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Optimization design method for blade layering of wind turbine with horizontal shaft

A technology of optimal design and intelligent optimization algorithm, applied in computing, special data processing applications, instruments, etc., can solve problems such as difficult to optimize design and long design time

Active Publication Date: 2015-04-22
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] Aiming at the problem that the currently used design method has a long design time and is not easy to be used for optimal design, the purpose of the present invention is to provide an optimal design method for horizontal axis wind turbine blade layup

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  • Optimization design method for blade layering of wind turbine with horizontal shaft
  • Optimization design method for blade layering of wind turbine with horizontal shaft
  • Optimization design method for blade layering of wind turbine with horizontal shaft

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Embodiment Construction

[0061] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0062] The optimal design method of blade layup under the extreme load condition of the present invention mainly comprises 7 steps: step S1, obtain the initial layup scheme of wind turbine blade, carry out parametric modeling to the initial layup of blade; Step S2, according to The blade layup after parametric modeling is obtained to obtain the layup information of each section in the spanwise direction of the blade; step S3, according to the layup information of each sec...

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Abstract

The invention relates to an optimization design method for blade layering of a wind turbine with a horizontal shaft. The method comprises the steps of: carrying out parametric modeling on the initial layering of a blade to obtain the layering information of the blade spreading toward all sections; calculating the density distribution and the rigidity distribution of the mass line of the blade; calculating the inherent frequency of the blade according to the density distribution and the rigidity distribution of the mass line; calculating the minimum limit safety factor and maximum blade tip offset of the blade according to limit load distribution of all sections of the blade and the structure characteristic parameters of the blade; judging whether the inherent frequency, the minimum limit safety factor and the maximum blade tip offset of the blade meet the constrain conditions; and optimizing the layering of the blade by adopting an intelligent optimization algorithm, to obtain the optimal blade layering scheme. The method has the advantages that the layering of the different blades are optimized, changing the parameter of the layering needing optimization design according to different design targets and requirements, design is fast in speed, the optimized layering can be directly used for producing practical blades, and the like.

Description

technical field [0001] The invention relates to the technical field of design of horizontal-axis wind turbine blade layup, in particular to a method for predicting and calculating the ultimate load of a horizontal-axis wind turbine and an optimal design method for wind turbine blade layup under extreme load conditions. technical background [0002] Modern large-scale wind turbines are mainly based on the structure of the horizontal axis. As one of its key components, the performance of the blade is directly related to the wind energy conversion efficiency and manufacturing cost of the entire wind turbine. However, the current horizontal axis wind turbine blades are mainly made of composite material laminates. Therefore, it is of great significance to carry out the optimal design of wind turbine blade layup to reduce the cost of wind turbines and improve the reliability of blades. [0003] The layup design of wind turbine blades needs to consider many design requirements, su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 廖猜猜石可重赵晓路徐建中
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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