A floating wind turbine power generation system

Abstract

The invention discloses a floating wind power generation system, comprising: a wind power generation device, a tower, a supporting foundation and a mooring device; one end of the tower is connected to the wind power generating device, and the other end is connected to the supporting foundation connected; the supporting foundation is an arched structure, and the supporting foundation is floating in the water, and is used to support the tower and the wind power generating device, so that the wind power generating device floats on the water surface; the system The mooring device penetrates the supporting foundation and fixes the supporting foundation on the seabed, so that the supporting foundation, the tower and the wind power generation device are in a steady state. The present invention has good advantages not only in the stability of the floating state, but also in the economy of material cost and the convenience of installation and construction.

Description

technical field [0001] The invention relates to the technical field of offshore power generation, in particular to a floating wind turbine power generation system. Background technique [0002] With the wide application and promotion of green energy, more and more attention has been paid to offshore power generation technology, making wind farms not only develop from land to sea, but also from offshore to deep sea. Most of my country's offshore wind power plans are located in water depths less than 50m within the area. [0003] At present, fixed wind turbine foundations are mostly used in coastal tidal flats and shallow water, such as single piles, jackets, high pile caps, etc.; offshore floating wind turbine foundations are mostly used in deep offshore water depths, such as single column type and semi-submersible type. , tension leg pose, etc. Compared with the friendly sea environment in Europe, my country's waters are moderately deep, and offshore wind resources are unst...

AI Technical Summary

Problems solved by technology

Compared with the friendly sea environment in Europe, the water depth in my country's sea area is medium, and the offshore wind resources are unstable and often accompanied by typhoons. As a result, there will be some problems in the use of floating wind turbine foundations commonly used in the market in my country's sea area, such as single column type The demand for water depth is too large, which does not match the transitional water depth in my country (water depth less than 50m); semi-submersible connecting rods are large in size, flexible and easy to deform, and conventional mooring cannot effectively control the movement of floating foundations with waves; tension leg type The mooring equipment production and installation technology is not yet mature in China

[0004] In addition, due to the special environmental conditions such as deep sea, deep wind and waves, conventional tower-type wind turbines are subjected to frequent sway, surge and heave movements, the bending moment and shear force at the bottom of the tower are concentrated and the structural fatigue strength is high, so the tower structure The size is usually increased and thickened, which brings about an increase in material costs, resulting in a large gap between the cost of offshore power generation and the cost per unit of electricity for grid parity

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