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
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  • Abstract
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  • Application Information

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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

Method used

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  • 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

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[0026] Hereinafter, the present invention will be described in more detail with examples in conjunction with the accompanying drawings:

[0027] Combine figure 1 , figure 2 , image 3 The main shaft 7 of the present invention is connected to the base 8 and fixed to the ground. 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. The upper and lower cantilever brackets 20 and 22, the blades 2, and the reinforced steel pipe The large impeller formed by 21 and other accessories rotates relative to the main shaft 7 under the action of wind. The sleeve 12 is fixed with the large impeller. The large pulley 11 on it drives the small pulley 4 through the V-belt transmission 6 to reduce the kinetic energy of the large impeller. It is transmitted to the generator 5, and the generator converts the kinetic energy into electrical energy. Combine image 3 , Figure 4 , Figure 5 , The bl...

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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

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Application Information

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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
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