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A real-time variable pitch h-type vertical axis wind turbine

A wind turbine, vertical axis technology, applied to wind turbines, wind turbines at right angles to the wind direction, control of wind turbines, etc., can solve the problems of restricting the promotion of vertical axis wind turbines, unable to solve overspeed control safety braking, etc. , to improve the quality and efficiency of power generation, reduce power output fluctuations, and avoid damage

Active Publication Date: 2020-01-14
吴小琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, a series of problems such as self-starting at low wind speeds, overspeed control at high wind speeds, and safety braking during maintenance cannot be solved at present, and these problems have been solved on horizontal-axis wind turbines, thus limiting the promotion of vertical-axis wind turbines

Method used

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  • A real-time variable pitch h-type vertical axis wind turbine
  • A real-time variable pitch h-type vertical axis wind turbine
  • A real-time variable pitch h-type vertical axis wind turbine

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Embodiment Construction

[0033] A real-time pitch-variable H-type vertical-axis wind power generator of the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0034] refer to figure 1 , the vertical axis wind generator includes a frame 1, an inner cylinder 2, a blade runner assembly 3, a generator 4, a hydraulic brake 5, a pitch mechanism 6, an anemometer 7, an electric control system 8 and other components. The fan blade runner assembly 3 is provided with several vertically placed fan blades 302, each installed on the fan blade rotating shaft 303, which are arranged around the fan blade runner 301 to form the fan blade runner assembly 3, the fan blade runner assembly 3 Through the rotary table bearing 201 with internal teeth, the rotary table bearing 202 is installed on the inner tube 2, the fan blade runner assembly 3 can rotate with the inner tube 2 as the axis driven by the wind energy, and the fan blade rotating s...

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Abstract

The invention discloses a real-time variable-pitch H type vertical axis wind turbine which comprises a vertically arranged inner cylinder and a plurality of vertically arranged fan blades. The fan blades are arranged around the inner cylinder so as to form a fan blade rotating wheel; fan blade driving worm wheels for adjusting angles of the fan blades are arranged at the upper ends and the lower ends of the fan blades; a differential planetary gear train drives the fan blade driving worm wheels to rotate, so that real-time pitch varying can be realized during a fan blade rotating wheel rotating process; and when the wind turbine is started, windward attack angles of the fan blades can be changed, so that automatic starting at low wind speed can be realized. During a running process of thewind turbine, the attack angles of the fan blades are automatically adjusted in real time according to the wind speed, so that the wind turbine always outputs stable rotating speed, a power output fluctuation is reduced, and the power generation quality and efficiency are improved. In a typhoon season or when the wind turbine is maintained, the attack angles of the fan blades are adjusted, so thatresistance is produced on the fan blades, the wind turbine can be braked under a minimum brake force, and the damage on the vertical axis wind turbine due to a wind weather is avoided.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to an H-type vertical axis wind power generator with real-time variable pitch. Background technique [0002] At present, there are two structural types of horizontal axis wind turbines and vertical axis wind turbines in the field of wind power generation. Compared with horizontal axis wind turbines, vertical axis wind turbines have the following advantages: [0003] 1. Environmental protection, low noise, little impact on birds; [0004] 2. For safety, the gearbox and generator are placed on the ground for easy maintenance. [0005] 3. Low cost, no need for too high tower, no need for windward and yaw system, can accept wind from any direction in 360-degree azimuth, and the main shaft always rotates to the design direction. [0006] However, a series of problems such as self-starting at low wind speeds, overspeed control at high wind speeds, and safety braking during maintenan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D3/06F03D7/06F03D15/00
CPCF03D3/068F03D7/06F03D15/00F05B2240/214F05B2260/85F05B2270/1014F05B2270/32Y02E10/74
Inventor 郑昌华吴小琴
Owner 吴小琴