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Floating wind turbine and method for installation of such floating wind turbine

一种风力涡轮机、安装方法的技术，应用在安装/支撑风力发动机的配置、浮力方式、浮动建筑物等方向，能够解决没有公开配重物和TLP配置的组合、损伤浮体临时浮箱、复杂等问题，达到消除复杂挠性接头的需要、减少系绳预张紧、减小系绳力的效果

Inactive Publication Date: 2019-01-04
STIESDAL OFFSHORE TECH AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lubricants, coolants, and other fluids present special problems: bearings, gearboxes, hydraulics, seals in expansion tanks need to be specially designed to allow near-horizontal orientation
However, the problem remains that removal of the temporary pontoon after the TLP is attached to the tether is a complex offshore operation with a significant risk of damaging the buoy and / or the temporary pontoon during the operation
[0027] Combinations of counterweight and TLP configurations are not disclosed in the prior art

Method used

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  • Floating wind turbine and method for installation of such floating wind turbine
  • Floating wind turbine and method for installation of such floating wind turbine
  • Floating wind turbine and method for installation of such floating wind turbine

Examples

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Embodiment Construction

[0091] In the drawings, similar or corresponding elements are denoted by the same reference numerals.

[0092] figure 1 A floating wind turbine according to the invention is shown. The floating base hull 1 supports a wind turbine 2 for generating electricity. The counterweight 3 is suspended below the hull 1.

[0093] The wind turbine 2 includes a rotor 4 for extracting kinetic energy from the wind, a nacelle 5, and a tower 6 supporting the nacelle and the rotor. The nacelle 5 contains devices required to support the rotor and convert the rotational energy transferred by the rotor 4 into electrical energy.

[0094] The floating base hull 1 is partially submerged under the water plane 7 and is held in place by mooring lines 8.

[0095] figure 2 The floating base hull 1 and the counterweight 3 are shown in more detail. The floating base hull 1 can be implemented as a tetrahedron structure, which includes a central column 9, three diagonal supports 10, three radial supports 11 and thr...

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PUM

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Abstract

A floating wind turbine comprising a hull (1), a wind turbine (2) mounted on top of the hull (1) and a counterweight (3) suspended below the hull (1) by means of counterweight suspension means (18) isdescribed. Also a method for the installation is described. The counterweight (3) comprises one or more counterweight buoyancy tanks (17). When the internal volume of the buoyancy tanks (17) is filled with air, the total buoyancy of the counterweight (3) is close to or greater than its weight. Hereby it is capable of floating in a towing / maintenance position with moderate or no support in the vertical direction from the hull (1) or other vessels. During towing, the hull substantially has the character of a barge, substantially relying on a large waterplane area and shallow draft to maintainstability. When the buoyancy tanks (17) are partly or completely flooded with water, the counterweight (3) will sink to an installed position at a level determined by the counter- weight suspension means (18). In this position the counterweight acts as a keel, stabilizing the foundation. The counterweight suspension means (18) are separately or jointly capable of transfer- ring both forces and moments to the hull (1), thereby enabling the counterweight (3) to stabilize the hull (1) when the counterweight (3) is in its installed position.

Description

Technical field [0001] The invention relates to a floating offshore base for a wind turbine, and an installation and maintenance method for the floating offshore base. [0002] More specifically, the present invention relates to a floating wind turbine, which includes a hull, a wind turbine installed on the upper part of the hull, and a counterweight suspended on the lower part of the hull by means of a counterweight suspension device. [0003] The present invention also relates to a method for installing a floating wind turbine. The floating wind turbine includes a hull, a wind turbine installed on the upper part of the hull, and a counterweight suspended on the lower part of the hull by means of a counterweight suspension device. [0004] The present invention also relates to a maintenance method of a floating wind turbine. The floating wind turbine includes a hull, a wind turbine installed on the upper part of the hull, and a counterweight suspended on the lower part of the hull by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/25B63B35/44
CPCY02E10/727B63B21/502B63B2035/446F05B2240/93F03D13/25Y02E10/72B63B77/10B63B35/44B63B2207/02
Inventor 亨利克·斯蒂伊斯达
Owner STIESDAL OFFSHORE TECH AS
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