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Overhead-power-transmission-line sag online monitoring method based on UWB ranging technology

An overhead transmission line and sag technology, which is applied in the direction of measuring devices, instruments, and wave/particle radiation, can solve the problem that the sag results cannot achieve high accuracy.

Inactive Publication Date: 2014-07-30
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods essentially measure sag by indirect means. Considering the measurement errors of relevant sensors and the accuracy of conversion models, the sag results obtained from this often cannot achieve high accuracy.

Method used

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  • Overhead-power-transmission-line sag online monitoring method based on UWB ranging technology
  • Overhead-power-transmission-line sag online monitoring method based on UWB ranging technology
  • Overhead-power-transmission-line sag online monitoring method based on UWB ranging technology

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Experimental program
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Effect test

Embodiment

[0037] The specific implementation steps of the online monitoring method for sag of overhead transmission lines based on UWB ranging technology are as follows: Figure 4 Shown:

[0038] (1) The installation point of the UWB distance measuring device.

[0039] The UWB ranging device is mainly composed of a signal sending module, a signal receiving module, a control module and a power supply module. It has a two-way interactive function and can realize ranging and communication between multiple monitoring devices. Signal mechanism, even in highly multipath and highly reflective environments, the point-to-point ranging accuracy can be as high as centimeters. The device is limited by factors such as the size of the device, so it adopts wire induction to obtain energy for power supply, and is equipped with a battery to adjust the electric energy, and can realize stable power supply for the device for a long time. Because the device is in a high-voltage environment, corona dischar...

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Abstract

The invention discloses an overhead-power-transmission-line sag online monitoring method based on a UWB ranging technology. The method includes the following steps: step1: selecting a position to install a UWB ranging device; step2. the UWB device performing ranging; step3. processing measured data and performing sag calculation. The method has the advantages of being high in measurement precision and great in reliability.

Description

technical field [0001] The invention relates to an on-line monitoring technology, in particular to an on-line monitoring method for sag of an overhead power transmission line based on UWB ranging technology. Background technique [0002] Overhead transmission lines bear the heavy responsibility of electric energy transmission and are an important and indispensable part of the power network system, especially the ultra-high voltage transmission lines as the backbone of the power grid. Its safe, reliable and stable operation is related to the healthy development of the national economy and social harmony and stability. The sag of overhead transmission lines is one of the main indicators in line design and operation and maintenance. It determines the tightness of overhead lines and the height of line towers. Its value is related to the safety of the entire transmission line operation. Sag must be controlled within the design within the permitted range. The operating load of t...

Claims

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Application Information

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IPC IPC(8): G01B15/00
Inventor 戴栋李述文刘祖军
Owner SOUTH CHINA UNIV OF TECH
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