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Floating type fan spoiler structure capable of increasing hydrodynamic damping

A spoiler, floating technology, applied in the field of floating wind turbine spoiler structure, can solve the problems of wind turbine alarm shutdown, reducing structural fatigue life and other problems

Pending Publication Date: 2021-06-08
HUANENG CLEAN ENERGY RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Vortex-induced vibration will generate structural resonance, which will cause abnormal alarm shutdown of the fan, and long-term operation will drastically reduce the fatigue life of the structure

Method used

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  • Floating type fan spoiler structure capable of increasing hydrodynamic damping
  • Floating type fan spoiler structure capable of increasing hydrodynamic damping
  • Floating type fan spoiler structure capable of increasing hydrodynamic damping

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Experimental program
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Embodiment Construction

[0035] The present invention is described in further detail below in conjunction with accompanying drawing:

[0036] refer to figure 1 , figure 2 and Figure 10 , the floating fan spoiler structure with increased hydrodynamic damping according to the present invention is used in a floating fan, including a wind turbine 1, a tower 2, a plurality of main buoys 3, a plurality of heave plates 4 and a plurality of connecting struts 6; wherein, a heave plate 4 corresponds to a main buoy 3, and the heave plate 4 is fixed on the bottom of the corresponding main buoy 3, between adjacent main buoys 3 and between each main buoy 3 and the lower side of the tower frame 2 The wind turbine 1 is fixed on the top of the tower 2 through connecting the struts 6 , the outer wall of the main buoy 3 is provided with a disturbance flow plate 5 , and the heave plate 4 is provided with a plurality of through holes 7 .

[0037] refer to Figure 9a , Figure 9b and Figure 9c , the spoiler 5 is a...

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PUM

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Abstract

The invention discloses a floating type fan spoiler structure capable of increasing hydrodynamic damping. The floating type fan spoiler structure is used in a floating type fan and comprises a wind turbine generator, a tower, a plurality of main buoys, a plurality of heaving plates and a plurality of connecting support rods, wherein one heaving plate corresponds to one main buoy, the heaving plates are fixed to the bottoms of the corresponding main buoys, the adjacent main buoys are connected through the connecting support rods, the main buoys and the lower side of the tower are connected through the connecting support rods, the wind turbine generator is fixed to the top of the tower, a plurality of spoilers are arranged on the outer walls of the main buoys, and a plurality of through holes are formed in the heaving plates. The structure can avoid vortex-induced vibration generated by water flow.

Description

technical field [0001] The invention belongs to the technical field of wind power generation and relates to a floating fan spoiler structure with increased hydrodynamic damping. Background technique [0002] With the continuous expansion of the development of wind energy resources, especially in the deep sea, the research of floating wind turbines has attracted much attention. Commonly used floating foundations include Spar foundation, TLP foundation and semi-submersible foundation. [0003] For structures with a cylindrical cross-section such as the main buoy and upright columns in the floating fan, at a certain constant flow rate, vortices detached from the surface of the structure will alternately be generated on both sides of the main buoy. The alternating vortex shedding will generate pulsating pressure on the column that changes periodically along the flow direction and in the cross flow direction. If the column is elastically supported at this time, or the flexible p...

Claims

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Application Information

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IPC IPC(8): F03D13/25F03D80/00
CPCF03D13/25F03D80/00Y02E10/72Y02E10/727
Inventor 周昳鸣郭小江田峰闫姝黄和龙林健聪李涛郭渝郭永发李旭如张乐扬
Owner HUANENG CLEAN ENERGY RES INST
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