Floating blade offshore wind turbine with inclined axis pitch and self-starting function

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 floating blade offshore wind generator with oblique axis pitch 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 sources (such as solar energy, water energy, wind energy, biomass energy, wave energy, tidal energy, ocean temperature difference energy, geothermal energy, etc.) have become an ideal alternative to fossil fuels due to their sustainable use and no greenhouse gas emissions. Product. Among them, wind energy has become a rapidly developing renewable energy in the world due to its cleanliness and wide distribution of production areas. [0003] At present, the capture of wind energy in nature is mainly achieved through various types of wind turbines. Generally speaking, these wind turbines can be divided into two types, namel...

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

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