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a wind turbine

A technology for wind turbines and wind turbines, applied in the field of wind turbines and horizontal axis wind turbines, can solve the problems of increased engineering volume and transportation volume, and achieve the effect of reducing the weight of the tower and increasing the ability to resist strong winds

Inactive Publication Date: 2015-11-25
李泽宇
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of tower will undoubtedly increase the amount of engineering and transportation.

Method used

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Embodiment Construction

[0018] combine figure 1 , if the anti-fall front cable 4 and the anti-fall rear cable 8 are not installed, then figure 1 The structure shown is the most widely used upwind wind turbine at present. It includes a wind wheel 1 formed by installing blades 7 on a hub, a nacelle assembly 2, and a tower 3 assembled from three steel cylinders. The lower end of the tower frame 3 is fixed on the foundation, so that the tower frame forms a cantilever beam structure. During the power generation process, the wind force acts on the wind rotor 1 which is tens of meters or even hundreds of meters high. Obviously, the wind force exerts a large bending moment on the root of the tower and on the foundation. In order to withstand this bending moment, people have taken many measures, such as making the tower into a shape with a thick bottom and a thin top, especially when the tower with a truss structure is used, the lower part of the tower can be made thicker, but this measure is It is limited...

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Abstract

The invention discloses a wind turbine generator group which is used for wind power generation and belongs to a horizontal-axis wind turbine generator. The wind turbine generator group comprises a tower, inhaul cables, a cabin final assembly component and a wind wheel. The wind turbine generator group is characterized in that connecting points between a layer of inhaul cables and the tower are located on the upper part of the tower, wherein the layer of inhaul cables is located on the top edge of the inhaul cables, and an upper layer of inhaul cables which are located on the same side of the wind wheel has two working states, a first working state is that during the power generation process, the inhaul cables are located at the positions of sweeping wind ranges of keeping out of vanes, a second state is that when the wind turbine generator stops because of a wind speed overrunning, the inhaul cables are located inside the sweeping wind ranges of the vane and penetrate between two vanes to pull tightly the tower. Force of the tower suffered can be greatly reduced, thus the tower of the wind turbine generator group is light in weight and convenient to transport. Cost of the wind turbine generator group can be reduced. Therefore cost of electric of per kilowatt hour is reduced.

Description

technical field [0001] The invention relates to a horizontal axis wind power generating set for generating electricity by wind power. According to the output mode, wind power generators can be divided into grid-connected power generators whose power can be integrated into the grid and decentralized wind power generators whose power can be used locally. In general, the former chooses large and medium-sized wind power Those who often choose small wind turbines. The invention relates to a wind power generating set belonging to large and medium-sized wind power generating sets. According to the structure, the wind power generating set can be divided into horizontal axis wind generating set and vertical axis wind generating set. The present invention belongs to the horizontal axis wind generating set. According to the structure of the tower, it can be divided into two types: those with cables and those without cables. The present invention belongs to wind turbines with cables. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D11/00F03D7/02
CPCY02E10/722Y02E10/723Y02E10/72
Inventor 李泽宇
Owner 李泽宇
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