A wind turbine vortex generator

A vortex generator and wind turbine technology, which is applied to wind turbines, wind turbines that are consistent with the wind direction, and wind energy power generation, etc., can solve the problem of aerodynamic performance to be improved, and achieve a firm and reliable structure, strong pertinence, and improved use safety. Effect

Active Publication Date: 2021-12-10
ANHUI XINLT POWER TECH CONSULTING +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the relevant literatures that have been published, triangular fins are commonly used in vortex generators, but their aerodynamic performance still needs to be improved.

Method used

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  • A wind turbine vortex generator
  • A wind turbine vortex generator
  • A wind turbine vortex generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] see Image 6 In this embodiment, the wind turbine is an upwind horizontal axis wind turbine 1 , the blades 2 are connected to the hub 3 , the hub 3 is connected to the nacelle 4 through a rotating shaft, and the nacelle 4 is fixed on the tower 5 .

[0038] see figure 1 The blade 2 has a blade root 6, a blade top 7, a blade leading edge 8, a blade trailing edge 9, a cross-sectional airfoil 19, a suction surface 20 and a pressure surface 21, and a vortex generator is arranged on the suction surface 20 of the blade.

[0039] see figure 1 , figure 2 , image 3 with Figure 4 , the fins forming the vortex generator are set to be rectangular, and every two rectangular fins 11 form a vortex unit 10 in the shape of "eight" with the spanwise positioning line 13 of the vortex generator as axisymmetric; The surface of the suction surface 20 of type 19 and the distance from the leading edge 8 of the blade are 0.1c to 0.2c and the line formed is defined as the chord direction ...

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Abstract

The invention discloses a vortex generator for a wind turbine, which is provided on the suction surface of the blade. The spanwise positioning line is axisymmetric to form a vortex unit in the shape of "eight"; the rectangular fins are upright on the suction surface, and an independent adhesive layer is formed between each rectangular fin and the suction surface, so that each vortex unit can The positioning lines are spaced and evenly distributed along the chord direction from the blade root to the blade top on the surface. The invention adopts rectangular fins and optimizes the layout of the rectangular fins on the blades, thereby generating strong vortex and obtaining better aerodynamic performance.

Description

technical field [0001] The invention relates to a vortex generator for a wind turbine blade. Background technique [0002] A wind turbine is a power machine that converts the kinetic energy contained in the wind into the rotational mechanical energy of the blades and then into electrical energy. Wind turbine blades are the core components of wind turbines, and their aerodynamic performance is an important indicator to measure the quality of blades. [0003] With the development and progress of the wind power industry and the deepening of research, the capacity of wind power units continues to increase, the size of wind turbines continues to increase, and the blade shape of wind turbines is becoming more and more complex. Under the influence of pulsating wind, the upper surface of the wind turbine blade will be separated, which seriously deteriorates the aerodynamic characteristics of the blade. The pursuit of high aerodynamic performance of wind turbines has stimulated the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06
CPCF03D1/0633Y02E10/72
Inventor 张骏余永生陈剑杨骏李勇陈鑫丛星亮谢红
Owner ANHUI XINLT POWER TECH CONSULTING
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