Wind turbine blade damping device capable of resisting strong wind

A technology of wind turbine blades and damping devices, which is applied in the field of wind turbine blades and can solve problems such as poor stability of wind turbines, unstable wind speed, uneven wind load on wind turbine blades, etc.

Pending Publication Date: 2020-05-19
INNER MONGOLIA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The natural wind intensity in Northwest China is relatively strong, and the wind speed shows a tendency to be unstable, ...

Method used

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  • Wind turbine blade damping device capable of resisting strong wind
  • Wind turbine blade damping device capable of resisting strong wind

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Embodiment Construction

[0018] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined in the present application.

[0019] Such as figure 1 As shown, a wind turbine blade damping device capable of resisting strong wind provided by the present invention includes a connecting shaft 2 arranged on the main shaft 3, a blade 1 arranged on the connecting shaft 2, and is used to realize the shock absorption of the connecting shaft 2 The primary shock absorbing mechanism and the secondary shock absorbing mechanism, wherein, the primary ...

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Abstract

The invention provides a wind turbine blade damping device capable of resisting strong wind. The device comprises a connecting shaft arranged on a main shaft, blades arranged on the connecting shaft,primary damping mechanisms and a secondary damping mechanism, wherein the primary damping mechanisms and the secondary damping mechanism are used for realizing damping of the connecting shaft, the primary damping mechanisms are arranged on two sides of the connecting shaft, the secondary damping mechanism is arranged at the tail end of the connecting shaft, the primary damping mechanisms are in contact type damping, and the secondary damping mechanism is non-contact type damping. According to the device, under the effects of variable turbulent wind and strong wind, the damping protection effect can be carried out on a wind turbine blade, automatic unloading is achieved through an internal connection mode combining with a contact type and a non-contact type, the over-fatigue phenomenon of the wind turbine blade under various operating conditions is avoided, an important role of prolonging the operating life of the wind turbine blade is played, and the probability of accidents is reduced.

Description

technical field [0001] The invention mainly relates to the relevant technical field of wind turbine blades, in particular to a wind turbine blade damping device capable of resisting strong winds. Background technique [0002] Wind turbine blades are important components for wind turbines to receive and convert wind energy. Under the action of strong winds, the safety of wind turbines under strong wind conditions should be given sufficient attention. With the increase of service life, wind turbines are faced with problems such as blade aging. The natural wind intensity in Northwest China is relatively strong, and the wind speed shows a tendency to be unstable, resulting in uneven wind loads on the blades of the wind turbine, so the stability of the wind turbine during operation is poor. Damage to wind turbine blades under the action of strong winds abounds. [0003] Wind turbine blades are developing in a larger and softer direction, so the operating stability of the blades...

Claims

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Application Information

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IPC IPC(8): F03D1/06F03D80/00F16F15/02F16F15/03F16F15/04
CPCF03D1/065F03D80/00F16F15/022F16F15/035F16F15/04Y02E10/72
Inventor 田康琪宋力焦晓峰李晓波汤维贵冯瑞陈永艳田瑞
Owner INNER MONGOLIA UNIV OF TECH
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