Method for measuring horizontal displacement of the top end of a wind power generator tower

A wind turbine and horizontal displacement technology, applied in the field of infrared lasers, can solve the problems of horizontal displacement deviation and the inability to accurately obtain the horizontal displacement of the top of the wind turbine tower, so as to achieve the effects of improving accuracy, improving evaluation, and ensuring power supply safety

Active Publication Date: 2018-12-21
浙江大学高端装备研究院
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Problems solved by technology

However, in actual situations, the real horizontal displacement of the tower will have a large deviation, and this method cannot accurately obtain the horizontal displacement of the top of the wind turbine tower

Method used

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  • Method for measuring horizontal displacement of the top end of a wind power generator tower
  • Method for measuring horizontal displacement of the top end of a wind power generator tower
  • Method for measuring horizontal displacement of the top end of a wind power generator tower

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Embodiment Construction

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] refer to figure 1 As shown, a method for measuring the horizontal displacement of the top of the wind-driven generator tower includes a base plate 13 and a wind-driven generator tower arranged on the base plate 13. The method includes the following steps:

[0032] Step 1) Install the measuring device to the designated station, install the projector on the base plate 13 at the center of the bottom center of the wind turbine tower, and use a PC to connect the projector through wireless communication, and keep the projector in working condition. The security level ring diagram preset by the PC is projected on the projector screen 8, and then the center point of the safety level ring diagram of the projector is adjusted to be on the same vertical straight line as the center of the wind turbine tower bottom, and then fixed The posit...

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Abstract

The invention relates to a method for measuring horizontal displacement of the top end of a wind power generator tower. a plurality of pairs of parallel infrared receivers are adopted to control a photoelectric switch below the top end of a tower frame of the wind power generator tower, then a laser infrared lamp below the top of the tower frame is started to vertically transmit infrared rays to abuilt-up projector screen at the bottom of the tower frame of the wind power generation tower, a dynamic position diagram of a projection point of the laser infrared lamp on the projector screen is shot by utilizing an infrared induction high-definition camera, then pictures are transmitted to an external PC in real time, the horizontal displacement of the top end of the wind power generator tower is calculated through the distance between the position of the dynamic projection point and the position of a calibration projection point. The method can accurately measure the horizontal displacement of the top end of the wind power generator tower, the working state of the top end of the tower frame of the wind power generator is fed back in real time, the evaluation of the external system onthe safety of the wind power generator tower is improved, and the method is an important monitoring method for guaranteeing the power supply safety of the wind power generator.

Description

technical field [0001] The invention belongs to the technical field of infrared lasers, and in particular relates to a method for measuring the horizontal displacement of the top of a wind power generator tower. Background technique [0002] The tower is the main load-bearing mechanism of the wind power generator, especially the large wind power generator, its height is generally more than tens of meters. When the wind turbine is running, the stress state of the tower is extremely complicated. These loads usually include wind load, self-weight of the unit, and eccentric moment caused by the offset of the center of gravity of the unit, etc. Under the joint action of these loads, the top of the tower will produce horizontal displacement (deflection). If the horizontal displacement is too large, it will cause severe vibration of the unit, that is, the top of the tower can be corrected or scrapped, which will eventually cause the unit to fail to operate normally. It can be see...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00
CPCF03D17/00
Inventor 沈洪垚唐胜邓荣新李顺傅建中
Owner 浙江大学高端装备研究院
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