
2020-01-02
Sprache
English
Author(s)
Netzband, Stefan  
Schulz, Christian  orcid-logo
Abdel-Maksoud, Moustafa  orcid-logo
Institut
Fluiddynamik und Schiffstheorie M-8  
TORE-URI
http://hdl.handle.net/11420/7744
Journal
Ship technology research  
Volume
67
Issue
1
Start Page
15
End Page
25
Citation
Ship Technology Research 1 (67): 15-25 (2020-01-02)
Publisher DOI
10.1080/09377255.2018.1555986
Scopus ID
2-s2.0-85058692826
Floating offshore wind turbines are a promising concept for expanding offshore wind energy. In comparison with fix-founded offshore wind turbines, the overall costs are less dependent on water depths, which leads to a variety of potential locations and markets worldwide. Furthermore, floating platforms allow for new structural designs with the potential to save material and installation costs. In this paper, a self-aligning platform equipped with a 6 MW turbine is presented. The platform is moored on a single point and uses a turret buoy to be able to rotate freely around its anchor point. A downwind rotor and an airfoil-shaped tower induce self-aligning turning moments to passively follow changes of the wind direction. The first order boundary element method panMARE is used to simulate the motion behaviour considering aerodynamic, hydrodynamic and mooring loads. The self-aligning capability is demonstrated under partial turbine load for steady and dynamic conditions with waves and current.
Subjects
boundary element method
Panel method
self-Aligning floating offshore wind turbine