A method for monitoring the deflection of tubular busbars in substations
A tubular busbar and substation technology, applied in the field of monitoring, can solve problems such as the inability to guarantee the safe operation of the power grid, and achieve the effect of ensuring safe operation, accurate monitoring, and simple methods
Active Publication Date: 2016-11-09
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
However, due to the strong electric field and strong interference working environment of the substation, the monitoring of the tubular busbar is facing many difficulties. So far, the research on the tubular busbar has mostly focused on the anti-vibration performance, test analysis, and installation process of the tubular busbar structure. In terms of improvement, etc., the site lacks an effective and effective real-time monitoring method for tubular busbars, which cannot guarantee the safe operation of the power grid
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Embodiment Construction
[0038] The invention is specially designed for the deficiencies of the prior art in monitoring the deflection of the tubular busbar.
[0039]The present invention needs to solve four problems: the first is how to monitor the deflection of the tubular busbar; the second is how to set the monitoring points on the tubular busbar for later extraction and calculation; the third is how to identify and coordinate the monitoring points Data extraction; the fourth is how to scientifically and effectively calculate the deflection of the tubular busbar based on the extracted monitoring point coordinate data and give an alarm for exceeding the standard.
[0040] see figure 1 , the present invention uses two cameras with consistent internal and external parameters combined with background support software to monitor the deflection of the tubular busbar. The monitoring is realized through the following methods: setting up two cameras (the first camera 4 and the second camera 5) at an angle...
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The invention discloses a transformer substation tubular busbar deflection monitoring method. According to the technical scheme, a plurality of key points used as monitoring points and are colored for marking are selected on a monitored tubular busbar, then two calibrated cameras with inclined angles formed between the two calibrated cameras shoot the tubular busbar images of all the monitoring points; then a computer connected with the two cameras processes the images collected by the two cameras, and coordinate data of each monitoring point are extracted, and the maximum deflection of the tubular busbar is calculated according to the data; finally the calculation result is compared with the limiting value of the tubular busbar deflection, and whether the deflection of the tubular busbar exceeds the standard is judged. According to the transformer substation tubular busbar deflection monitoring method, the measuring mode that the camera monitoring point extraction technology is matched with three-dimensional space points is used to achieve real-time monitoring of the deflection of the transformer substation tubular busbar, the method is easy and simple to implement, can achieve real-time and accurate monitoring of the deflection of the tubular busbar, and therefore the safe operation of a power grid is ensured.
Description
technical field [0001] The invention relates to a method for real-time monitoring of the deflection of a tubular busbar of a substation based on key point extraction of camera images and three-dimensional space coordinate matching calculation, belonging to the technical field of monitoring. Background technique [0002] Due to the large span and heavy self-weight of the substation tubular bus, coupled with the influence of strong electric field and wind load vibration, the middle part is easy to sink after running for a period of time, forming a certain deflection deformation. When the deflection deformation exceeds the prescribed value , will threaten the safe operation of the power grid, so it is necessary to monitor the deflection of the tubular bus in real time. However, due to the strong electric field and strong interference working environment of the substation, the monitoring of the tubular busbar is facing many difficulties. So far, the research on the tubular busba...
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IPC IPC(8): G01B11/16G06T7/00
Inventor 唐贵基何玉灵彭涛马万里赵振兵刘尚坤
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)