Frequency modulation damper, wind generating set and frequency modulation method of frequency modulation damper

A technology of wind turbines and dampers, which is applied in the direction of shock absorbers, shock absorbers, mechanical equipment, etc., can solve the problems of additional cost and implementation difficulty, and achieve the effects of simple structure, easy operation, and low cost

Active Publication Date: 2021-03-30
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these two frequency modulation schemes will increase the cost and implementation difficulty in process and structure

Method used

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  • Frequency modulation damper, wind generating set and frequency modulation method of frequency modulation damper
  • Frequency modulation damper, wind generating set and frequency modulation method of frequency modulation damper
  • Frequency modulation damper, wind generating set and frequency modulation method of frequency modulation damper

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Embodiment Construction

[0032] Embodiments of the present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. In the drawings, the same reference numerals denote the same components throughout. The figures may not be drawn to scale, and the relative size, proportion and depiction of elements in the figures may be exaggerated for clarity, illustration and convenience. In addition, in order to clearly show the relationship between parts or the internal structure, etc., in the partial diagrams, some members are omitted, and in addition, in the partial diagrams, some members (for example, figure 1 The liquid container in 10, Figure 5 The housing 31) in is shown transparent.

[0033] The following will refer to Figure 1 to Figure 8 A tunable damper according to an embodiment of the present invention is described.

[0034] like figure 1 As shown, the tunable damper according to the present invention includ...

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Abstract

The invention provides a frequency modulation damper, a wind generating set and a frequency modulation method of the frequency modulation damper. The frequency modulation damper comprises a liquid container, cantilevers, a mass body and a liquid density adjusting device, wherein the liquid container is used for containing liquid, and the liquid contains positive and negative ions; first ends of the cantilevers are used for being connected to an external lifting point; the mass body is fixedly connected with second ends of the cantilevers and can suspend in the liquid in the liquid container and swing in the liquid; and for the liquid density adjusting device, by adjusting the electric field where the liquid is located, the ion concentration, in the moving area of the mass body, of the liquid is changed, so that the density of the liquid is adjusted. According to the frequency modulation damper, the wind generating set and the frequency modulation method of the frequency modulation damper, the limitation of the damper application frequency caused by the arm length of the damper can be improved, the frequency of the damper can be adjusted according to, for example, the change of theinherent frequency of a vibration reduction building of the wind generating set, and then the optimal damping effect is achieved.

Description

technical field [0001] The invention relates to a frequency modulation damper, a wind power generating set and a frequency modulation method of the frequency modulation damper. Background technique [0002] The pendulum damper is a damper that has been widely used in various buildings. For example, in the wind power generator set, the pendulum damper can be used to reduce vibration and add resistance to the unit. [0003] Generally speaking, in the pendulum damper, designing the frequency of the single pendulum between 0.95 and 1.05 times the natural frequency of the building to be damped can achieve a relatively ideal vibration damping effect. [0004] In the case of small angle swing, the frequency formula of the pendulum of the pendulum damper is Among them, g is the acceleration due to gravity, and l is the length of the swing arm. It can be seen from the formula that only the length of the swing arm is adjustable. Therefore, the main means to adjust the frequency of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/10F16F9/32
CPCF16F9/10F16F9/32Y02E10/72Y02B10/30
Inventor 邢赢徐志良高杨
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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