Transmission tower online safety monitoring system and method for stress measuring

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

Inactive Publication Date: 2014-10-08
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST +1
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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 operat

Method used

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  • Transmission tower online safety monitoring system and method for stress measuring
  • Transmission tower online safety monitoring system and method for stress measuring
  • Transmission tower online safety monitoring system and method for stress measuring

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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

The invention belongs to the field of power system overhead transmission line tower safety monitoring, and provides a transmission tower online safety monitoring system and method for stress measuring. Firstly, stress sensors are installed on the key parts of a tower, and installation points can be obtained through finite element analysis and load application. Measurement values of the stress sensors are transmitted to a background server through the internet, the background server works out the reliability of each section of main material in real time according to each group of data together with the mean value and the variance of the strength of steel materials, and therefore the overall reliability of the tower can be obtained. The transmission tower online safety monitoring system and method have the following advantages that the problem of real-time tower stress monitoring is solved, and the stress distribution situations of the key parts can be monitored in real time; the safety state of the tower can be estimated in real time and serious accidents such as collapse can be effectively prevented under severe working conditions; research results are wide in application 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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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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