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Blade brush of wind turbine

A blade and rotor blade technology, applied in the field of wind turbine blades, can solve problems such as noise emission, and achieve the effects of reducing noise emission, improving noise emission performance, and being easy to manufacture

Inactive Publication Date: 2009-07-08
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, even a design optimized for low-noise operation still causes noise emissions, which in some cases are intolerable

Method used

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  • Blade brush of wind turbine
  • Blade brush of wind turbine
  • Blade brush of wind turbine

Examples

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Embodiment Construction

[0041] Reference will now be made in detail to various embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. For example, features illustrated or described as part of one embodiment can also be used on or be associated with other embodiments to yield still other embodiments. It is intended that the present invention cover such adaptations and variations.

[0042] figure 1 is a schematic diagram of a typical wind turbine. The wind turbine 100 comprises a tower 110 on top of which a nacelle 120 is mounted. Inside the nacelle housing is mounted a transmission system to which is connected a main generator (not shown). A hub 130 carrying three rotor blades 140 is mounted at one transverse end of said nacelle 120 . The rotor blades 140 are adjustable by a pitch drive, which is typically located in the hub 130 .

[0043] The basic configuratio...

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Abstract

The invention relates to a wind turbine blade brush and provides a rotor blade for a wind energy system. The rotor blade comprises a blade body with a rear edge and a front edge, and a plurality of bristles on the external surface of the blade body. The bristles are adhered in the vicinity of the rear edge of the blade body under typical circumstances and are used for reducing the noise caused by the air current near the blade during work.

Description

technical field [0001] The invention relates to a wind turbine blade having bristles or brushes arranged on one of its outer surfaces. The invention also relates to a wind energy system comprising such a wind turbine blade. Background technique [0002] In recent years, wind energy systems have gained increasing importance as an energy source. Because areas suitable for their economical operation are relatively scarce in some countries, the number of wind energy systems located close to densely populated areas is increasing. Since the operation of the wind turbines in the wind energy system generates noise, this causes various problems such as resistance of residents in neighboring areas and the like. While there are various sources that contribute to the overall noise emission of such systems, the air flow around the blades is known to be one of the major noise sources. This results in a typical "hissing" or "whooshing" sound, eg in the frequency range of 1 kHz. The lev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06
CPCY02E10/721Y02E10/72
Inventor S·赫尔K·克格勒W·多布林斯基
Owner GENERAL ELECTRIC CO
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