The Effect of Additional Mooring Chains on the Motion Performance of a Floating Wind Turbine with a Tension Leg PlatformReport as inadecuate




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1

Deep Sea Engineering Research Center, Dalian University of Technology, Dalian 116024, China

2

State Key Laboratory of Coast and Offshore Engineering, Dalian University of Technology, Dalian 116024, China





*

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Abstract In this study, two types of floating offshore wind turbine FOWT systems were proposed: a traditional tension leg platform TLP type and a new TLP type with additional mooring chains. They were both based on the National Renewable Energy Laboratory 5 MW offshore wind turbine model. Taking the coupled effect of dynamic response of the top wind turbine, tower support structure and lower mooring system into consideration, not only were the 1-60 scale model tests for the two floating wind turbine systems done in HIT’s wind-wave tunnel according to the typical design conditions in IEC61400-3 code, but also the numerical simulations corresponding to the scaled model tests were performed by advanced numerical tools. As a result, the numerical results displayed good agreement with the test data. Moreover, the additional mooring chains could play an active role in reducing the surge displacement, surge acceleration and typical tension leg force responses of the FOWT system, which is very beneficial for ensuring the good operational performance and the safety of the FOWT system. View Full-Text

Keywords: floating offshore wind turbine FOWT; tension leg platform TLP; wind-wave tunnel test floating offshore wind turbine FOWT; tension leg platform TLP; wind-wave tunnel test





Author: Nianxin Ren 1,* , Yugang Li 1 and Jinping Ou 1,2

Source: http://mdpi.com/



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