Heavy-draught multi-column floating foundation of offshore wind turbine

Abstract

A heavy-draught multi-column floating foundation of an offshore wind turbine comprises a wind wheel, a cabin, a tower, a tower transition structure, an upper peripheral column group, a lower peripheral column group, a peripheral column transition structure, a reinforcement structure, a hard cabin, heave plate structures, a soft cabin and a mooring system. The wind wheel and the cabin are mounted on the upper portion of the tower, the lower portion of the tower is connected with the upper portion of the tower transition structure, the lower portion of the tower transition structure is connected with the upper peripheral column group, the reinforcement structure is used for connection with the upper portion of upper peripheral column group which is positioned at the waterplane, the hard cabin is connected between the upper peripheral column group and the lower peripheral column group, the soft cabin is connected at the bottom of the lower peripheral column group, the heave plate structures are arranged at equal intervals on the lower peripheral column group, and the upper end of the mooring system is connected with the hard cabin while the lower end of the mooring system is connected with the seabed. The heavy-draught multi-column floating foundation of the offshore wind turbine not only has excellent motion performance but also is capable of well transferring operating load of the offshore wind turbine, construction cost is effectively reduced, and requirements on operational normality of the offshore wind turbine in an open sea deepwater area can be met.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and relates to an installation foundation for marine new energy utilization equipment, in particular to a deep-draft multi-column floating foundation suitable for offshore wind turbines. Background technique [0002] Wind energy is currently the fastest growing renewable energy with the greatest potential. The world’s available wind energy resources are very abundant. Resources are concentrated in deep water areas offshore. The wind energy resources of major offshore wind energy countries such as the United States, China, Japan, and Norway are all concentrated in non-shallow water areas with water depths exceeding 30m. As a new equipment to replace traditional fixed wind turbines, deep-water floating wind turbines have broad application prospects and have become a hot field of offshore wind energy research abroad. The United States, Europe and Japan have conducted extensive resear...

AI Technical Summary

Problems solved by technology

This technology is currently in the technical verification stage. If it is commercialized on a large scale, the cost of power generation will be high, so the practicability is poor

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