A new type of wind turbine with adaptive wind direction with wind deflector
A wind deflector, self-adaptive technology, applied in the installation/supporting configuration of wind turbines, wind power generation, etc., can solve the problems of tower instability and collapse, increased construction difficulty, increased construction cost, etc., to reduce the overall Structural wind load, improved wind resistance and stability, simple structure
Active Publication Date: 2018-07-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For example, it is necessary to make special-shaped formwork, which increases the difficulty of construction and the cost of construction measures. The most serious thing is that the randomness of wind direction sometimes increases the wind load of the tower with wind guide measures, and in extreme cases even causes the tower to be damaged. Instability and collapse, causing adverse impact on social economy and safety
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The present invention is described in further detail now in conjunction with accompanying drawing.
[0024] Such as Figure 1-3 The new wind turbine adaptive to the wind direction shown is a 3MW horizontal-axis large-scale wind turbine, which mainly includes a tower 1 , a nacelle 2 , a wind wheel 3 , a rotating device 4 and a base 5 .
[0025] The tower tube 1 is installed on the base 5. It is a frustum-shaped cylindrical structure with a linearly changing thickness. The material is steel, with a height of 85m, a top radius of 2m, a bottom radius of 2.5m, a top wall thickness of 0.03m, and a bottom wall thickness of 0.06m. Both the windward side and the leeward side of the tower 1 are equipped with a vertical wind deflector 6, and the wind deflector 6 is fixed on the radial direction of the tower 1 by embedded bolts. Axisymmetrically installed, the wind deflector 6 is a cuboid steel plate, the radial extension on the outer surface of the tower 1 can be 1m, and the circ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A novel wind direction self-adaption wind turbine with wind deflectors comprises a novel wind turbine tower drum. The windward side and the leeside of the tower drum are each provided with one vertical wind deflector. One of the wind deflectors can break wind on the windward side, and the other wind deflector can break vortex on the leeside. The bottom of the tower drum is connected with a lower foundation through a rotary device. The tower drum, the wind deflectors and an upper structure of the wind turbine are controlled through a yaw system. The rotary device rotates at the bottom of the tower drum in a wind direction self-adaption mode. Through the novel wind direction self-adaption wind turbine, while the wind resistance and stability of the overall structure of the wind turbine are improved, the wind load of the overall structure can be reduced, the material consumption of the tower drum can be reduced, and the adverse effects of wake flow of the upstream tower drum to a downstream wind field where the wind turbine is located can be remarkably reduced; and the novel wind direction self-adaption wind turbine has the advantages of simple structure, convenient construction and the like.
Description
technical field [0001] The invention belongs to the building technology field of wind power systems, and in particular relates to a novel wind-driven machine with an adaptive wind direction with a wind deflector. Background technique [0002] As a pioneer in the new energy industry, wind turbines are gradually developing towards high power, and at the same time, the tower structure presents the characteristics of ultra-high and thin. As a typical wind-sensitive structure, the structural form of the wind turbine tower must not only meet the technical requirements of wind power generation, but also have sufficient strength and stability. Therefore, it is necessary for structural engineers to take appropriate engineering construction measures to adjust the wind pressure distribution on the surface of the wind turbine tower, reduce the wind load on the overall structure and reduce consumables, and at the same time reduce the adverse effects of the upstream wake on the wind field...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F03D13/20
CPCY02E10/72Y02E10/728
Inventor 柯世堂余文林王浩朱鹏杜凌云余玮徐璐王晓海
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS