A wind turbine tower with automatically adjustable damping properties

A technology for wind power generating sets and automatic adjustment, applied in wind power generation, installation/supporting configuration of wind turbines, building types, etc., can solve problems such as tower cost and adverse effects on reliability, increase reinforcement design, etc.

Active Publication Date: 2021-04-23
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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  • A wind turbine tower with automatically adjustable damping properties
  • A wind turbine tower with automatically adjustable damping properties
  • A wind turbine tower with automatically adjustable damping properties

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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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PUM

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Abstract

The invention discloses a tower frame of a wind power generating set that can automatically adjust the damping property. The tower frame of the wind generating set includes: a tower structure, an inner support shell structure, an air pump and a control system; the top end of the inner support shell structure and the bottom end are respectively connected with the inner wall of the tower structure to form a closed damping chamber; the damping chamber is filled with damping liquid; the bottom of the damping chamber is provided with a plurality of air bags connected with the air pump, The top of the damping chamber is provided with an exhaust hole; the tower structure is provided with an acceleration acquisition system; the control system is respectively connected with the acceleration acquisition system and the air pump, and is used to control the air pump to adjust the charge according to the acceleration measured by the acceleration acquisition system. The volume of the air bag can change the damping liquid height in the damping cavity. The invention can accurately adjust the frequency of liquid damping according to the actual vibration situation of the tower, and achieve the best vibration suppression effect. There is no need to manually adjust the damping fluid height, reducing the risk of damping adjustment deviation.

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 Patents(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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