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A device and method for real-time monitoring of the operating state of a wind turbine tower

A wind turbine tower, real-time detection technology, applied in the control of wind turbines, wind turbines, engines, etc., can solve the problems of not being able to accurately reflect the operating conditions of the wind turbine tower in real time, and not being able to obtain the variable load of the wind turbine sleeve in real time, etc. To achieve the effect of accurate monitoring

Inactive Publication Date: 2017-07-18
CHANGZHOU ARMOR INTELLIGENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Under the complex conditions of rapid changes in wind direction, it is impossible to accurately reflect the operation status of the fan tower in real time
[0006] (2) The main variable load on the fan sleeve (wind load and periodic excitation load generated by the rotation of the wind rotor) cannot be obtained in real time

Method used

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  • A device and method for real-time monitoring of the operating state of a wind turbine tower
  • A device and method for real-time monitoring of the operating state of a wind turbine tower
  • A device and method for real-time monitoring of the operating state of a wind turbine tower

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Effect test

Embodiment 1

[0034] A device for real-time monitoring of the running state of the fan tower proposed by the invention, its implementation plan: design a real-time monitoring device for the stability (inclination and torsion) of the fan tower 3 of the wind-driven generator, so as to quickly change the wind direction Under complex conditions, it can more accurately reflect the operating status of the wind turbine tower 3, adjust the direction of the wind turbine impeller in time, and send an alarm to the control center remotely. The system emits laser light to the bottom of the fan tower 3 through the transmitting device 2 at the top center of the fan tower 3, wherein the receiving device 4 at the bottom center of the fan tower 3 is a concave spherical surface, and a series of laser receiving heads are evenly distributed on the concave spherical surface. It is used to receive the laser emitted from the top, and the central axis of the fan tower 3 is defined as the Z axis. When the fan tower 3...

Embodiment 2

[0037] In addition, this device can also be placed in sections to adapt to the shelter of the wind tower 3 or the need to monitor the various connecting parts and the overall operating status in detail. The details are as follows: a launcher 2 is placed in the center of the top of the wind tower 3, and the wind tower 3 A concave spherical receiving device 4 is placed in the middle, and a transmitting device 2 is also placed in the middle, which is used to emit laser light to the bottom. A concave spherical receiving device 4 is placed at the bottom of the fan tower 3, so that two or more stages are connected in series , it can avoid the inner occlusion of the tower barrel, monitor the parts of the tower barrel in sections, and realize the accurate monitoring of the operation status of the wind turbine tower.

Embodiment 3

[0039] A method for real-time monitoring of the operating state of a fan tower, the specific steps are as follows:

[0040] a. Set some reference thresholds inside the fan main control system 9;

[0041] b. Define the central axis of the fan tower 3 as the Z axis, the laser emitting device at the top of the 3 shafts of the fan tower emits laser light, and the laser receiving device at the bottom of the 3 shafts of the fan tower receives the laser signal, and through the angular motion detection device 6, The wind speed sensor 7 and the six-dimensional force sensor 8 measure the current angle signal, angular velocity signal, angular acceleration signal, wind speed signal and six-dimensional force signal, and measure the angle signal, angular velocity signal, angular acceleration signal, wind speed signal and six-dimensional force signal. The Weili signal is transmitted to the fan main control system 9;

[0042] c. Perform differential processing on the values ​​of the angle si...

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Abstract

The invention relates to a device and a method for timely monitoring the running state of a fan tower drum. A laser ranging technology is adopted, a laser emitter head is placed at the top of the axis of the fan tower drum, a concave spherical surface laser receiving device is placed at the bottom of the axis of the fan tower drum, laser receiving ends which are uniformly distributed on the concave spherical surface are corresponding to the deviation angle of the tower drum along the X and Y axis, signal processing technology modules are contained in the concave spherical surface laser receiving device, and laser signals and conversion rates sent from the laser emitter head and received by the series of laser receiving ends are calculated to obtain the deviation angular speed and accelerated speed of the tower drum along the X and Y axis and the torsion angle of the tower drum along the Z axis namely the direction of the axis of the tower drum. The device also comprises a wind speed and six dimensional force sensor and sensor signals are transmitted to a wind field main control system through a data transmission system. According to the device and the method for timely monitoring the running state of the fan tower drum, the real-time monitoring is performed on the stability of the wind power generation tower drum so as to accurately reflect the state of the fan tower drum and respond timely under the complicated condition that the wind direction changes rapidly, wherein the stability comprises the inclination angle and torsion.

Description

technical field [0001] The invention relates to the field of wind power generators, in particular to a device and method for real-time monitoring of the running state of a wind turbine tower. Background technique [0002] At present, with the development of society, the world's energy consumption continues to increase, and the energy crisis in various countries is becoming more and more obvious. However, due to the renewable, wide distribution, and non-polluting characteristics of wind energy, wind power generation has become an important development direction for the development of renewable energy in the world, and wind turbines are developing in the direction of light weight, high efficiency, high reliability, and large-scale. However, in large and medium-sized wind turbines, taller towers are often used to support the fan impeller and the nacelle in order to obtain more wind energy. Among them, the tower, as an important load-bearing part of the fan unit, has a harsh wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04
CPCF03D7/04F05B2270/804Y02E10/72
Inventor 郑震
Owner CHANGZHOU ARMOR INTELLIGENT TECH
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