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A transmission tower online safety monitoring system and method for stress measurement

A technology for transmission tower and safety monitoring, applied in electrical components, circuit devices, electrical digital data processing, etc., can solve problems such as the impact of safe operation of the power grid, the collapse of the tower, the collapse of the Southern Power Grid, etc. great effect

Inactive Publication Date: 2017-09-22
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of extreme disasters, a large number of iron towers collapsed, which had a great impact on the safe operation of the power grid. For example, the ice disaster in 2008 caused a large-scale collapse of the Southern Power Grid.

Method used

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  • A transmission tower online safety monitoring system and method for stress measurement
  • A transmission tower online safety monitoring system and method for stress measurement
  • A transmission tower online safety monitoring system and method for stress measurement

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Experimental program
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Embodiment

[0038] One, at first introduce the system and method involved in the present invention:

[0039] (1) System architecture.

[0040] The system consists of stress sensor, front-end acquisition processor and background server. The front-end acquisition processor is responsible for collecting and processing the data of the stress sensor, correcting it in combination with factors such as temperature, calculating the stress, encoding it, and transmitting it to the background server. The front-end acquisition processor adopts DSP architecture, and uses GPRS / CDMA data network to communicate with the background server. The whole system architecture is as figure 1 shown.

[0041] The data collector and the centralized data processor are connected and communicated through the 485 interface. The data collector sends the collected data to the centralized processor for processing, and the centralized processor converts the data, packs it according to the protocol, and sends it to the ba...

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Abstract

Aiming at the field of safety monitoring of iron towers of overhead transmission lines in electric power systems, the invention proposes an online safety monitoring system and method for transmission iron towers of stress measurement. First, stress sensors are installed on key parts of the tower, and the installation points can be obtained by applying loads through finite element analysis. The measured value of the stress sensor is transmitted to the background server through the network. The background server calculates the reliability of each section of the main material in real time for each set of data, combined with the mean and variance of the strength of the steel, so as to obtain the overall reliability of the tower. Therefore, the present invention has the following advantages: 1. The problem of real-time stress monitoring of iron towers is solved, and the stress distribution of key parts can be monitored in real time. 2 Evaluate the safety status of the tower in real time, and effectively prevent the collapse and other serious accidents under harsh working conditions; 3. The research results have wide adaptability and can be directly applied to various tower shapes.

Description

technical field [0001] The invention belongs to the field of safety monitoring of iron towers of overhead power transmission lines in power systems, and in particular relates to an online safety monitoring system and method for power transmission towers of stress measurement Background technique [0002] Due to frequent accidents such as power line disconnection and tower collapse in recent years, especially on lines with thick ice in winter, the probability of disconnection and tower collapse is higher. In the case of extreme disasters, a large number of iron towers collapsed, which had a great impact on the safe operation of the power grid. For example, the ice disaster in 2008 caused a large-scale collapse of the Southern Power Grid. How to prevent such accidents has always been the focus of attention and research. For the transmission tower line system, the stress distribution of the tower most intuitively reflects the safety status of the tower system. The reason for t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00G06F19/00
Inventor 王进刘志雄吴章勤艾川
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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