Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Vertical-axis wind-driven dynamo of variable-pitch resistance and lift mixed type

A wind power generator, a hybrid technology, applied in the direction of wind power storage, wind power generators, wind power generators at right angles to the wind direction, etc., can solve the problems of reduced wind energy utilization, high noise, and many motors used for blade rotation devices , to achieve the effect of low start-up wind speed and reduced start-up wind speed

Inactive Publication Date: 2009-09-02
HARBIN ENG UNIV
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blade rotating device of the technical solution described in the patent application document uses many motors, has a complex structure and high noise
And because only the resistance of the wind is used, the utilization rate of wind energy is greatly reduced under high wind speed conditions.

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-driven dynamo of variable-pitch resistance and lift mixed type
  • Vertical-axis wind-driven dynamo of variable-pitch resistance and lift mixed type
  • Vertical-axis wind-driven dynamo of variable-pitch resistance and lift mixed type

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0027] combine figure 1 , figure 2 , image 3 , the main shaft 7 of the present invention is connected with the base 8 and fixed to the ground, and the wind vane 1 drives the absolute photoelectric encoder 17 and the magnet 19 to rotate relative to the large impeller according to the actual wind direction, and the upper and lower cantilever brackets 20 and 22, blades 2, and reinforced steel pipes 21 and other accessories, the large impeller rotates relative to the main shaft 7 under the action of wind force, the sleeve 12 is fixed with the large impeller, and the large pulley 11 on it drives the small pulley 4 through the V-belt transmission 6, and the kinetic energy of the large impeller Passed to the generator 5, the kinetic energy is converted into electrical energy by the generator. combine image 3 , Figure 4 , Figure 5 , the blade rotating device is ...

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 provides a vertical-axis wind-driven dynamo of a variable-attack angle resistance and lift mixed type, which comprises a power transfer device, a dynamo, a dynamo V-pulley mechanism, a main shaft, a sleeve, a cantilever bracket and blades, wherein the exterior of the main shaft is directly connected with the sleeve by a bearing, the sleeve is connected with the cantilever bracket which is provided with a blade rotating device, and the top end of the main shaft is provided with a wind vane; optimal attack angle control by utilizing the wind energy of the four blades which are driven by the motor is realized by a plurality of synchronous belt mechanisms; a low-pressure alternating current output by the dynamo is rectified by an inverter to output a direct current which is charged into an accumulator battery to provide the blade rotating device with a power supply; and a dogvane is connected with a controller which controls the blade rotating device. The invention adopts a vertical-axis windmill mode combining resistance type and lift type and can automatically adjust the attack angles of the blades according to a wind direction measured by the dogvane so that a blower is constantly in a state capable of generating the maximum torque, thereby effectively reducing the starting wind speed and improving the utilization rate of wind energy.

Description

(1) Technical field [0001] The invention relates to a vertical axis wind power generator, in particular to a vertical axis generator combining resistance type and lift type. (2) Background technology [0002] A wind turbine, also known as a windmill, is an energy conversion device that converts wind energy into mechanical energy, electrical energy or thermal energy. According to the difference of the wind rotor axis, it can be divided into horizontal axis wind turbine and vertical axis wind turbine. The energy drive chain (ie, wind wheel, main shaft, gearbox, generator) is in the horizontal direction, which is called a horizontal axis wind turbine. The energy drive chain is vertically directed, which is called a vertical axis wind turbine. Vertical wind turbines can be divided into drag type and lift type. [0003] In the prior art, there are many public reports about generating devices utilizing wind energy, solar energy and their combination. However, the wind rotor of...

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
IPC IPC(8): F03D9/00F03D3/00F03D3/06H02J7/00H02J7/06F03D7/06F03D9/11F03D80/70
CPCY02E10/72Y02E10/74Y02E70/30
Inventor 张立勋王康张松万晓正
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com