Active load reduction large wind electric generator blade

A technology for wind turbine blades and wind turbines, which is applied to wind turbines, wind turbines, and control of wind turbines that are consistent with the wind direction, can solve the problems of wind turbine blades being easily broken, and the wind load is not effectively reduced. Avoid breakage, reduce wind loads, and achieve smooth transitions

Inactive Publication Date: 2020-07-31
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems that the wind load borne by the blades is not effectively reduced and the blades of the wind power generator are easily broken under strong wind existing in the existing method, and to provide a large wind power generator blade with active load reduction

Method used

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  • Active load reduction large wind electric generator blade
  • Active load reduction large wind electric generator blade
  • Active load reduction large wind electric generator blade

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 As shown, a large-scale wind generator blade for active load reduction in this embodiment includes a wind turbine blade 8 and a control circuit 9, wherein: it also includes a plurality of structural fans, and the structural fans are arranged in the wind turbine blade 8, The control circuit 9 is arranged in the wind turbine blade 8 and adhered to the inner wall. One end of the control circuit 9 is connected to several structural fans, and the other end is connected to the controller.

[0016] Such as figure 2 with image 3 As shown, the structural fan is composed of a fan blade 1, a fan blade fixing nut 2, a fan blade frame 3, a clamping screw 4, a motor 5, a bracket 6 and a structural frame 7, and the fan blade 1 passes through the fan blade fixing nut 2 Axially evenly installed on the fan blade frame 3; the fan blade frame 3...

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Abstract

The invention relates to an active load reduction large wind electric generator blade, and belongs to the technical field of wind power generation equipment. The technical problem that according to anexisting method, wind loads borne by blades are not effectively reduced, and under the strong wind, the wind electric generator blades are prone to breaking can be solved. The active load reduction large wind electric generator blade comprises a wind turbine blade and a control circuit, and further comprises multiple structure fans, the structure fans are mounted in the wind turbine blade, the control circuit is mounted in the wind turbine blade and is attached to the inner wall of the wind turbine blade, one end of the control circuit is connected with the structure fans, the other end of the control circuit is connected with a controller, and each structure fan comprises a fan blade, a fan blade fixing nut, a fan blade frame, a clamping screw, a motor, a support and a structure frame. The active load reduction large wind electric generator blade has the advantages that the pressure difference between a front swept wing area and a rear swept wing area of the wind turbine blade can beadjusted, and the load borne by a blade structure can be changed.

Description

technical field [0001] The invention relates to a large-scale wind power generator blade with active load reduction, which belongs to the technical field of wind power generation equipment. Background technique [0002] With the increase of the single installed capacity of large wind turbines, the size and weight of the blades are also increasing, and the starting power of the wind turbine and the probability of blade breakage at dangerous wind speeds will also increase. Existing solutions tend to increase the axial force of the shrink disk to suppress the rotation of the blade at dangerous wind speeds, and reduce the weight of the blade material and increase the strength of the material to reduce the self-weight of the blade and achieve the purpose of breaking the blade. The technical problem in the above solution is that the wind load borne by the blades has not been effectively reduced, and the probability of breaking under strong winds is relatively high. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/02F03D1/06F03D7/02F03D7/04F03D80/00
CPCF03D1/02F03D1/0633F03D1/0675F03D7/0276F03D7/042F03D80/00Y02E10/72
Inventor 孟杰
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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