A method and device for effectively reducing the impact of offshore wind turbine infrasound on marine organisms

A technology of offshore wind power and marine organisms, which is applied in the direction of sound-generating devices and instruments, can solve problems that have not been reported, and achieve the effect of ensuring normal operation and reducing infrasound energy

Inactive Publication Date: 2018-06-01
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, active noise reduction technology has a rich theoretical and experimental basis, and has been widely used in noise control of transformers, pipelines, etc., and spray noise reduction technology is also in the field of airflow noise control that requires high exhaust temperature. However, the application of the above-mentioned technologies in the field of wind turbine infrasound control (especially the joint application) has not been reported

Method used

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  • A method and device for effectively reducing the impact of offshore wind turbine infrasound on marine organisms
  • A method and device for effectively reducing the impact of offshore wind turbine infrasound on marine organisms
  • A method and device for effectively reducing the impact of offshore wind turbine infrasound on marine organisms

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Embodiment Construction

[0034] Such as Figure 1 ~ Figure 3 As shown, it is a device for effectively reducing the impact of infrasound on marine organisms in offshore wind turbines. A secondary loudspeaker array 4, an error sensor array 5, and an atomizer array are sequentially arranged under the blades 10 of the wind turbine from top to bottom. The plane 1 where the level speaker is located, the plane 2 where the error sensor array is located, and the plane 3 where the atomizer array is located under the blades of the wind turbine are as follows: figure 1 As shown, the plane 1 where the secondary speaker is located, the plane 2 where the error sensor array is located, and the plane 3 where the atomizer array is located are all parallel to the sea level.

[0035] The structural schematic diagram of the secondary loudspeaker array 4 is as follows figure 2 As shown, the secondary speaker array is formed by a number of secondary speakers evenly arranged, and the distance between adjacent secondary spe...

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Abstract

The invention discloses a method and a device for effectively reducing the influence of infrasound from offshore wind turbines on marine organisms. The device includes: a controller; a secondary loudspeaker array, an error sensor array and an atomizer array located in the space between the blades of the wind turbine and the sea level and arranged in sequence from top to bottom, wherein the secondary loudspeaker array and the error sensor array are one by one corresponding; and a sea level detector; the secondary loudspeaker array, error sensor array, atomizer array and sea level detector are all connected to and controlled by a multi-channel active adaptive controller. The invention combines the active noise reduction technology and the spray noise reduction technology for the infrasound control of the wind turbine, effectively reducing the impact of the infrasound generated by the wind turbine on marine organisms.

Description

technical field [0001] The invention belongs to the field of infrasound control and marine environment protection, and in particular relates to a method and a device for effectively reducing the influence of offshore wind turbine infrasound on marine organisms. Background technique [0002] Wind energy is renewable, inexhaustible, clean and non-polluting. It is one of the most mature renewable energy sources and plays a very important role in alleviating the energy crisis. However, due to factors such as unstable onshore wind resources and limited wind power sites, the development of onshore wind power is increasingly constrained. Compared with onshore wind power, offshore wind power resources are more abundant, and the development of offshore wind power projects has incomparable advantages such as saving land resources, stable wind speed, low turbulence, and small visual impact. Therefore, the development of offshore wind power will be a An important direction for the deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10K11/178G10K11/36
Inventor 翟国庆卢宽广伍思霞
Owner ZHEJIANG UNIV
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