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blades for wind turbines

A technology for wind turbines and blades, which is applied to wind turbines, wind turbines, motors and other directions consistent with the wind direction, can solve problems such as increasing wind turbine costs, increasing wind turbine service requirements, and complexity.

Inactive Publication Date: 2018-05-29
陈维凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But this control mechanism is complicated to implement, increases the cost of the wind turbine, increases the service requirements on the wind turbine, etc.

Method used

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  • blades for wind turbines
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Embodiment Construction

[0031] It should be noted that in the following description, similar or identical reference numerals in different embodiments represent similar or identical features.

[0032] refer to figure 1 , shows a blade 100 for a wind turbine 200 . As will be apparent from the description below, the blade 100 has a cross-section that is dynamically effective in use so as to be able to accommodate different operating conditions such as those involving changes in wind speed, blade rotational speed, and the like.

[0033] It should be noted that the term “cross-section” referred to herein generally refers to the effective cross-section of the blade 100 .

[0034] Specifically, in figure 1 Two original structural views of the blade 100 are shown in . In this regard, the blade 100 includes a first structure 100a having a first cross-section and a second structure 100b having a second cross-section. It can be clearly seen that the first cross section is larger than the second cross sectio...

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PUM

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Abstract

This disclosure relates to a blade for a wind turbine, the blade having a dynamic effective cross-section in use.

Description

technical field [0001] The invention relates to blades for wind turbines. [0002] The invention has been developed primarily for use in wind turbines and will be described below with reference to this application. It should be understood, however, that the present invention is not limited to this particular field of use. Background technique [0003] Modern wind turbines include complex control mechanisms responsible for different operating variables. In particular modern wind turbines include feathering mechanisms to change the pitch of the blades of the wind turbine to change the cross-section of the blades. For example, during high-speed winds, the controller of the wind turbine may increase the pitch of the blades to reduce the force exerted on the blades, reduce the rotational speed of the blades, reduce the lateral force on the wind turbine, and the like. Alternatively, the controller of the wind turbine may reduce the pitch of the blades during low wind speed cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06
CPCF03D1/0641F05B2240/312Y02E10/72
Inventor 陈维凯
Owner 陈维凯