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Large-span line vibration monitoring device and monitoring method

A vibration monitoring and large-scale technology, applied in the direction of measuring devices, measuring device casings, measuring instrument components, etc., can solve the problems of inability to monitor synchronously, lack of pneumatic synchronous monitoring devices, etc., and achieve the effect of simultaneous synchronous measurement

Pending Publication Date: 2020-11-13
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3) The anemometers and breeze vibrations used in some wind field monitoring cannot be monitored synchronously by separate monitoring devices (the anemometers are arranged on the towers, and the vibration devices are arranged on the wires);
[0007] 4) Lack of synchronous monitoring device for aerodynamic force, wire temperature and vibration response

Method used

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  • Large-span line vibration monitoring device and monitoring method
  • Large-span line vibration monitoring device and monitoring method
  • Large-span line vibration monitoring device and monitoring method

Examples

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Effect test

Embodiment 1

[0060] The invention provides a vibration monitoring device for a large-span line, such as figure 1 As shown, it includes: an ultrasonic wind speed and direction sensor 3, a hollow housing, a temperature sensor 5 arranged in the housing, a plurality of accelerometers 6 and a main control circuit board 7;

[0061] The housing is fixed on a UHV or large span wire; the ultrasonic wind speed and direction sensor 3 is installed above the housing;

[0062] The ultrasonic wind speed and direction sensor 3, the temperature sensor 5 and the accelerometer 6 are all connected to the main control circuit board 7;

[0063] The main control circuit board 7 is connected to a remote server;

[0064] The main control circuit board 7 processes the wire temperature collected by the temperature sensor 5, the wind speed and direction collected by the ultrasonic wind speed and direction sensor 3, and the wire vibration acceleration collected by the accelerometer 6 to obtain the wire aerodynamic force, vibra...

Embodiment 2

[0119] The invention provides a method for monitoring vibration of a large-span line, such as Figure 5 Shown, including:

[0120] Install the large-span line vibration monitoring device on the UHV or large-span line;

[0121] The temperature sensor 5 is used to measure the wire temperature, the ultrasonic wind speed and direction sensor 3 is used to measure the wind speed and direction, and the accelerometer 6 is used to measure the wire vibration acceleration; and the communication unit is used to send to the remote server.

[0122] Specifically, the temperature sensor 5 of the large-span line vibration monitoring device measures the wire temperature, the ultrasonic wind speed and direction sensor 3 of the large-span line vibration monitor device measures wind speed and direction, and the accelerometer 6 of the large-span line vibration monitor device measures the wire vibration acceleration;

[0123] The main control circuit board 7 of the large-span line vibration monitoring device...

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Abstract

The invention provides a large-span line vibration monitoring device and method. The large-span line vibration monitoring device comprises an ultrasonic wind speed and direction sensor, a hollow shell, a temperature sensor, an accelerometer and a communication unit, wherein the temperature sensor, the accelerometer and the communication unit are arranged in the shell. The shell is fixed on an extra-high voltage or large-span wire; the ultrasonic wind speed and direction sensor is mounted above the shell; the ultrasonic wind speed and direction sensor, the temperature sensor and the accelerometer are all connected with the communication unit; the temperature sensor is used for collecting the temperature of a wire; the ultrasonic wind speed and direction sensor is used for collecting wind speed and direction; the accelerometer is used for collecting the vibration acceleration of the wire; the communication unit is in communication connection with the far-end server and is used for realizing data communication between the vibration monitoring device and the far-end server. According to the invention, the ultrasonic wind speed and direction sensor, the temperature sensor and the accelerometer are integrated in one device, and simultaneous and synchronous measurement of aerodynamic force, temperature and vibration response of the wire can be realized.

Description

Technical field [0001] The invention relates to the technical field of breeze vibration monitoring and prevention of overhead power transmission lines, in particular to a large-span line vibration monitoring device and monitoring method. Background technique [0002] If the breeze vibration amplitude exceeds the warning value, it will cause fatigue damage to some circuit components, such as fatigue damage or wear of the ground wire's fatigue broken strands, fittings, spacer rods, and tower components. In particular, the continuous increase of the conductor cross-section, tension, suspension height and span of UHV and large-span lines has caused the vibration energy of the wind to the ground line to increase greatly, and the vibration intensity far exceeds the vibration intensity of ordinary lines. Due to the high frequency and small amplitude of breeze vibration, it is difficult to be discovered during line operation and maintenance, and has a certain degree of concealment. It i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G01D11/24
CPCG01D11/245G01D21/02
Inventor 李孟轩李丹煜刘彬程永锋马潇
Owner CHINA ELECTRIC POWER RES INST
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