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Tuning quality damper vibration damping control device for blower fan

A technology for tuning mass damping and control devices, which is applied in the control of wind turbines, wind turbines, machines/engines, etc., and can solve problems such as the inability to achieve synchronous rotation and direction adjustment of wind turbines, and the inability to fully exert the effect of TMD vibration reduction control.

Inactive Publication Date: 2008-11-12
SANY ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The above two TMD devices are applied in the wind turbine frame, and cannot realize synchronous rotation and direction adjustment with the yaw of the wind turbine against the wind. Therefore, the vibration reduction control effect of the TMD cannot be fully exerted.

Method used

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  • Tuning quality damper vibration damping control device for blower fan
  • Tuning quality damper vibration damping control device for blower fan
  • Tuning quality damper vibration damping control device for blower fan

Examples

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Embodiment Construction

[0083] The key point of the design of the tuning mass damper vibration reduction control device for wind turbines in the present invention is that the TMD can actively adjust the opposite direction as the wind direction changes, thereby ensuring the consistency between the vibration control direction of the TMD and the forced vibration direction.

[0084] The following describes the implementation in detail in conjunction with the accompanying drawings.

[0085] see figure 2 , which is a structural schematic diagram of a tuning mass damper vibration control device for a fan according to the present invention.

[0086] As shown in the figure, the wind turbine tuning mass damper vibration reduction control device according to this embodiment is set in the upper end tower 8 of the wind power generator, including a platform 1, a rotation adjustment device 2, a power device 3, and a mass assembly. into 4 and damper 5. For the position and connection relationship between the vari...

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Abstract

The invention discloses a tuning quality damper vibration reduction control device used in a wind turbine, which relates to tuning quality damper vibration reduction control technology. The invention is arranged inside a tower arranged at an upper end of a wind generator and comprises a platform, rotation adjusting devices, a power device, a quality block assembly and a damper arranged on the platform; the platform is fixed on the internal wall of the tower; the key design points of the invention are characterized in that: the power of the power device drives the quality block assembly to rotate through the rotation adjusting devices so that the components on the platform can rotate synchronously along with the yaw of the wind turbine. Opposite direction adjustment can be realized forwardly along with wind directions by the invention, thus controlling vibration amplitude to the utmost extent. Furthermore, based on MTMD vibration reduction mechanism, the invention also provides an MTMD technical proposal with a plurality of single TMDs arranged from top to bottom in sequence; the power device coaxially drives varied rotation adjusting devices, thus guaranteeing the synchronous rotation speed of each turntable and controlling the vibration of the tower within a frequency band scope caused by the rotation of wind wheels.

Description

technical field [0001] The invention relates to a vibration reduction control device for a tuned mass damper, in particular to a vibration reduction control device for a tuned mass damper for a fan. Background technique [0002] Tuned mass damper (TMD) uses the principle of resonance to transfer the vibration energy of the controlled structure body to the vibration control device (TMD), thereby reducing the impact of wind vibration and earthquake on towering structures. Influenced by the main body, TMD has been widely used at home and abroad (such as Shanghai Oriental Pearl TV Tower, Hefei TV Tower, Taipei 101 Building, etc.). [0003] Through theoretical calculation, finite element analysis and engineering application examples, it is shown that when the quality of TMD is appropriate, the frequency of the TMD damping control device is close to that of the controlled structural body, and the damping ratio of TMD is between 5% and 15%, the controlled towering Most of the vibr...

Claims

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Application Information

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IPC IPC(8): F03D7/00F03D11/00F16F15/00F03D80/00
CPCY02E10/722Y02E10/723Y02E10/72
Inventor 黄亮
Owner SANY ELECTRIC CO LTD
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