Design and stability analysis of 5MW Ⅴ-type floating wind turbine platform
Based on the principle of static mechanics and the IMO requirements,a Ⅴ-type semi-submersible offshore platform equipped with NREL 5 MW wind turbine was designed,and its intact stability were calculated and verified.The results showed that the platform design is excellent and reasonable.The platform can ensure sufficient structural stability un-der both the operation condition and the survival condition for any inclination axis.The minimum allowable vertical center of gravity of the platform is 12.2 m during the survival condition,while the actual center of gravity is 9.6 m,which does not ex-ceed the allowable limit.It is noted that the 30° inclination axis is the platform's dangerous axis,for which the stability is rel-atively poor.It is thus necessary to pay attention to the lateral heeling movement of the platform under this inclination axis.
Ⅴ-type floating wind turbinesemi-submersible offshore platformintact Stabilityallowable vertical center of gravity
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