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A design method for local efficiency enhancement of modular wind turbine blades

A technology for wind turbine blades and a design method, which is applied to wind turbines, mechanical equipment, engines, etc., can solve the problems that wind turbine blades cannot be optimized as a whole, improve wind energy utilization efficiency, etc. coefficient, quick effect

Active Publication Date: 2020-12-15
北京博比风电科技有限公司
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Problems solved by technology

[0004] In view of the defect that the existing wind turbine blades cannot be overall optimized to improve the efficiency of wind energy utilization, the present invention provides a local efficiency-enhancing design method for modular wind turbine blades, thereby solving the problem of efficiency enhancement of existing wind turbine blades

Method used

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  • A design method for local efficiency enhancement of modular wind turbine blades
  • A design method for local efficiency enhancement of modular wind turbine blades
  • A design method for local efficiency enhancement of modular wind turbine blades

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Embodiment Construction

[0021] like Figure 1 ~ Figure 3 As shown in the present invention, a root box design method in a local synergistic design method for a modular wind turbine blade, the steps mainly include:

[0022] (1) UG software is used as the platform, and the existing wind turbine blade ① is used as the reference shape to implement modeling. First, find the position with the largest chord length on the blade and set it as the end position ② of the root box in the span direction and 1.5~ from the bottom. The position of 3 times the bottom diameter is set as the starting position of the root box ③, and the leaves between the two positions are taken as the research object to carry out the root box design;

[0023] (2) The root box generally adopts the form of half wrapping, and the leading edge of the airfoil of each control surface along the blade span still adopts the original leading edge of the blade. Firstly, the length of the root box along the blade chord direction is affected by the s...

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Abstract

The invention discloses a modularized local efficiency improving design method for a wind turbine blade. According to the main task, by means of a numerical calculation method, and by analyzing the distribution law of the wind energy utilization efficiency of the wind turbine blade, the part with the low conversion efficiency of the wind turbine blade is discovered, a modularized pneumatic efficiency improving component is designed in the corresponding position, and thus the wind energy conversion efficiency of the wind turbine blade is promoted. The theoretical and experimental analysis results show that the modularized local efficiency improving design method adopts the modularized design, so that transformation and mounting of an existing blade are facilitated; improvement is conductedaiming at the wind energy utilization weakness of the existing blade so that the wind energy utilization coefficient of the blade can be effectively promoted; and compared with a common blade efficiency improving method, the modularized local efficiency improving design method has the advantages of short design period and quick effect.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a local efficiency-enhancing design method for modular wind turbine blades. Background technique [0002] The wind turbine blade is the core component of the wind turbine, and the aerodynamic shape of the wind turbine blade determines the efficiency of the wind turbine to convert wind energy. In order to improve the power generation efficiency of wind turbines, optimizing the aerodynamic shape of wind turbine blades is an important way at the beginning of blade design. However, after the blade design is finalized, produced, and installed in place, it is no longer feasible to improve the efficiency of the wind turbine by optimizing the overall shape of the wind turbine blade. [0003] This patent uses numerical calculation methods as a means to analyze the distribution law of wind energy utilization efficiency of wind turbine blades, find the parts with low efficien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D80/00
CPCY02E10/72
Inventor 李荣
Owner 北京博比风电科技有限公司
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