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Design method and device of blade extension device and electronic equipment

A design method and extension device technology, applied in design optimization/simulation, wind power generation, geometric CAD, etc., can solve problems such as wind speed reduction, wind farm revenue reduction, and feature mismatch.

Pending Publication Date: 2022-08-05
HUANENG CLEAN ENERGY RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, with the development and utilization of more and more wind farms, early wind farms were affected by the shading of surrounding wind farms, resulting in a decline in wind speed to varying degrees, so the income of wind farms also decreased.
[0004] In order to effectively solve the above-mentioned deficiencies due to the decrease of wind speed and the mismatch between the power generation performance of the unit and the characteristics of wind resources, the purpose of improving quality and efficiency can be achieved by increasing the diameter of the wind rotor, that is, by extending the blade tip, and the extension of the blade can also improve the blade. The sharp shedding vortex plays a role in reducing the induced resistance, so as to improve the power generation performance of the unit, but there is currently no solution that can realize the design of the blade extension device

Method used

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  • Design method and device of blade extension device and electronic equipment
  • Design method and device of blade extension device and electronic equipment
  • Design method and device of blade extension device and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] figure 1 This is a flow chart of a method for designing a blade extension device according to an embodiment of the present application.

[0064] like figure 1 As shown, the design method provided in this embodiment is applied to electronic equipment, which can be understood as a computer or server with data calculation and information processing capabilities, and the design method is used for various parameters of the extension device of the blade of the wind turbine. Calculations are performed to obtain the manufacturing parameters of the blade extension device. The blade extension device includes a blade extension section. Specifically, the design method of the blade extension section includes the following steps:

[0065] S1. Use the modified BEM theory to calculate the CP ~ λ corresponding relationship curve after the blade is extended.

[0066] This method is used to calculate the corresponding relationship curve to ensure that the calculated Cp value has an err...

Embodiment 2

[0135] Figure 4 This is a block diagram of a design device of a blade extension device according to an embodiment of the present application.

[0136] like Figure 4 As shown, the design device provided in this embodiment is applied to electronic equipment, which can be understood as a computer or server with data calculation and information processing capabilities, and the design device is used to adjust various parameters of the blade extension device of the wind turbine. Calculations are performed to obtain the manufacturing parameters of the blade extension device. The blade extension device includes a blade extension section. Specifically, the design device for the blade extension section includes a first calculation module 10 and a second calculation module 20 .

[0137] The first calculation module is used to calculate the CP-λ corresponding relationship curve after adding the blade extension section by using the modified BEM theory.

[0138] This method is used to ...

Embodiment 3

[0207] This embodiment provides an electronic device, which can be understood as a computer or a server with data computing and information processing capabilities, the electronic device includes at least one processor 101 and a memory 102, which are connected through a data bus 103 , the memory is used to store computer programs or instructions, and the processor is used to execute the corresponding computer programs or instructions, so that the electronic device implements the design method of the blade extension device provided in the embodiment.

[0208] The blade extension device includes a blade extension section. The design method is to use the modified BEM theory to calculate the CP-λ corresponding relationship curve of the blade extension section; take the annual power generation increase as the objective function, adopt the particle swarm multi-parameter algorithm, and based on CP ~λ corresponds to the parameters in the relationship curve, and performs self-optimizati...

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PUM

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Abstract

The invention discloses a design method and device of a blade extension device and electronic equipment, the method and device are applied to the electronic equipment, the blade extension device comprises a blade extension section and a blade extension winglet, and the design method and device specifically comprise the steps that a CP-lambda corresponding relation curve of the blade extension section is calculated by adopting a corrected BEM theory; and taking the annual energy output increase amount as a target function, adopting a particle swarm multivariate parameter algorithm, and based on parameters in the CP-lambda corresponding relation curve, carrying out self-optimization calculation on a plurality of extension section parameters of each section position of the blade extension section, so as to obtain aerodynamic configuration parameters such as chord length, torsional angle, relative thickness and airfoil type of each section of the blade extension section. Through the scheme, the design of the blade extension device can be realized.

Description

technical field [0001] The present application relates to the technical field of wind power, and more particularly, to a design method, device and electronic equipment for a blade extension device. Background technique [0002] As the main components of wind turbines to capture wind energy, the aerodynamic performance of blades directly determines the efficiency of wind energy conversion. In the subsonic flow field, the special design form of the blade airfoil makes the air flow form a complex three-dimensional effect at the trailing edge and blade tip position due to the pressure difference between the pressure surface and the suction surface during the rotation process, that is, a high-strength helical shape. The generated and diffused tip shedding vortices, along with the induced drag, increase the blade drag, resulting in loss of rotor torque and power. [0003] In the development process of wind energy utilization and wind turbine design technology, early wind turbines...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/27
CPCG06F30/17G06F30/27Y02E10/72
Inventor 张林伟虞小兵蔡安民林伟荣陈浩彭阁李力森李媛金强
Owner HUANENG CLEAN ENERGY RES INST