Publicaties

Skip Navigation Links.
Recent verschenen
Expand per documenttypeper documenttype
Collapse per Unitper Unit
Expand Business DevelopmentBusiness Development
Expand Biomass & Energy EfficiencyBiomass & Energy Efficiency
Expand BeleidsstudiesBeleidsstudies
Expand Corporate CommunicationsCorporate Communications
Expand CorporateCorporate
Expand Environment & Energy EngineeringEnvironment & Energy Engineering
Expand Program DevelopmentProgram Development
Expand Quality Safety Health and EnvironmentQuality Safety Health and Environment
Expand Strategy & PlanningStrategy & Planning
Collapse WindenergieWindenergie
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
Expand Zonne-energieZonne-energie
Expand per Clusterper Cluster

Zoeken naar publicaties:
Beperk het zoeken tot de velden:

ECN publicatie:
Titel:
The influence of offshore floating foundations to the wind turbine generator. A study using aNySIMPHATAS
 
Auteur(s):
Hermans, K.W.; Peeringa, J.M.; Verbruggen, T.
 
Gepubliceerd door: Publicatie datum:
ECN Windenergie 5-1-2017
 
ECN publicatienummer: Publicatie type:
ECN-E--16-032 ECN rapport
 
Aantal pagina's: Volledige tekst:
66 Download PDF  (3766kB)

Samenvatting:
In this report, three floating wind turbine foundation concepts are modelled; a Semi-submersible, Spar and tension leg platform type. The floating foundations are modelled with an NREL 5 MW reference turbine on top, and a monopile reference is included to act as a baseline model. An extensive set of 828 loadcases is simulated using the combined aero-elastic behaviour of PHATAS and hydrodynamic interaction from aNySIM. The floating structures are modelled as rigid bodies due to numerical solving limitations of the combined code. The environmental conditions simulated in the loadcases are applied equally to all floater types. Only the water depth differs for the models. The result is a large set of dynamic response data for the different floating foundations that can be compared directly. The Spar type foundation is shown to result in the largest loads on the turbine. However, sharp peaks in the load response are visible, likely caused by the dynamic stall model.

For the tension leg platform, a more detailed analysis is carried out for determining the tendon stiffness. This effort is finalized by proposing an integrated tendon design method for tension leg platforms.

Finally, an analysis is carried out for three mooring line configurations of the Semi-submersible floating foundation. Here a three line spread mooring configuration is compared with a three line hybrid configuration (applying chain and wire rope) and a six line configuration. The displacement and mooring line tension of all configurations remains within acceptable limits. The costs of the configurations have been estimated and a 25 % cost reduction can potentially be achieved when choosing the hybrid mooring line configuration over the other options.


Terug naar overzicht.