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Measuring of geometrical parameters for a wind turbine blade

A technology of geometric parameters and blades, which is used in the field of measuring the geometric parameters and characteristics of wind turbine blades, and can solve the problems of inaccurate placement and fixing of templates.

Inactive Publication Date: 2010-03-24
LM GLASSFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method is disadvantageous, because the measurement is inevitably associated with many uncertainties and the reasons for the errors it produces, among which these uncertainties are mainly caused by the inaccurate placement and fixing of the template on the section and by manual completion. program cause

Method used

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  • Measuring of geometrical parameters for a wind turbine blade
  • Measuring of geometrical parameters for a wind turbine blade
  • Measuring of geometrical parameters for a wind turbine blade

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Embodiment Construction

[0034] as shown in perspective figure 1 A blade 100 for a wind turbine is illustrated. In this case, the blade is arranged with its trailing edge up, but the measurements described below can equally be performed with blades arranged in other orientations. The measuring instrument 101 is arranged to have an unobstructed view of the blade tip 102 and the blade root 103 , as illustrated by the line of sight 104 .

[0035] Surveying instruments 101 may include, for example, basic conventional tools for surveying, such as a tape measure, a spirit level, a theodolite mounted on a tripod, and / or a total station, where the total station is an electronic theodolite (theodolite), an electronic distance meter (EDM) A combination of software running on an external computer. Some total stations don't even need mirrors or prisms to reflect distance measurements anymore, they are fully automatic and can interface with satellite positioning systems such as the Global Positioning System (GPS...

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PUM

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Abstract

This invention relates to methods for measuring geometrical parameters of a wind turbine blade, the method comprising placing a surveying instrument with a view to the root of the blade and measuringthe blade. Methods are described for measuring parameters such as the blade length, the blade bending, the twist and the alpha-angle of the blade. This is accomplished by the use of a surveying instrument by which is measured a number of points or markings on the root of the blade, the blade tip and / or some reference markings on the blade. The invention further relates to the use of a surveying instrument for measuring and / or marking geometrical parameters on a wind turbine blade and for measuring deformations of a wind turbine blade.

Description

technical field [0001] The present invention relates to a method for measuring geometric parameters and properties of a wind turbine blade. Background technique [0002] Most wind turbine configurations have many blades that are at least theoretically identical. This is important to ensure that the loads applied to all mechanical parts within the nacelle, such as shafts, hubs, gears, bearings and the like, are symmetrical. Likewise, in the case of forward curved blades, all blades on the same turbine must be pre-curved to the same degree. This is important because otherwise one blade that bends more up into the wind than the others will tend to slow down the other blades slightly, which in turn will cause an unbalanced load and less than optimal power extraction to the wind turbine. [0003] However, despite all considerations during the manufacture and handling of the blades, although the blades are made from the same mold with the same materials and tooling etc, there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00G01B11/00G01B11/02G01B11/03G01B11/16G01B11/24G01C15/00
CPCF05B2250/20G01B21/02F03D3/062G01C15/00F03D11/0091Y02E10/721Y02E10/74F03D17/00Y02E10/72
Inventor J·D·韦斯特高
Owner LM GLASSFIBER
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