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Method, device and system for measuring skew deformation amount of tower of wind generating set

A technology of wind turbines and measurement methods, applied in the direction of measuring devices, instruments, etc., can solve the problems of inaccurate measurement results of tower tilt deformation, high cost of GPS measurement, etc., and achieve the effect of low cost and accurate deformation curve

Inactive Publication Date: 2014-11-05
赤峰华源新力科技有限公司
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Problems solved by technology

[0005] The invention provides a method, device and system for measuring the inclination deformation of a wind turbine tower, which can effectively overcome the inaccurate measurement results of the inclination deformation of the tower and the high cost of GPS measurement in the prior art

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  • Method, device and system for measuring skew deformation amount of tower of wind generating set
  • Method, device and system for measuring skew deformation amount of tower of wind generating set

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Embodiment Construction

[0025] In order to overcome the problem of inaccurate tower tilt deformation measurement in the prior art, the present invention provides a tower tilt deformation measurement method, which can obtain a non-denatured curve of the tower tube, making the tower tube deformation measurement more accurate. In order to facilitate a better understanding of the technical solution of the present invention, the principle and implementation process of measuring the tilting deformation of the tower tube in the embodiment of the present invention will first be described below.

[0026] On the basis of analyzing the stress of the tower in the field environment, the inventor calculates the actual nonlinear deformation of the tower by establishing a mathematical model, so as to obtain the nonlinear deformation curve of the tower. Specifically, in this embodiment, the inventor divides the wind load on the tower into three parts, which are static wind load, quasi-static wind load (that is, wind l...

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Abstract

The invention provides a method, a device and a system for measuring the skew deformation amount of a tower of a wind generating set. The method comprises the following steps of: acquiring a skew angle which is measured by a skew sensor and an acceleration which is measured by an acceleration sensor on the tower; according to the skew angle and the acceleration, which are measured, acquiring the static deformation amount, quasi-static deformation amount and dynamic deformation amount of the tower; according to the static deformation amount, quasi-static deformation amount and dynamic deformation amount of the tower, determining a skew deformation equation of the tower, wherein the skew deformation equation comprises a static and quasi-static deformation equation and a dynamic deformation equation; and according to the skew deformation equation of the tower, determining a skew deformation curve of the tower. By adoption of the technical scheme, a nonlinear deformation curve of the tower can be obtained, and accuracy in measurement of the skew deformation amount of the tower is improved.

Description

technical field [0001] The invention relates to the measurement technology of the wind turbine tower, in particular to a method, device and system for measuring the tilt deformation of the wind turbine tower. Background technique [0002] The tower is the load-bearing part of the wind turbine, which bears complex and variable loads such as thrust, bending moment and torque load, so that during the operation of the wind turbine, the tower will be deformed to a certain extent such as swaying and twisting; in addition, The tower can also be tilted due to factors such as material deformation, component failure, and foundation settlement. Excessive tilt deformation of the tower will affect the normal operation of the wind turbine, and even cause safety accidents in serious cases. Therefore, it is necessary to measure the tilt deformation of the tower in real time. [0003] At present, when measuring the inclination deformation of the tower, it is usually to install multiple GPS ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/32
Inventor 罗振军牛文铁田永利朱建军刘峰赵建军张勋奎王文鹏苗继春
Owner 赤峰华源新力科技有限公司
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