Floating Wind Turbine Structures

Abstract

Floating wind turbine structure comprising a socket member (20) provided with one or more anchors (25, 27, 28) anchored to the seabed to support one or more connected to a drive motor or generator A plurality of wind turbines (1). The wind turbine is arranged on a substantially triangular float arrangement consisting of hollow tubes (21, 22) at a mutual angle and with increasing mutual distance in the downward direction And down into the sea. A hollow arcuate lower part / cross part (23) is arranged on the lower end of the float device tubes (21, 22). A reinforcement (24) is arranged on the upper part of the float device. Said cross member (23) is partially filled with liquid and has a flow restricting plate inside it, which slows the flow of liquid from one end of the cross member to the other during increasing and decreasing inclination.

Description

technical field [0001] The present invention relates to a floating wind turbine structure. Background technique [0002] A floating wind turbine is a wind turbine mounted on a floating structure located in the sea, typically deep sea, to enable the turbine to generate electricity at depths where a foundation mounted on the seabed cannot be used. Wind farms protruding far out into the ocean have the advantage of reducing visual pollution and providing better suitability for fishing and shipping routes. Another advantage is that the wind in the ocean is generally stronger and increases the potential power generation per unit. [0003] One known example of a floating wind turbine assembly is Statoil's Hywind concept. The floating structure is made of steel columns filled with water and rock ballast. It extends 100 meters below sea level and is anchored to the seabed by 3 anchors. The aim is to provide a competitive sea-based wind turbine concept that can be positioned in de...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this construction is that the propeller is provided with an expensive and complex torque controller (pitch controller) to enable twisting of the flaps under increased wind loads to reduce the risk of damage or failure

This configuration provides less pressure drop than the configuration described in US Patent No. 1,816,971A, but will result in turbulent flow behind the helical wing member and lack of better wind energy utilization

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