An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine

作者：Hong Sinpyo^*; Lee Inwon; Park Seong Hyeon; Lee Cheolmin; Chun Ho Hwan; Lim Hee Chang

来源：International Journal of Naval Architecture and Ocean Engineering, 2015, 7(3): 559-579.

DOI：10.1515/ijnaoe-2015-0040

• SPAR buoy
• Floating offshore wind turbine
• Scale model experiment
• Mooring cable tension

An experimental study of the effect of mooring systems on the dynamics of a SPAR buoy-type floating offshore wind turbine is presented. The effects of the Center of Gravity (COG), mooring line spring constant, and fairlead location on the turbine's motion in response to regular waves are investigated. Experimental results show that for a typical mooring system of a SPAR buoy-type Floating Offshore Wind Turbine (FOWT), the effect of mooring systems on the dynamics of the turbine can be considered negligible. However, the pitch decreases notably as the COG increases. The COG and spring constant of the mooring line have a negligible effect on the fairlead displacement. Numerical simulation and sensitivity analysis show that the wind turbine motion and its sensitivity to changes in the mooring system and COG are very large near resonant frequencies. The test results can be used to validate numerical simulation tools for FOWTs.

• 出版日期2015-5