Manufacturing method of anchor foundation for floating wind turbine

1. The utility model belongs to the basic technical field of offshore wind power, and relates to an anchor foundation suitable for floating wind turbines.

Background technique:

2. At present, clean wind energy resources have gradually become the focus of new energy development; compared with onshore wind power, offshore wind power is more stable, close to the coastal areas where electricity is concentrated, and has a longer annual utilization time. The current offshore wind power foundation is mainly a fixed structure in the shallow sea area, but as the offshore wind power resources available for development become less and less, wind farms are gradually developing into the deep sea area. In the sea area with a water depth of 50m or more, the construction of a fixed foundation is difficult and the cost is too high. Floating fans are a better choice. The principle of the floating wind turbine is simple. The wind turbine is installed on a floating platform and fixed on the seabed anchored foundation through multiple anchor cables. There are three common types of bottom support platforms for offshore floating wind turbines: semi-submersible, spar and tension leg. The bottom of the semi-submersible platform has a distributed pontoon structure, which can generate a restoring moment against the movement of the platform when the wind turbine is tilted, and it is applicable to a wide range of water depths. The center of gravity of the spar platform is designed to be much lower than the center of buoyancy. When the platform is tilted, a restoring force couple can be generated between the center of gravity and the center of buoyancy. The applicable water depth is usually greater than 100m. The tension leg platform is similar to the "up and down tension" structure. The vertical downward mooring tension balances the upward buoyancy of the floating body, but its installation process is more complicated and expensive.

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