Structural stability enhancing floating wind turbine foundation

A technology of structural stability and wind turbine foundation, applied in wind power generation, floating buildings, ship safety, etc., can solve the problems of difficulty in guaranteeing the stability of floating wind turbines, wind and wave interference, etc. The effect of improving durability

Pending Publication Date: 2018-06-05
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among the many foundation forms of wind turbines, the floating wind turbines that are only positioned by the moorin

Method used

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  • Structural stability enhancing floating wind turbine foundation
  • Structural stability enhancing floating wind turbine foundation
  • Structural stability enhancing floating wind turbine foundation

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[0017] The present invention will be further described in detail below in conjunction with the drawings.

[0018] Such as figure 1 As shown, the present invention provides a floating fan foundation with improved structural stability. The floating fan foundation includes a floating plate 1, a center column 2, a steel support, three shock-absorbing pontoons 4, and a shock-absorbing pendulum; Column 2 is located in the center of the triangular structure composed of three shock-absorbing buoys 4. A floating plate 1 is arranged above the center column 2, and a fan is installed above the floating plate 1. The shock-absorbing buoys 4 are equipment compartments 11, Ballast tank 12 and heave plate 17; equipment chamber 11 is used for the mechanical storage room for wind turbine power generation. Ballast tank 12 makes the center of buoyancy of the entire structure higher than the center of gravity through ballasting. The heave plate 17 is used to greatly reduce the structure Heave response...

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Abstract

The invention discloses a structural stability enhancing floating wind turbine foundation. The structural stability enhancing floating wind turbine foundation comprises a floating plate, a middle column, steel supports, tree shock absorbing buoys and a damping pendulum, wherein the central column is arranged in the center of a triangular structure formed by the three shock absorbing buoys, the above of the central column is provided with the floating plate, and the top of the floating plate is provided with a wind turbine; every shock absorbing buoy is composed of, sequentially from top to bottom, an equipment cabin, a ballast tank and a heaving plate, the equipment cabin serves as the mechanical storage chambers of power generation of the wind turbine, the ballast tank enables the buoyantcenter of the overall structure to be higher than the center of gravity through ballast, and the heaving plate is used for greatly reducing structural heaving response; steel supports are connected between every two shock absorbing buoys as well as between every shock absorbing buoy and the central column; the lower ends of the three shock absorbing buoys are all connected to the damping pendulum. The structural stability enhancing floating wind turbine foundation is connected to the seafloor through a tension type mooring system, and the tension type mooring system is composed of a lower anchoring end and an upper mooring cable. The structural stability enhancing floating wind turbine foundation can resist complex marine cyclic dynamic load to maintain long-term stability of an upper wind turbine tower.

Description

technical field [0001] The invention relates to an offshore wind turbine, in particular to a floating wind turbine foundation with improved structural stability. Background technique [0002] Wind energy is a pollution-free clean energy. my country has a vast ocean area and abundant offshore wind power resources. The conversion of this part of wind power into electricity will bring huge economic value and good social benefits. However, the complex marine environment has caused the current wind power industry to be mainly limited to offshore. If the energy map is to be developed to the ocean, many difficulties still need to be overcome, including how to design a wind turbine foundation that can withstand strong winds and waves. Among the many foundation forms of wind turbines, the floating wind turbines that are only positioned by the mooring system can be installed in farther sea areas and have great development prospects. Sex is hard to guarantee. Contents of the inven...

Claims

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Application Information

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IPC IPC(8): F03D13/25B63B35/44B63B21/50B63B43/14B63B43/04
CPCF03D13/22F03D13/25B63B21/50B63B35/44B63B43/04B63B43/14B63B2035/446Y02E10/727Y02E10/728Y02E10/72
Inventor 李奖胡钿钿钮家军江淇熙凌道盛
Owner ZHEJIANG UNIV
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