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Floating type offshore wind turbine base and positioning system thereof

A wind turbine foundation and positioning system technology, applied in the direction of basic structure engineering, building types, buildings, etc., can solve the non-linear restoring force and displacement characteristics of steel catenary mooring cables, and the construction cost of fixed offshore wind turbines High, fixed foundation cost rises linearly and other issues, to achieve the effect of compact structure, low cost, and increased damping

Active Publication Date: 2012-05-02
XINJIANG GOLDWIND SCI & TECH
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AI Technical Summary

Problems solved by technology

[0006] 2. With the increase of water depth, the cost of fixed foundation rises linearly, which is not suitable for the development of offshore wind power in sea areas with a water depth of more than 50 meters
[0010] 4. The construction cost of fixed offshore wind turbines is higher than that of floating offshore wind turbines
The catenary mooring cable has a large inclination angle at the top of the position where it is connected to the wind turbine foundation, and the horizontal restoring force on the platform is small. Only when the platform has a large horizontal deviation, will it produce a large horizontal restoring force As a result, the restoring force and displacement characteristics of steel catenary mooring cables are nonlinear, which has a delayed effect on the wind turbine foundation.

Method used

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  • Floating type offshore wind turbine base and positioning system thereof
  • Floating type offshore wind turbine base and positioning system thereof
  • Floating type offshore wind turbine base and positioning system thereof

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Embodiment Construction

[0048] Now, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. In the drawings, the same reference numerals will refer to the same parts throughout.

[0049] figure 2 is a schematic schematic diagram illustrating a positioning system for offshore floating wind turbine foundations according to an exemplary embodiment of the present invention.

[0050] Such as figure 2 As shown in , the positioning system for offshore floating wind turbine foundation according to an exemplary embodiment of the present invention may include at least three catenary wires 1, one end of the at least three catenary wires 1 is respectively connected to the wind turbine foundation 2, and the at least The other ends of the three catenary wires 1 are respectively connected to the sea...

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Abstract

The invention provides a floating type offshore wind turbine base and a positioning system of the floating type offshore wind turbine base. The positioning system comprises at least three catenaries, wherein one end of each catenary is respectively connected with a wind turbine base, another end of each catenary is respectively connected with seabed, so that the force of the wind turbine base can be balanced; and the positioning system further comprises a tensioning wire, wherein the tensioning wire extends to the seabed so as to be connected with the seabed along the direction which is in parallel with the lengthways centre line of the wind turbine base from the bottom of the wind turbine base. The floating type offshore wind turbine base with the positioning system structure is reliable and simple and low in cost, so that the running amplitude of the whole floating type offshore wind turbine base can be effectively reduced.

Description

technical field [0001] The invention belongs to the field of offshore wind power generation, and in particular relates to an offshore floating wind turbine foundation and a positioning system thereof. Background technique [0002] Compared with the construction of land wind farms, offshore wind farms have to face the test of multiple loads such as wind, waves and currents, the environmental conditions are more complex, technology development is more difficult, and they face many new challenges. Currently, tidal flat wind farms in intertidal zones and subtidal zones and offshore wind farms, these offshore wind farms with a water depth of no more than 50 meters usually adopt fixed foundation structures, mainly including gravity foundations, single pile or multi-pile foundations, and jackets. foundation, negative pressure bucket foundation, etc. [0003] In 2011, the National Energy Administration and the State Oceanic Administration jointly formulated and promulgated the "Imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/44E02D27/42E04H12/20
Inventor 朱海飞李荣富石磊黄国燕
Owner XINJIANG GOLDWIND SCI & TECH
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