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Wind generating set tower capable of automatically adjusting damping properties

A wind power generation unit, automatic adjustment technology, applied in the direction of wind power generation, installation/supporting wind turbine configuration, building components, etc., can solve the problems of increasing reinforcement design, tower cost and adverse effects on reliability, etc., to reduce human labor , wide frequency range of vibration suppression, and the effect of improving efficiency

Active Publication Date: 2020-06-05
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For dampers with large mass and size, it is necessary to rearrange the internal structure of the tower and increase the reinforcement design, which will adversely affect the cost and reliability of the tower

Method used

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  • Wind generating set tower capable of automatically adjusting damping properties
  • Wind generating set tower capable of automatically adjusting damping properties
  • Wind generating set tower capable of automatically adjusting damping properties

Examples

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Comparison scheme
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Embodiment Construction

[0024] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, and are not intended to limit the protection scope of the present invention.

[0025] Such as figure 1 As shown, the present invention provides a wind turbine tower that can automatically adjust the damping property, which includes: a tower structure 1, an inner support shell structure 2 arranged at the middle and upper part of the tower structure 1, an air pump 5 and control system6. Such as figure 2 As shown, the tower structure 1 is a truncated conical structure; the inner support shell structure 2 includes a truncated conical connecting structure 21, a top plate 22 arranged on the top of the connecting structure 21 and connected to the inner wall of the tower structure 1, and a top plate 22 arranged on the connecting structure 21. The bottom end and the bottom plate 2...

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Abstract

The invention discloses a wind generating set tower capable of automatically adjusting damping properties. The wind generating set tower comprises a tower structure, an inner layer supporting shell structure, an air pump and a control system; the top end and the bottom end of the inner layer supporting shell structure are respectively connected with the inner wall of the tower structure to form aclosed damping cavity; damping liquid is injected into the damping cavity; a plurality of inflating bags connected with the air pump are arranged at the bottom in the damping cavity, and exhaust holesare arranged in the top of the damping cavity; an acceleration acquisition system is arranged on the tower structure; and the control system is connected with the acceleration acquisition system andthe air pump and is used for controlling the air pump to adjust the volume of the inflating bags according to the acceleration measured by the acceleration acquisition system so as to change the height of the damping liquid in the damping cavity. According to the wind generating set tower, the frequency of liquid damping can be accurately adjusted according to the actual vibration condition of thetower so as to achieve the optimal vibration suppression effect. The height of the damping liquid does not need to be adjusted manually, and the risk caused by damping adjustment deviation is reduced.

Description

technical field [0001] The invention relates to the field of wind power generating set towers, in particular to a wind power generating set tower that can automatically adjust damping properties. Background technique [0002] In order to improve the power generation performance of wind turbines, the height of the tower has been continuously increased. In the case of atmospheric turbulence, wind rotor rotation, blade pitch and yaw and other external load fluctuations, the tower will vibrate. Without the assistance of additional control strategies, the vibration of the tower needs to be attenuated by the damping of the structure itself, so as to Ensure the stability of the tower. [0003] The tower damping adjustment of wind turbines is a hot research direction, and the liquid damper is an effective way to adjust the tower damping. The liquid damper generally has a hollow cavity, and the damping liquid is injected into the hollow cavity, the damper and the tower vibrate toge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/20E04B1/98E04H9/02
CPCE04B1/98E04H9/021F03D13/20Y02E10/72Y02E10/728
Inventor 谢炜谢雪琼黄雄哲蒋勇
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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