Damping device and wind power generation tower using same

A vibration damping device and damping technology, applied in wind turbine components, wind power generation, wind turbines, etc., can solve the problems of shortening the fatigue life of the tower body, strength damage, loss, etc., to increase safety and stability, and overcome the anti-vibration performance. Poor, easy to make effects

Inactive Publication Date: 2013-02-13
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For wind power generation, excessive deformation and vibration of the tower body will affect the work of the transmission system in the nacelle and reduce the power generation efficiency of the wind turbine
Frequent vibration of the tower body will also shorten the fatigue life of the tower body, and may even lead to tower collapse accidents caused by strength damage or fatigue damage, which will bring immeasurable losses to the country and society
Due to the limited space inside the wind turbine nacelle and the tower body, the device that is really suitable for wind tower vibration control has not yet been developed

Method used

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  • Damping device and wind power generation tower using same
  • Damping device and wind power generation tower using same
  • Damping device and wind power generation tower using same

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0017] figure 1 shows the structure of the present invention, by figure 1 It can be seen that the wind power generation tower system of the present invention includes a foundation 1, a tower frame 2, a nacelle and an internal structure 3, a hub 4, blades 5, and a wall-attached differential viscoelastic damping device 6. The wall-attached differential viscoelastic damping device 6 is installed in the tower 2 . Generally speaking, four damping and vibration reduction devices 6 can be installed circumferentially and symmetrically at the same height of the tower 2, such as figure 2 shown. The best installation position is the half-height of the tower body. When the required passive control force is large, four damping and vibration reduction devices can also be symmetrically added at other heights of the tower 2 . The structure of the wall-at...

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Abstract

The invention discloses a damping device and a wind power generation tower using the damping device. The damping device comprises a first steel plate, a second steel plate and viscous-elastic materials; and the viscous-elastic materials are clamped between the first steel plate and the second steel plate. The damping device is installed in a wind power generation tower frame. Therefore, the damping device used by the wind power generation tower can better reduce and control the dynamic response of a tower body through the effective energy consumption of the viscous-elastic materials and overcome the defects that the prior and common wind power generation tower system has bad vibration resistance and is easy to damage under the action of strong wind, strong wave and other natural factors.

Description

technical field [0001] The invention belongs to the field of wind power generation, and relates to a damping and vibration reduction device and a high wind power generation tower using the device. Background technique [0002] With the continuous increase of energy consumption in human society, the massive exploitation of non-renewable energy such as coal, oil, and natural gas has put great pressure on the continuous supply of energy. Energy scarcity and environmental pollution have become a huge challenge faced by all countries in the world. Adjusting the energy structure and developing renewable energy and clean energy is an important way to solve the above problems. As a clean energy, wind energy has received widespread attention and has been vigorously developed at home and abroad in recent years. With the continuous increase of the installed capacity of wind power generators, the supporting structure of the unit - the wind power generation tower is also developing towa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F1/40F16F1/50F03D11/04
CPCY02E10/72Y02E10/728
Inventor 李杰张自立陈建兵白学远黄凯
Owner TONGJI UNIV
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