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A variable-pitch top-edge self-rotating vertical-axis wind turbine

A wind turbine, vertical axis technology, applied in wind turbines, wind turbines at right angles to the wind direction, wind turbine combinations, etc., can solve the problems of poor starting performance at low wind, low utilization efficiency, etc. Utilization rate, the effect of improving the lift coefficient

Active Publication Date: 2020-10-16
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of low utilization efficiency of small H-shaped vertical axis wind energy and poor start-up performance in low wind, the present invention provides a variable propeller top edge self-rotating vertical axis wind generator

Method used

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  • A variable-pitch top-edge self-rotating vertical-axis wind turbine
  • A variable-pitch top-edge self-rotating vertical-axis wind turbine

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Embodiment Construction

[0016] The patent of the present invention will be further described below in conjunction with the accompanying drawings:

[0017] A variable-pitch top-edge self-rotating vertical-axis wind power generator, comprising a pitch-variable component, a set of straight blades, a set of self-rotating cylinders, a motor, a generator, and a tower. The pitch control assembly is composed of a bracket 1, a slider 2, a connecting rod 3, a slotted connecting rod 4, a support shaft 6, and a torsion spring 7. There is a groove on the bracket 1, and the slider 2 passes through a bolt Hinged with the connecting rod 3, the connecting rod 3 and the slotted connecting rod 4 are hinged by bolts, the slotted connecting rod 4 is fixedly connected with the support shaft 6 through the nut 5, and the support shaft 6 is fixedly connected with the support plate 8 , the torsion spring 7 is sleeved on the support shaft 6 and connected to the bracket 1, and the other end is connected to the support plate 8. ...

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Abstract

The invention discloses a self-rotation type vertical shaft wind generator with variable propeller top edges. The wind generator mainly includes a variable propeller assembly, a straight blade set, aself-rotation cylinder set, motors, a generator and a tower. The variable propeller assembly is composed of a bracket, sliding blocks, connecting rods, slotted connecting rods, supporting shafts and torsion springs. The supporting shafts are fixedly connected to supporting plates. The torsion springs sleeve the supporting shafts and are connected to the bracket, and the other ends are connected tothe supporting plates. Straight blades are fixedly mounted on the supporting plates through bolts. Self-rotation cylinders are connected to main shafts of the motors through couplings and self-rotates around the axes. The main shaft of the bracket is connected to the main shaft of the generator through a coupling. The generator is fixedly connected to the tower through bolts. The self-rotation type vertical shaft wind generator with the variable propeller top edges can automatically adjust blade angles of attack according to wind speed, improves the utilization rate of wind energy by changingrotation speed of the self-rotating cylinders, and can change initial positions of the blades to realize adjustable starting moment and obtain large starting moment.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and more specifically relates to a vertical-axis wind power generator with a variable propeller top edge self-transformation. Background technique [0002] The types of wind turbines mainly include horizontal axis wind turbines and vertical axis wind turbines. Compared with horizontal axis wind turbines, vertical axis wind turbines have the advantages of insensitivity to changes in wind direction, simple structure, better maintainability and lower noise. Vertical axis wind turbines are divided into drag type and lift type. [0003] The H-type vertical-axis wind turbine is a typical lift-type vertical-axis wind turbine, which consists of multiple straight blades with equal cross-sections parallel to the rotation axis. [0004] The Reynolds number of the H-type vertical axis wind turbine is low, usually lower than 5×10 5 . H-type vertical axis wind turbines generally adopt aviatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/25F03D3/06F03D7/06
CPCF03D3/062F03D7/06F03D9/25F05B2270/328Y02E10/74
Inventor 唐新姿李鹏程王效禹袁可人
Owner XIANGTAN UNIV
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