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Blade floating type offshore wind power generator with inclined shaft variable pitch and self-starting function

A kind of wind power generator, floating technology, applied in the direction of wind power generator at right angles to the wind direction, wind power generator, control of wind power generator, etc., can solve the limitation of vertical axis wind power generator large-scale, vertical axis wind power generator late, lack of Pitch adjustment scheme and other issues to achieve the effect of improving wind power conversion efficiency, reducing the setting of supports, and improving the effect of wind power utilization

Inactive Publication Date: 2019-03-08
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The angle of attack of the blades of the vertical axis wind turbine changes with the change of its position relative to the wind direction. It lacks stable self-starting ability and slow self-starting speed. This is one of the most criticized shortcomings of vertical axis wind turbines.
However, the research on vertical axis wind turbines started relatively late, and there is still a lack of mature pitch adjustment schemes.
The blades of the H-shaped vertical axis wind turbine are installed on the outermost layer of its rotation plane. The traditional truss support method makes the connection between the truss and the hub bear the huge periodic bending moment load brought by the blade and the truss itself, which is largely limited. upsizing of vertical axis wind turbines

Method used

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  • Blade floating type offshore wind power generator with inclined shaft variable pitch and self-starting function
  • Blade floating type offshore wind power generator with inclined shaft variable pitch and self-starting function
  • Blade floating type offshore wind power generator with inclined shaft variable pitch and self-starting function

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Embodiment Construction

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0043] Refer below Figure 1-Figure 11 The structure of the floating blade offshore wind turbine 100 with oblique axis pitch and self-starting functions according to the embodiment of the present invention will be described.

[0044] According to an embodiment of the present invention, a blade-floating offshore wind turbine 100 with inclined-axis pitch and self-starting functions includes: a floating blade device 1, a generator set 6, a hub 7, a truss 4, a resistance starting device 2, Inclined axis pitch device 3.

[0045] Among them,...

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Abstract

The invention discloses a blade floating type offshore wind power generator with an inclined shaft variable-pitch and self-starting function. The blade floating type offshore wind power generator comprises a floating blade device, a wheel hub, a generator set, a truss, a resistance starting device and an inclined shaft variable-pitch device, wherein the floating blade device comprises a lift typeblade and a floating boat used for supporting the lift type blade; the generator set comprises a rotating shaft, the wheel hub is connected to the rotating shaft; one end of the truss is fixedly connected with the lift type blade, and the other end of the truss is hinged to the wheel hub; the resistance starting device is connected to one end of the truss close to the floating blade device, the resistance starting device is the blade floating type offshore wind power generator with the inclined shaft variable-pitch and self-starting function and provides torque and lift force during starting and normal operating, one end of the inclined shaft variable-pitch device is connected to the truss, and the other end of the inclined shaft variable-pitch device is connected to the lift type blade, the inclined shaft variable-pitch device is used for adjusting the attack angle of the lift type blade. The offshore wind power generator disclosed by the embodiment of the invention is high in self-starting speed and adjustable in variable-pitch.

Description

technical field [0001] The invention belongs to the technical field of offshore wind power generation, in particular to a blade-floating offshore wind power generator with oblique-axis pitch adjustment and self-starting functions. Background technique [0002] Greenhouse gas emissions from the burning of fossil fuels are one of the main causes of climate change. Renewable energy (such as solar energy, water energy, wind energy, biomass energy, wave energy, tidal energy, ocean temperature difference energy, geothermal energy, etc.) has become an ideal substitute for fossil fuels because of its sustainable use and no greenhouse gas emissions. Taste. Among them, wind energy has become a rapidly developing renewable energy in the world due to its cleanness and wide distribution of production areas. [0003] At present, the capture of wind energy in nature is mainly realized through various types of wind power generators. Generally speaking, these wind turbines can be divided ...

Claims

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Application Information

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IPC IPC(8): F03D3/06F03D7/06F03D13/25F03D80/00
CPCF03D3/061F03D3/062F03D3/064F03D7/06F03D13/25F03D80/00Y02E10/727Y02E10/74
Inventor 苏浩曾攀雷丽萍
Owner TSINGHUA UNIV
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