Concept design and coupled dynamic response analysis on 6-MW spar-type floating offshore wind turbine
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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 is 92% 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.
KeywordsSpar-type floating offshore wind turbine concept design combined wind and wave loads coupled dynamic response
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- Bae, Y.H., 2014. Development of A Dynamic Mooring Module FEAM for FAST v8, Texas A&M University, TX, USA.Google Scholar
- Bossanyi, E.A., 2005. Bladed for Windows User Manual, Garrad Hassan and Partners Limited, UK.Google Scholar
- Hansen, M.O.L., 2008. Aerodynamics of Wind Turbines, 2nd ed., Earthscan, London, UK.Google Scholar
- International Electrotechnical Committee, 2005. Wind Turbine Generator Systems. Part 1. Design Requirements, Geneva, Switzerland.Google Scholar
- International Electrotechnical Commission, 2009. Wind Turbines. Part 3. Design Requirements for Offshore Wind Turbines, Geneva, Switzerland.Google Scholar
- Jonkman, J.M. and Buhl, Jr., M.L., 2005. Fast User’s Guide, Technical Report NREL/TP-500-38230, National Renewable Energy Laboratory, Colorado, USA.Google Scholar
- Zhao, Y.S., Yang, J.M., He, Y.P., Peng, T. and Kou, Y.F., 2016c. Experimental study of a new multi-column tension leg-type floating wind turbine concept, Scientia Sinica Physica, Mechanica & Astronomica, 46(12), 124712. (in Chinese)Google Scholar