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《中国海洋工程(英文版)》 2017-05
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Concept Design and Coupled Dynamic Response Analysis on 6-MW Spar-Type Floating Offshore Wind Turbine

MENG Long;ZHOU Tao;HE Yan-ping;ZHAO Yong-sheng;LIU Ya-dong;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE);School of Naval Architecture,Ocean & Civil Engineering,Shanghai Jiao Tong University;  
Tower,Spar platform and mooring system are designed in the project based on a given 6-MW wind turbine.Under wind-induced only,wave-induced only and combined wind and wave induced loads,dynamic response is analyzed for a 6-MW Spar-type floating offshore wind turbine(FOWT) under operating conditions and parked conditions respectively.Comparison with a platform-fixed system(land-based system) of a 6-MW wind turbine is carried out as well.Results demonstrate that the maximal out-of-plane deflection of the blade of a Spar-type system is 3.1% larger than that of a land-based system;the maximum response value of the nacelle acceleration is 215% larger for all the designed load cases being considered;the ultimate tower base fore-aft bending moment of the Spar-type system is92% larger than that of the land-based system in all of the Design Load Cases(DLCs) being considered;the fluctuations of the mooring tension is mainly wave-induced,and the safety factor of the mooring tension is adequate for the 6-MW FOWT.The results can provide relevant modifications to the initial design for the Spar-type system,the detailed design and model basin test of the 6-MW Spar-type system.
【Fund】: financially supported by the National Basic Research Program of China(973 Program Grant No.2014CB046205)
【CateGory Index】: TM315
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