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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 wind motor combination, wind engine control, wind engine, etc., can solve the problems of cost increase and implementation difficulty, and achieve the effect of simple structure, low cost and easy operation

Active Publication Date: 2021-03-30
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • 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

[0033] 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.

[0034] The following will refer to Figure 1 to Figure 8 A tunable damper according to an embodiment of the present invention is described.

[0035] Such as figure 1 As shown, the tunable damper according to the present invention inc...

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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 used for containing liquid, a cantilever, a mass body and a liquid density adjusting device; the first end of the cantilever is used for being connected to an external lifting point; the mass body is fixedly connected with the second end of the cantilever and can be suspended in the liquid in the liquid container; and the liquid density adjusting device is used for adjusting the density ofthe liquid. 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 due to the arm length of the damper can be reduced, the frequency of the damper can be adjusted according to the change of the inherent frequency of a vibration reduction building of the wind generating set, and 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): F03D80/00F03D13/25F03D7/00F03D9/25E04B1/98E04H9/02
CPCF03D80/00F03D13/25F03D7/00F03D9/25E04H9/021Y02E10/727
Inventor 邢赢徐志良李双虎
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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