Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Vertical axis wind turbine based on magnetic damping technology

A wind turbine, vertical axis technology, applied to wind turbines, wind turbines at right angles to the wind direction, wind turbine combinations, etc., can solve the problem that the pitch pitch technology stays in the theoretical stage, the vertical axis wind turbine is slow, and it is unfavorable for power generation. It can improve the utilization rate of wind energy, reduce the cost of the whole machine, and attenuate vibration.

Inactive Publication Date: 2022-01-14
周凯
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The application in wind turbines has been relatively mature, but the theoretical research and practical application of vertical axis wind turbines are relatively slow, so the application of blade pitch technology in vertical axis wind turbines is very rare, and most pitch technology only stays in the theoretical stage
At the same time, one of the main reasons restricting the development of vertical axis wind turbines is that due to the special structure of vertical axis wind turbines, it is easy to generate strong airflow disturbances in the sweeping area during the rotation of the blades. Cause the blades to vibrate and vibrate, which is not conducive to the stable operation of the generator

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vertical axis wind turbine based on magnetic damping technology
  • Vertical axis wind turbine based on magnetic damping technology
  • Vertical axis wind turbine based on magnetic damping technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] In the following, the embodiments of the present invention will be described in detail in conjunction with the accompanying drawings.

[0028] A vertical axis wind power generator based on magnetic damping technology, including a hub 2, the hub 2 is a hemispherical shell structure, the surface of the spherical shell has a first guide groove 201, a second guide groove 202 and a third guide groove 203, the first One guide groove 201, the second guide groove 202 and the third guide groove 203 process shaft hole 204 in the direction perpendicular to the groove surface, the paddle shaft 13 is installed in the shaft hole 204, the swing arm 17 is installed on the paddle shaft 13, and one end of the swing arm 17 is welded The swing arm flange 171 has a wedge surface 172 processed at the other end. The pitch control assembly 14 is installed on the swing arm flange 171. The blade 3 is installed in the pitch control assembly 14. The wedge surface 172 is pressed against the first st...

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

No PUM Login to View More

Abstract

The invention discloses a vertical axis wind turbine based on a magnetic damping technology and belongs to the technical field of wind power generation. The vertical axis wind turbine capable of stably running in a high-wind-speed area is designed, in order to improve the utilization rate of wind energy, a unique upper divergent paddle structure and a magnetorheological fluid energy storage mechanism are designed, paddles can generate upward lift force when rotating at a high speed under the action of wind power, a stand column is driven to stretch out upwards along the pipe wall of a pile foundation, a sliding valve is installed at the bottom of the stand column and divides a pile foundation cavity into an upper cavity and a lower cavity, and in the ascending process of the sliding valve, magnetorheological fluid in the upper cavity enters the lower cavity through a drainage hole in the sliding valve and provides reverse torsion for preventing a turbofan from rotating along with a hub, so that part of wind energy is converted into gravitational potential energy of a wind tower to be stored, and the other part of wind energy is converted into damping force, so that the stability of the hub in high-speed movement is enhanced.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a vertical axis wind power generator based on magnetic damping technology. Background technique [0002] Compared with the horizontal axis wind turbine, the blades of the vertical axis wind turbine are distributed symmetrically around the central axis, which reduces the burden on the tower. At the same time, the rotation of the blades of the vertical axis wind turbine has nothing to do with the wind direction and can absorb The energy from the wind in any direction does not need to face the wind when the wind direction changes, and does not need to adjust the mechanism. It can still operate at high wind speeds, and the maximum wind speed can reach 50m / s, so its operating range is much larger than that of horizontal axis wind turbines, which can realize the utilization of wind energy by fans at high wind speeds. [0003] The pitch control technology of wind turbines...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/25F03D3/06F03D7/06
CPCF03D9/255F03D3/062F03D7/06Y02E10/74
Inventor 周凯
Owner 周凯
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products