A floating structure (1, Fig 1) for supporting a horizontal axis wind turbine (13, Fig 1) has a submersible hull 3 to which three buoyant bodies 5, 7 and 9 are attached and a wind turbine tower support structure 11. It is assembled from two sub-assemblies 16 and 18 that are each independently buoyant and independently stable when floating on water. A pontoon 15 of the first sub-assembly is provided at its first end (39 Fig 3) with a first connecting feature of a connection arrangement (19, Fig 3) which is connected during assembly to a second connecting feature of the connection arrangement that is provided as part of the first side wall (65, Fig 5) of a pontoon 17 of the second sub-assembly. The first side wall of the second pontoon is located substantially within a single plane that is orientated during assembly to be perpendicular to the axis X-X of the first pontoon. The first and second pontoons each comprise ballast tanks (60, 62, Fig 3) and (88 ,90, Fig 5) so that, during assembly the heel of the first and second sub-assembly can be adjusted.
Semi-submersible floating offshore wind vessel having a submersible hull comprising variable ballast pontoons
23.04.2025
Patent
Elektronische Ressource
Englisch
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