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A semi-fixed offshore wind turbine foundation

An offshore wind turbine, semi-fixed technology, applied in infrastructure engineering, construction, etc., can solve the problems of high cost, reduce the movement amplitude of the whole machine, unstable foundation, etc., and achieve the effect of ensuring stability and ensuring normal operation of power generation

Active Publication Date: 2018-11-06
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a semi-fixed offshore wind turbine foundation, which can effectively reduce the movement amplitude of the whole machine, and solve the difficulties in construction of fixed foundations in transitional sea areas, high cost, and poor foundation Instability and other issues

Method used

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  • A semi-fixed offshore wind turbine foundation
  • A semi-fixed offshore wind turbine foundation
  • A semi-fixed offshore wind turbine foundation

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specific Embodiment

[0035] Specific embodiments: such as figure 1 As shown, the semi-fixed offshore wind turbine foundation according to the exemplary embodiment of the present invention is composed of a wind turbine 11, a tower 12, a pontoon 13, a tension line 21 and a central suction caisson foundation 231. The lower pontoon 13 of the fan is hinged with the suction caisson foundation 23, which can ensure the vertical stability of the fan. The positioning system uses four tension wires 21, one ends of the four tension wires 21 are respectively connected to the top of the pontoon 13, and the other ends of the four tension wires are respectively connected to the seabed through a peripheral suction caisson foundation 232, Balance the force of the fan foundation and maintain the stability of the fan.

[0036] According to the semi-fixed offshore wind turbine foundation of the above-mentioned exemplary embodiment of the present invention, the bottom of the pontoon 13 and the central suction caisson 231 ...

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Abstract

The invention discloses a semi-fixed offshore wind turbine foundation. The semi-fixed offshore wind turbine foundation comprises a wind turbine, a tower drum, a floating drum, tensioning lines and a bottom semi-fixed foundation, wherein the wind turbine and the upper end of a sleeve are vertically arranged, the lower end of the sleeve and the upper end of the floating drum are vertically arranged, the tower drum and the floating drum are arranged on a straight line, the lower end of the floating drum and the bottom semi-fixed foundation are vertically arranged, one end of each of the plurality of tensioning lines is connected with the top of the floating drum, and the other ends of the plurality of tensioning lines are in uniform distribution connection with a seabed respectively by using the floating drum as the center. According to the semi-fixed offshore wind turbine foundation, the moving amplitude of the whole machine can be effectively reduced, so that the problems of difficulty in construction, high cost, instability and the like of a fixed foundation which is adopted in a transitional sea area are solved.

Description

Technical field [0001] The invention relates to the technical field of offshore wind power generation, and relates to a semi-fixed offshore wind turbine foundation form between a fixed and a floating foundation. Background technique [0002] So far, the research on floating wind turbines in my country is still in its infancy. The development of offshore wind farms is currently mostly located in shallow waters with a depth of 0-30 meters and within 20km from the coast. For example, Xiangshui Wind Farm and Donghai Bridge Wind Farm, etc., wind turbines use fixed foundations. According to the latest survey of offshore wind resources by the China Meteorological Administration, my country’s offshore areas within the water depth of 5m to 25m and the installed capacity of wind power at a height of 50m above sea level are about 200 million kW, and the transitional area within 25m to 50m and sea level The installed capacity above 70m is about 500 million kW, and the deep sea area above 100...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/42
CPCE02D27/42
Inventor 戴国亮朱文波龚维明
Owner SOUTHEAST UNIV
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