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Semi-submersible wind power generation foundation platform and mounting method thereof

A technology for wind power generation foundation and wind power generation unit, which is applied in the directions of wind power generation, installation/support of wind turbine configuration, anchoring arrangement, etc. The effect of low maintenance cost, convenient installation and lower construction cost

Pending Publication Date: 2020-12-01
ZHEJIANG ZHENENG TECHN RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the foundation platform of the wind turbine has a complex structure, and the asymmetry of the wind turbine relative to the power generation foundation platform, the interchangeability between the column buoys and the mooring system is poor, and the construction cost is high

Method used

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  • Semi-submersible wind power generation foundation platform and mounting method thereof
  • Semi-submersible wind power generation foundation platform and mounting method thereof
  • Semi-submersible wind power generation foundation platform and mounting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1As shown, the semi-submersible wind power generation basic platform includes a basic structure platform, a wind turbine tower 4, a wind turbine 5, an umbilical cable 9 and a positioning system; the basic structure platform includes a column 1, a horizontal floating tank 2, and a central floating tank 3. Connect the buoyancy tank 6 and the heave plate 7. The central buoyancy tank 3 on the top of the basic structure platform is connected to the fan tower 4, and the top of the basic structure platform supports the facilities for controlling the balance device. Three columns 1 are perpendicular to the water surface, and the column 1 A horizontal buoyant tank 2 is provided between the central buoyant tank 3, and the lower parts of the three columns 1 are connected by connecting buoyant tanks 6. The bottom of the basic structure platform is in the form of an equilateral triangle, and the bottom of the central buoyant tank 3 is connected to the umbilical cord co...

Embodiment 2

[0053] Such as Figure 9 As shown, the installation method of the semi-submersible wind power generation base platform includes the following steps:

[0054] S1. As the anchoring device 10 at the bottom of the anchor chain (anchoring system 8), drive-in piles or suction anchors are used in advance.

[0055] S2. After the driven pile or suction anchor is installed, the anchor chain and cable are arranged on the seabed along the predetermined route. After the laying of the anchor chain is completed, the corresponding signs are made and the cable is discarded.

[0056] S3. The basic structure platform is built in the dock, and the basic structure platform is automatically floated out of the dock after it is built.

[0057] S4. Use a crane to install the wind turbine tower 4, the nacelle and the wind rotor (wind turbine 5) on the bank, and connect with the basic structure platform to form the foundation of the wind turbine.

[0058] S5. When the installed fan foundation is at a ...

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Abstract

The invention relates to a semi-submersible wind power generation foundation platform which comprises a foundation structure platform, a fan tower, a wind generating set, an umbilical cable and a positioning system. A center part at the top of the foundation structure platform is a center buoyancy tank, the upper portion of the center buoyancy tank is connected with the fan tower, and the wind generating set is arranged at the top of the fan tower. A stand column perpendicular to the water surface is arranged outside the central buoyancy tank at the top of the foundation structure platform, and a horizontal buoyancy tank is arranged between the stand column and the central buoyancy tank; the lower portions of the adjacent stand columns are connected through connecting buoyancy tanks, and heaving plates are arranged at the bottom ends of the stand columns. The bottom of the foundation structure platform is of a regular triangle structure. The bottom of the central buoyancy tank is connected with the umbilical cable connected with a seabed power line. The foundation platform has the beneficial effects that the foundation platform is simple and reasonable in structure, the wind generating set has symmetry relative to arrangement of the foundation structure platform, interchangeability of structural components and an anchoring system is high, standardization of the foundation platform structure is facilitated, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to an offshore semi-submersible wind power generation foundation platform and an installation method thereof. Background technique [0002] As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. With the development of onshore wind power resources, the high-quality wind power resources that can be developed in China are gradually decreasing. The potential development of offshore wind power is huge, and the coastal areas are economically developed and have a large energy demand. Therefore, it is necessary to actively develop offshore wind power projects. [0003] The advantages of offshore wind power: First, the offshore wind speed is relatively high and the annual utilization rate is high. The second is that the sea area is vast, allowing large-scale wind turbines, and the power generation capacity of a sing...

Claims

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Application Information

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IPC IPC(8): B63B35/44B63B21/50B63B75/00F03D13/25
CPCB63B35/44B63B21/50B63B75/00F03D13/25B63B2035/442B63B2035/446B63B2021/505Y02E10/72Y02E10/727
Inventor 施小华程永明沈洋何国栋储著宇林感寿春晖邬荣敏
Owner ZHEJIANG ZHENENG TECHN RES INST
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