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Fan tower load shedding method based on separated engine room

A wind turbine tower, separate technology, applied in the field of reducing tower vibration and reducing wind turbine tower load, can solve the problem of reducing tower load and so on

Inactive Publication Date: 2013-12-18
BEIJING NEGO AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is currently no way to reduce tower loads by changing the nacelle structure

Method used

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  • Fan tower load shedding method based on separated engine room
  • Fan tower load shedding method based on separated engine room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Specific embodiments will illustrate the present invention in detail.

[0013] figure 1 It shows a schematic diagram of the structure of the detached nacelle for reducing the load of the tower, and shows a specific embodiment of the present invention.

[0014] The separated cabin is composed of a sliding mass 3 and a fixed mass 4, the sliding mass 3 slides on the fixed mass 4 through the slide rail 5 at the bottom, and the bottom slide rail is regularly lubricated to reduce friction; figure 2 It is a partial schematic diagram of the slide rail, wherein the six sliders of the slide rail such as 13 are connected to the bottom of the nacelle sliding mass 3 and slide on the slide rail bases 14 and 15; the sliding mass part 3 is mainly composed of the wind wheel rotor 1 and the hub 2 , low-speed shaft 8, gearbox 9, high-speed shaft 10, and generator 11, and the fixed mass block 4 is composed of the nacelle; the sliding mass block 3 and the fixed mass block 4 are connected ...

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PUM

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Abstract

A fan tower load shedding method based on a separated engine room is characterized in that by means of the design of two mass blocks of the separated engine room, the two mass blocks include a sliding mass block formed by a rotor, a hub, a transmission system and a generator and a fixed mass block formed by the engine room, the sliding mass block slides on the fixed mass block through a slide track, and the two portions are connected through an elastic damping device. By means of the method, when a wind turbine vibrates forwards and backwards because wind wheel thrust changes, relative movement of the sliding mass block is caused through stretching and shrinking of the elastic damping device, and an elastic damping system of the two mass blocks is formed. The purpose of reducing tower load and tower vibration is achieved by absorbing the tower vibration energy through a damping characteristic.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a method for reducing the load of a fan tower and reducing the vibration of the tower. technical background [0002] At present, the widely used wind power generators often cause tower vibration due to the influence of their own structure and external environment during operation. With the increase of the unit capacity of the wind turbine, the height of the tower is also increasing, and the tower of the large wind turbine has exceeded 100m; the increase of the height of the tower leads to the increase of the alternation and randomness of the tower load, which intensifies the damage of the tower. vibration. [0003] The tower is an important part of the wind turbine, and it supports the nacelle, the wind wheel and other components. The vibration of the tower will increase the mechanical load of the tower and other mechanical components, reduce the mechanical stre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00F16F15/22
Inventor 贾利民刘展雷涛
Owner BEIJING NEGO AUTOMATION TECH
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