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Fan tower load shedding method based on damping devices

A technology of fan tower and damping device, which is applied in the field of wind turbines to reduce tower load and suppress tower vibration

Active Publication Date: 2013-12-18
北京能高普康测控技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method puts high demands on the control system and devices

Method used

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  • Fan tower load shedding method based on damping devices
  • Fan tower load shedding method based on damping devices
  • Fan tower load shedding method based on damping devices

Examples

Experimental program
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Embodiment Construction

[0014] Specific embodiments of the present invention will describe the method of the present invention in detail.

[0015] figure 1 It is a schematic diagram of a wind turbine installed with a tower load reduction device. The wind turbine installed with a tower load reduction device includes a wind rotor rotor 1, a hub 2 on which the rotor is installed, and a nacelle 3 installed with a transmission system and an electrical system. The tower frame of structure 4, tower base 5. Wherein the tower load reduction device 6 can be installed at different height positions of the tower.

[0016] figure 2 A specific embodiment of the invention is shown. The tower load reduction device 6 is installed on the top of the tower. A protective support device 8 is horizontally installed on the inner wall 7 of the tower tube. The protective support device 8 is in the form of an annular baffle, and is horizontally installed on the inner wall of the tower tube by means of welding, riveting, bo...

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Abstract

A fan tower load shedding method based on damping devices is characterized in that a protection supporting device is horizontally connected on the inner wall of a wind generating set tower drum, a plurality of elastic damping devices are symmetrically and uniformly mounted above the protection supporting device along different directions of the periphery of the inner wall of the tower drum and connected with the protection supporting device through sliding rails, and the elastic damping devices comprise mass blocks and equivalent damping springs. Kinetic energy of a tower can be reduced by the damping function of the elastic damping devices when the tower swings in a certain direction, so that vibration of the tower is effectively decreased, and the load of the tower is reduced.

Description

technical field [0001] The invention belongs to the field of wind power generation, and in particular relates to a method for reducing tower load and suppressing tower vibration by a wind power generating set. Background technique [0002] The tower is an important part of the wind turbine, and it supports the nacelle, the wind wheel and other components. Due to the influence of the structure of the wind turbine itself and the external environment, the wind turbine will be loaded by the tower during operation, causing the tower to vibrate. With the increase of wind turbine unit capacity, the height of the tower is also increasing. At present, the tower of large wind turbines has exceeded 100m; the increase of tower height leads to the increase of the alternation and randomness of the tower load, thus aggravating the rack vibration. [0003] The vibration of the tower is mainly the first-order vibration in the front-back direction and the first-order vibration in the left-r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/00F03D11/00
CPCY02E10/72
Inventor 贾利民刘展雷涛
Owner 北京能高普康测控技术有限公司
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