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Auxiliary starting device for vertical axis wind turbine support arm

A technology for starting a device and a wind turbine, which is applied in the field of wind turbines and achieves the effects of good starting performance, facilitating implementation, and eliminating excessive resistance torque.

Pending Publication Date: 2021-09-21
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that there are certain technical defects in the current lift-drag hybrid vertical axis wind turbine.

Method used

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  • Auxiliary starting device for vertical axis wind turbine support arm
  • Auxiliary starting device for vertical axis wind turbine support arm
  • Auxiliary starting device for vertical axis wind turbine support arm

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Embodiment Construction

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes ...

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Abstract

The invention discloses an auxiliary starting device for a vertical axis wind turbine support arm, which comprises a wind turbine rotating shaft, wherein the wind turbine rotating shaft is vertically arranged and the bottom of the wind turbine rotating shaft is rotatably connected with a wind turbine base; a support arm upper part, wherein one end of the support arm upper part is connected with the wind turbine rotating shaft, and the other end of the support arm upper part is connected with a blade; a support arm lower part which is rotatably connected to the lower surface of the support arm upper part, the support arm lower part can be rotatably unfolded or folded relative to the support arm upper part, when the support arm lower part is in an unfolded state, the support arm lower part naturally droops and forms an included angle with the support arm upper part, and when the support arm lower part is in a folded state, the support arm lower part is retracted into the support arm upper part; and locking units which are arranged on the support arm upper part and the support arm lower part. According to the auxiliary starting device for the vertical axis wind turbine support arm provided by the invention, the starting performance is relatively better, the resistance moment of the support arm lower part at the high tip speed ratio is greatly reduced, and the problem that the resistance moment of a traditional lift-drag hybrid wind turbine is too large is solved.

Description

technical field [0001] The invention relates to the technical field of wind turbines, in particular to an auxiliary starting device for a support arm of a vertical axis wind turbine. Background technique [0002] Wind energy has become an important part of global clean energy. Wind turbines are the key equipment for converting wind energy into electrical energy. According to the relationship between their rotation axis and wind direction, they can be divided into two categories: ①horizontal axis wind turbines and ②vertical axis wind turbines. Compared with the horizontal axis wind turbine, the vertical axis wind turbine has the advantages of convenient installation and operation and maintenance, low manufacturing cost, low operating noise, no need to face the wind and constant force, and is especially suitable for many buildings in cities and villages where the wind direction changes relatively sharply with multiple obstacle areas. Vertical axis wind turbines can also be d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D3/00F03D3/06F03D7/06
CPCF03D3/005F03D3/064F03D7/06Y02E10/74
Inventor 叶舟缪维跑李根李春刘青松许子非闫阳天金江涛欧华浩
Owner UNIV OF SHANGHAI FOR SCI & TECH
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