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Monitoring system for power transmission pole dynamic response under wind load effect and application thereof

A technology of power transmission towers and dynamic response, applied in measurement devices, instruments, etc., can solve problems such as increased difficulty in emergency repairs, power interruptions, etc., and achieve the effects of real-time acquisition, high precision, and convenient installation.

Inactive Publication Date: 2017-06-23
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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AI Technical Summary

Problems solved by technology

When the typhoon came, the broken poles caused large-scale power outages, which made it more difficult for post-disaster repairs, and caused huge property losses and social impacts

Method used

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  • Monitoring system for power transmission pole dynamic response under wind load effect and application thereof
  • Monitoring system for power transmission pole dynamic response under wind load effect and application thereof
  • Monitoring system for power transmission pole dynamic response under wind load effect and application thereof

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Embodiment Construction

[0026] In order to better understand the present invention, the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0027] Aiming at the dynamic response monitoring system of the transmission line under the wind load, the finite element model of the transmission tower 1 is firstly established, and the dynamic response analysis under the wind load is carried out to obtain the maximum vibration acceleration and dynamic strain of the transmission tower 1. , and at the same time analyze the low-order vibration frequency of the transmission tower 1; the analysis results show that the maximum vibration deformation of the transmission tower 1 is as follows image 3 , the comparison of acceleration and internal force is shown in Figure 4 , it can be seen that the vibration displacement and acceleration at the top of the transmission tower 1 are the largest, and the bending moment at the bottom of the transmission tower...

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Abstract

The invention relates to the technical field of power transmission line pole structure monitoring and particularly relates to a monitoring system for power transmission pole dynamic response under wind load effect and application thereof. The monitoring system comprises an acceleration sensor, a strain sensor, a wind speed and wind direction sensor, a collection system and a power supply system. According to the dynamic analysis result of the power transmission line pole under the wind load effect, arrangement of the acceleration sensor, the strain sensor and the wind speed and wind direction sensor is carried out. The acceleration sensor, the strain sensor and the wind speed and wind direction sensor of the monitoring system all have the anti-electromagnetic interference function, and a remote wireless collection system achieves automatic, real-time and wireless transmission to a remote client. The monitoring system combines the sensing technology and the wireless communication technology, achieves real-time monitoring of wind speed and wind direction, pole vibration acceleration and dynamic strain under the typhoon effect, and provides basic data for the anti-wind disaster mitigation research and safety assessment of the power transmission pole.

Description

technical field [0001] The invention relates to the technical field of transmission line tower structure monitoring, in particular to a power transmission tower dynamic response monitoring system under wind load and its application. Background technique [0002] my country's coast is a typhoon-prone area, and coastal cities are frequently affected by typhoons. In recent years, there have been frequent accidents of transmission line collapses caused by typhoons, among which the number of cement poles in transmission lines below 66kV is the largest. When the typhoon came, the broken poles caused large-scale power outages, which made it more difficult for post-disaster repairs, and caused huge property losses and social impacts. Therefore, it is of great significance to study how to improve the anti-typhoon ability of concrete poles in transmission lines below 66kV and reduce the occurrence of pole down accidents to ensure the stable operation of the power grid. Contents of t...

Claims

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Application Information

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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 梁庆国梁世容彭家宁边美华张兴森卢展强刘桂婵
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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