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Omni-directional tuned mass damper for flexible tower drum of wind turbine generator system

A technology for wind turbines and tuned mass damping, which is applied to the installation/support of wind turbine configuration, wind power generation, and building components. It can solve problems such as difficult construction and high cost of vortex-induced vibration control, and achieve low production and assembly costs. The effect of simple installation and convenient maintenance

Active Publication Date: 2020-08-07
ZHEJIANG WINDEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly provides an omnidirectional tuning mass damper for flexible use of wind power generating sets with simple structure and convenient construction, which can effectively control the dynamic response of the wind-loaded vortex-induced vibration of the flexible tower and ensure the safety and reliability of the flexible tower. The device solves the technical problems existing in the prior art that the height of the tower increases, the cost of vortex-induced vibration control is high, and the construction is difficult.

Method used

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  • Omni-directional tuned mass damper for flexible tower drum of wind turbine generator system
  • Omni-directional tuned mass damper for flexible tower drum of wind turbine generator system
  • Omni-directional tuned mass damper for flexible tower drum of wind turbine generator system

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Embodiment 1

[0021] Such as figure 1 and figure 2 As shown, an omnidirectional tuned mass damper for a flexible tower of a wind power generating set of the present invention includes a counterweight mass 1 located in a square-shaped support frame 2, and the counterweight mass 1 is composed of several circular The upper and lower counterweight plates 11 are superimposed and fixed together, wherein the diameter of the counterweight plate 11 corresponding to the upper and lower ends of the counterweight mass 1 is smaller than the diameter of the counterweight plate 11 in the middle, and is coaxial on the bottom surface of the counterweight mass 1 A square horizontal support disc 6 is installed horizontally, and the horizontal support disc 6 is located between the large-diameter counterweight disc 11 and the small-diameter counterweight disc 11 at the lower end of the counterweight mass 1, such as Figure 4 As shown, a sliding plate 8 is coaxially fixed on the bottom surface of the counterwe...

Embodiment 2

[0023] It includes a tower body vertically supported on the ground, and two sets of support frames 2 with counterweight masses 1 are coaxially installed in the corresponding tower body cavity above the ground, and each set of support frames 2 consists of two support frames 2 Composition, two support frames 2 are superimposed and connected to each other, one set of support frames 2 is located at the top of the tower body, and the other group is located at the middle of the tower body. All the other parts are identical to Example 1.

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Abstract

The invention discloses a tuned mass damper, and provides an omni-directional tuned mass damper for a flexible tower drum of a wind turbine generator system. The omni-directional tuned mass damper forthe flexible tower drum of the wind turbine generator system guarantees the safe reliability of the flexible tower drum. The technical problems that in the prior art, the vortex-induced vibration control cost is high, and the construction is difficult along with the increase of the height of the tower drum are solved. The omni-directional tuned mass damper for the flexible tower drum of the windturbine generator system comprises counterweight mass blocks. The counterweight mass blocks are supported on the bottom surfaces of the interiors of supporting frames in a sliding mode, one end of each upper supporting spring and one end of each lower supporting spring are hooked at the upper end of the corresponding counterweight mass block and the lower end of the corresponding counterweight mass block respectively, the other end of each upper supporting spring and the other end of each lower supporting spring are horizontally hooked on the corresponding supporting frames, and therefore thecounterweight mass blocks can be kept in a stable supporting state.

Description

technical field [0001] The invention relates to a tuned mass damper, in particular to a flexible tower of a wind power generation unit with simple structure and convenient construction, which can effectively control the dynamic response of the wind-loaded vortex-induced vibration of the flexible tower and ensure the safety and reliability of the flexible tower. Omnidirectional tuned mass damper for barrel. Background technique [0002] With the development of large-scale wind turbines, the tower is the main load-bearing part of the wind turbine, and the height of the tower is getting higher and higher. When the height of the rigid tower is higher than 100m, its weight will increase exponentially. Increase, production and transportation costs increase, so the flexible tower solves the above problems well, it can not only meet the height requirements, but also effectively reduce production and transportation costs, but the natural frequency of the flexible tower is generally l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/20E04B1/98E04H9/02
CPCE04H9/021F03D13/20Y02E10/72Y02E10/728
Inventor 罗勇水庄剑余陈棋应有卓沛骏
Owner ZHEJIANG WINDEY