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A floating wind turbine tower scale model for simulating tower shadow effect and yaw error

A technology of yaw error and scaled model, which is applied in the directions of wind turbines, engines, mechanical equipment, etc., can solve the problems of inability to consider tower shadow effect and yaw error, and limit the characterization ability of floating wind turbines. The effect of weight controllable and critical dimension error controllable

Active Publication Date: 2021-01-01
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the challenges and limitations in design and processing, the existing scale models of floating wind turbines cannot take into account the tower shadow effect and yaw error, which greatly limits the ability of the scale model to describe real floating wind turbines

Method used

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  • A floating wind turbine tower scale model for simulating tower shadow effect and yaw error
  • A floating wind turbine tower scale model for simulating tower shadow effect and yaw error
  • A floating wind turbine tower scale model for simulating tower shadow effect and yaw error

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Experimental program
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Effect test

Embodiment 1

[0034] This embodiment provides a floating fan tower scale model for simulating the tower shadow effect and yaw error, such as figure 1 As shown, it includes the sextant force gauge 1 at the bottom of the tower, the connecting component 2 at the bottom of the tower, the conical tower tube component 3, the yaw adjustment component 4 and the sextant force gauge 5 at the top of the tower; the lower end surface of the sextant force gauge 1 at the bottom of the tower is fixed Installed on the floating platform, the upper end surface of the sextant force gauge 1 at the bottom of the tower is fixedly connected with the lower part of the connecting component 2 at the bottom of the tower, and the upper part of the connecting component 2 at the bottom of the tower is fixedly connected with the lower end of the conical tower tube component 3. The upper end of the tower assembly 3 is fixedly connected to the lower part of the yaw adjustment assembly 4, and the upper part of the yaw adjustm...

Embodiment 2

[0048] On the basis of Embodiment 1, the material of the tower body 31 is high-strength structural steel, and the yield strength of the high-strength structural steel is greater than 400 MPa. In this embodiment, it is preferably Q460B. The lower end of the tower body 31 is embedded with a connecting ring at the bottom of the tower. The upper part of 32 is fixedly connected by bolts or welding, and the upper end of tower body 31 is fixedly connected with the lower part of tower top embedded connecting ring 33 by bolts or welding.

[0049] For bolts with more than 4 connecting bolts in the same group, the bolts shall be pre-tightened in the order of P-shaped. The bolt pre-tightening tool is a hydraulic tensioner, and the bolt pre-tightening force is 50% to 60% of the effective load of the bolts.

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Abstract

The invention discloses a floating fan tower tube scale model capable of simulating tower shadow effects and yaw errors, and relates to the field of floating fan scale model tests. The floating fan tower tube scale model comprises a tower bottom six-component meter, a tower bottom connecting component, a conical tower tube component, a yaw adjusting component and a tower top six-component meter, wherein the lower end surface of the tower bottom six-component meter is fixedly mounted on a floating platform; the upper end surface of the tower bottom six-component meter is fixedly connected with the lower part of the tower bottom connecting component; the upper part of the tower bottom connecting component is fixedly connected with the lower end part of the conical tower tube component; the upper end part of the conical tower tube component is fixedly connected with the lower part of the yaw adjusting component; and the upper part of the yaw adjusting component is fixedly connected with the lower end part of the tower top six-component meter. Through the implementation of the floating fan tower tube scale model disclosed by the invention, the tower shadow effects and the yaw errors experienced by a real offshore floating fan can be accurately and efficiently simulated under the premise that other performance requirements of a scale model pool test are prevented from being influenced; and furthermore, the tower tube loads under various working conditions of the floating fan can be completely monitored.

Description

technical field [0001] The invention relates to the field of scaled model tests of floating wind turbines, in particular to a scaled model of a floating wind turbine tower for simulating tower shadow effects and yaw errors. Background technique [0002] With the development of high-quality wind resources on land becoming saturated, wind power technology is gradually transferring from land to sea. Among them, the floating wind turbine technology suitable for large water depths has attracted widespread attention from academia and industry. Nowadays, the research technology and related theories of floating wind turbines are still immature, and it is considered to be the most efficient, reliable and economically feasible method to study the dynamics of floating wind turbines by carrying out scaled model pool tests. [0003] In real offshore floating wind turbines, the tower is usually designed as a conical structure with a thick bottom and a thin top. When the fan blades pass t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D17/00
CPCF03D17/00
Inventor 彭志科温斌荣田新亮董兴建寇雨丰李俊
Owner SHANGHAI JIAO TONG UNIV
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