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A basic structure of an offshore wind turbine with vibration damping

A technology for wind turbines and infrastructure, applied in infrastructure engineering, construction, etc., can solve problems such as land use conflicts, noise pollution, etc., and achieve the effects of reducing production costs, reducing horizontal vibration, and improving connection stability.

Active Publication Date: 2020-09-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Onshore wind farms started early and developed relatively maturely, but there are serious problems such as land use conflicts, noise pollution, and good sites have been gradually developed, and the development of wind farms is gradually shifting to the sea

Method used

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  • A basic structure of an offshore wind turbine with vibration damping
  • A basic structure of an offshore wind turbine with vibration damping
  • A basic structure of an offshore wind turbine with vibration damping

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0021] The foundation structure of an offshore wind generator with vibration reduction function of the present invention includes a foundation pile 1, a wind turbine tower 2 for supporting the wind generator is installed on the top of the foundation pile 1, and the lower part of the foundation pile 1 is inserted below the seabed ground , The middle part is located in the sea, and the upper part extends above the sea level. Among them: foundation pile 1 is a steel pipe pile, a water storage tank 3 is fixed in the upper pile core of foundation pile 1, and water storage tank 3 is an annular water tank. The side wall of 3 is the pipe body of the foundation pile 1, the top of the foundation pile 1 or the wind turbine tower 2 is fixedly installed with a transformer 4, a battery 5 and an intelligent controller 6. The transformer 4 is connected to the battery 5, and the transformer 4 is connected to wind power The machine is connected and part of the fan’s power is stored in the battery...

no. 2 example

[0027] In the embodiment, the number of water storage tanks 3 is several, which are fixed in the upper pile core of the foundation pile 1 along the vertical direction. Each water storage tank 3 is equipped with a water tank water level detector 10, and the foundation pile 1 is installed in each A horizontal steel beam 12 is fixed at the lower part of the water storage tank 3, and the water storage tank 3 is fixed on the steel beam 12. The lower part of the steel beam 12 is provided with diagonal braces 13, and the lower end of the diagonal brace 13 is fixed to the foundation pile 1, and the upper end It is fixed to the lower surface of the steel beam 12, and when the water pump 8 fills the water storage tank 3, the upper water storage tank 3 is preferentially filled.

[0028] The undescribed parts are the same as the first embodiment.

[0029] The invention is used as the foundation pile of the offshore wind power generator to bear the load transmitted from the upper structure of t...

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Abstract

The invention discloses a foundation structure of an offshore wind power generator with a vibration reduction function. The foundation structure comprises a foundation pile, wherein the foundation pile is a steel pipe pile, a water storage tank is fixed in an upper pile core of the foundation pile, the water storage tank is an annular water tank, and the side wall of the water storage tank is a pipe body of the pile body of the foundation pile; the top of the foundation pile or a wind generator tower cylinder is fixedly provided with a transformer, a storage battery and an intelligent controller; a water pump is fixed to the position, located below the sea level, of the foundation pile, the water pump is connected with the water storage tank through a water injection pipe, and the water pump can be used for pumping the sea water into the water storage tank; and a water tank water level height detector used for measuring the level of the water in the water storage tank is arranged in the water storage tank, and the foundation pile is provided with an acceleration sensor which is used for detecting the shaking amplitude of the foundation pile and a sonar. The foundation structure hasthe advantages that the horizontal vibration of the offshore wind power generator device can be reduced, and the intelligent degree is high.

Description

Technical field [0001] The invention belongs to the technical field of offshore wind power generators, and specifically relates to a basic structure of an offshore wind power generator with a vibration reduction function. Background technique [0002] Wind energy is a clean, renewable and green energy with high development efficiency, good economy, and large-scale development conditions and commercial prospects. Countries around the world are vigorously building wind farms, and wind power technology has also been rapidly developed. Wind farms are mainly divided into onshore wind farms and offshore wind farms. Onshore wind farms started early and their development is relatively mature, but there are problems such as serious land use contradictions, noise pollution, and excellent sites have been gradually developed. The development of wind farms is gradually shifting to the sea. [0003] Due to the wind and waves on the sea, the wind and waves will shake the basic structure of the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/42E02D27/34
CPCE02D27/34E02D27/425
Inventor 程晔龙雨
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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