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Wind power generation system capable of saving land and reducing load

A wind power generation system and land-saving technology, which is applied to wind power generation, wind turbines, wind turbine combinations, etc., can solve the problems of high cost of wind power generation projects, complex high-altitude installation processes, and difficult installation, and can save land acquisition area, The effect of reducing project land acquisition cost and project construction cost

Pending Publication Date: 2021-09-21
HUANENG CLEAN ENERGY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For traditional wind turbines, the power generation part is installed on the top of the tower. The high-altitude installation process is complicated, the installation is difficult, time-consuming, and maintenance is difficult; the box-type substation is generally placed outside the tower, and land needs to be requisitioned separately
As a result, the cost of wind power generation projects at this stage is still relatively high

Method used

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  • Wind power generation system capable of saving land and reducing load
  • Wind power generation system capable of saving land and reducing load
  • Wind power generation system capable of saving land and reducing load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown in a section of the present invention derating a wind power generation system, comprising a blade, a hub, a nacelle spindle, the top of the bevel gear sets, the vertical axis, the bottom of the bevel gear sets, the bottom spindle, the generator, and change box tower.

[0025] A first bevel gear and the second bevel gear engaging the top of bevel gear set forming a top, a first bevel gear and the second bevel gear engaging the bottom of the conical bottom formed gearset.

[0026] The blade 1 is fixed to the hub 2, by adjusting the blade pitch system paddle pitch angle, and then control the wind blade a catch aerodynamic torque and pneumatic power.

[0027] 2 connected to the nacelle hub spindle 3, a driven rotary blade hub 2 so as to drive the main shaft 3 rotates in synchronization nacelle; nacelle 3 through the top of the main shaft 4 connected to the conical gear set vertical main shaft 5, the rotation of the spindle about the conversion of the nace...

Embodiment 2

[0036] like figure 2 As shown in Example 1 on the basis of the change gear transmission system of the belt, is connected via a belt between the spindle and the bottom of the nacelle spindle.

[0037] Further, the central tower is provided with a belt tensioner, a belt tension pulley is provided at least one group.

Embodiment 3

[0039] like image 3 Shown, based on Example 1 and Example 2, the generator 8 and the tank 9 also becomes vertical layered arrangement in the height direction of the tower, and the layers separated by dividing the support layer fixed bracket.

[0040] And land wind power generation system works derating of the present invention is: to move from the generator through the nacelle located at the top of the tower bottom of the tower, the nacelle to reduce weight, reduce the project costs lifting; while significantly reducing the load to the tower and wind turbine foundation requirements, further reducing construction costs. By box changes built into the tower, saving land acquisition area of ​​the construction of wind turbines and reduce the cost of land acquisition project. By the generator set and the change box built, reducing the length of the cable between the generator and the box changes, further reducing the material cost and installation cost of the project.

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Abstract

The invention discloses a wind power generation system capable of saving land and reducing load. A power generation part is arranged at the bottom of a tower drum, a bottom main shaft is connected with a power generator, a cabin main shaft is connected with blades through a hub, the cabin main shaft is connected with the bottom main shaft through a transmission mechanism, and a box transformer substation is arranged in the bottom of the tower drum and connected with the power generator. The generator is moved downwards from the cabin at the top of the tower drum to the bottom of the tower drum, so that the weight of the cabin is reduced, and the engineering hoisting cost is reduced; and meanwhile, the requirement of loads for the tower drum and a wind generation set foundation is greatly reduced, the engineering construction cost is further reduced, the land expropriation area for wind generation set construction is saved and the engineering land expropriation cost is reduced by arranging the box transformer substation in the tower drum, and the length of a cable between the generator and the box transformer substation is reduced by arranging the generator downwards and arranging the box transformer substation internally, and therefore, the material cost and the installation cost of engineering are further reduced.

Description

Technical field [0001] The present invention belongs to the technical field of wind power generation, particularly wind power generation system section relates to the derating. Background technique [0002] For conventional wind turbines, the power generation portion are mounted on top of the tower, altitude installation process is complex, difficult to install, time-consuming, difficult maintenance; tank placed outside the tower becomes generally requires a separate land acquisition. Resulting wind power project cost is still high at this stage. With the wind turbine impeller moving in the direction of large, high-capacity, drum tower, engineering and more urgent demand for further reducing the cost. Inventive content [0003] To solve the above problems, the present invention aims to provide a wind power generation system derating of the section, it can be placed in the bottom part of the tower at the power generation, while at the bottom of the box becomes built tower, thereb...

Claims

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Application Information

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IPC IPC(8): F03D80/80F03D13/20F03D9/25F03D15/10
CPCF03D80/88F03D80/82F03D13/20F03D9/25F03D15/10Y02E10/728Y02E10/72
Inventor 张庆张立英李芊邵振州程瑜
Owner HUANENG CLEAN ENERGY RES INST
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