Method for evaluating performance of wing profile special for horizontal axis wind turbine

A technology for wind turbines and special wings, which is used in aerodynamic testing, testing of mechanical components, testing of machine/structural components, etc., and can solve problems such as the lack of a reasonable and complete method for evaluating airfoil performance.

Active Publication Date: 2012-09-19
中科国风科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

That is to say, the current wind turbine airfoil performance evaluation system has neither a complete parameter system to characterize the performance characteristics of the airfo

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  • Method for evaluating performance of wing profile special for horizontal axis wind turbine
  • Method for evaluating performance of wing profile special for horizontal axis wind turbine
  • Method for evaluating performance of wing profile special for horizontal axis wind turbine

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0039] The invention includes two related aspects: a special airfoil performance parameter system for wind turbines and a performance evaluation evaluation method. Further description will be made below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, the special airfoil performance evaluation parameter system for horizontal axis wind turbines includes: airfoil geometric parameter items, airfoil design point performance parameter items, airfoil non-design point performance parameter items, airfoil stall characteristic parameter items, airfoil The aerodynamic performance stability parameter item of the airfoil type, and the comparison weight coefficient item of the airfoil type.

[0041] Among them, the airfoil geometr...

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Abstract

The invention discloses a method for parameter testing the performance of a wing profile special for a horizontal axis wind turbine. The method comprises the following steps of: firstly, acquiring the wing profile and aerodynamic data thereof; secondly, analyzing the geometry parameter of the wing profile and dividing the wing profile into a thin type and a thick type according to different relative thicknesses; thirdly, obtaining a design point performance parameter item, a non-design point performance parameter item, a stalling characteristic parameter item and a stability parameter item of the wing profile; fourthly, comparing with the performance reference index of the wing profile to obtain a relative value and judging the performance level of the wing profile; and finally, endowing the wing profile with different weight coefficients according to different types of the wing profiles, and calculating an overall performance evaluation value of the wing profile based on the relative value to judge the performance level of the wing profile of the wind turbine. The invention can provide a judging basis and a method for selecting different wing profiles on different parts when wind turbine blades are designed or can be used for evaluating the performance of an intermediate wing profile during design and optimization of new wing profiles.

Description

technical field [0001] The invention belongs to the field of performance evaluation of airfoils of horizontal-axis wind turbines, and in particular relates to a method for evaluating the performance of airfoils at different parts of blades of horizontal-axis wind turbines. Background technique [0002] Under the background of global energy crisis and environmental deterioration, the wind power industry is developing rapidly. The wind turbine itself is also developing towards the direction of diversification of operating environment and larger capacity of single machine. From offshore to desert, from plains to hills, there are wind farms that have been built and operated, and the blades of wind turbines in newly built wind farms are becoming larger and larger. These trends place higher demands on wind turbines' ability to capture wind energy. The core component of a wind turbine to obtain wind energy is the blade, and the performance of the blade directly affects the effici...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01M9/00
Inventor 杨科李星星白井艳徐建中
Owner 中科国风科技有限公司
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