Offshore floating double-rotor vertical axis wind power generation platform

A wind turbine and vertical axis technology, which is applied in the field of offshore wind power generation, can solve the problems of high requirements for mooring systems, large bending moments of wind turbines, and threats to the safety of wind power systems, so as to improve system safety and reduce the requirements of mooring systems. , the effect of reducing security requirements

Inactive Publication Date: 2017-09-01
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under the action of wind load, the single-tower structure wind power platform will generate a very large bending moment due to the one-way operation of the wind turbine itself, which has high requirements for the mooring system and poses a threat to the safety of the wind power system

Method used

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  • Offshore floating double-rotor vertical axis wind power generation platform
  • Offshore floating double-rotor vertical axis wind power generation platform
  • Offshore floating double-rotor vertical axis wind power generation platform

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Embodiment Construction

[0022] Further detailed description will be given below in conjunction with the accompanying drawings.

[0023] figure 1 It is a schematic diagram of the offshore wind power generation platform provided by the present invention. figure 2 It is the front view of the offshore wind power generation platform provided by the present invention, such as figure 2 As shown, the wind power generation system is composed of a wind rotor 1 and a vertical axis wind turbine (not shown), and each wind rotor 1 is composed of three blades 2 . The wind blows the blades 2 to drive the wind wheel 1 to rotate, and the wind wheel 1 rotates to drive the wind turbine rotor 3 to rotate, and the wind energy is converted into the kinetic energy of the rotor 3, and the mechanical energy is converted into electrical energy to realize offshore wind power generation. The floating platform is composed of an upper platform deck 4, three middle columns 5 and three lower floating bodies 6, and the lower floa...

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Abstract

The invention discloses an offshore floating double-rotor vertical-axis wind power generation platform, which includes two vertical-axis wind power generation systems, a floating platform and an anchoring system; the floating platform is an isosceles triangle platform, and two vertical-axis wind power generation systems The wind turbine system is installed at two bottom corners, and the wind rotor structures of the two vertical axis wind turbine systems are symmetrical about the center line of the isosceles triangle; the blade installation angle ɑ of the vertical axis wind turbine system in the left corner is the The blade installation angles of the vertical axis wind turbine system are equal in value and opposite in sign. The invention adopts a double-rotor arrangement, reduces the yaw bending moment borne by the floating foundation, reduces the requirements of the floating wind power platform on the mooring system, and improves system safety. For a single floating platform, since the present invention installs two vertical axis wind power generator systems, not only the safety requirements of the floating platform are reduced, but also the power generation of a single floating platform is doubled.

Description

technical field [0001] The invention relates to offshore wind power generation technology, in particular to an offshore floating vertical axis wind power generation platform. Background technique [0002] With the gradual increase in energy demand, the construction of offshore wind farms requires offshore wind turbines with a power of 5MW or more. The fixed foundation can no longer meet the design requirements, and the research on offshore floating wind power systems has become a new hot spot. Most of the proposed offshore floating wind power system schemes are based on the single tower structure of the horizontal axis wind turbine, and some people have proposed the offshore floating wind power platform system based on the vertical axis wind turbine, but the common feature of all the schemes is the single tower structure design, that is, a single-rotor design. Under the action of wind load, the single-tower structure wind power platform will generate a very large bending mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/25F03D3/06F03D13/25
CPCY02E10/727Y02E10/74F03D9/25F03D3/005F03D3/064F03D13/25F05B2240/93
Inventor 姜宜辰邹丽宗智王振李嘉文孙铁志李海涛裴玉国王昆
Owner DALIAN UNIV OF TECH
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