Power transmission line coated ice thickness prediction method based on micro meteorological information

Abstract

The invention relates to a power transmission line coated ice thickness prediction method based on micro meteorological information, which utilizes the historical coated-ice thickness data of a power transmission line and the micro meteorological historical temperature data corresponding to the historical coated-ice thickness data to train a regression model using the coated ice thickness as the dependent variable and the micro meteorological temperature as the independent variable to obtain the correlation between the coated ice thickness and the temperature information and to further take and utilize the well-trained model and the meteorological temperature predicted by a metrological station to conveniently predict the thickness of the coated ice. According to the prediction method of the invention, through the correlation between the coated ice thickness and the temperature data and in combination with the future metrological temperature information, it is possible to predict the thickness of coated ice so as to provide auxiliary decision support to prevent ice and de-ice. Compared with the prior art, the method does not need the introduction of a special coated ice acquisition device, which not only reduces the cost invested into a project, but also eliminates the complicated image processing procedures.

Description

technical field [0001] The invention relates to the technical field of transmission line monitoring, in particular to a method for predicting the ice thickness of transmission lines based on micro-meteorological information. Background technique [0002] In power transmission and transformation lines, there are often cases where transmission lines pass or are located in alpine regions. In the transmission lines in alpine regions, after entering winter, it is easy to freeze in many high mountains, tuyere and other places. Icing phenomenon of towers and conductors in winter is an important hidden danger affecting the safe and stable operation of power lines. [0003] In order to keep abreast of the on-site conditions of the transmission line, so that when the ice on the transmission line is too thick, timely deicing measures are taken to prevent the large-scale paralysis of the power grid from causing heavy losses to the national economy. In the prior art, an icing online mon...

AI Technical Summary

Problems solved by technology

[0004] However, using the ice-covered on-line monitoring system requires a special image acquisition device, and the project cost is high

In addition, in winter, the image acquisition device is prone to problems such as lens freezing, image failure, insufficient power supply in winter, and no relevant data. It is difficult to guarantee the quality of ice-covered observations, and it is difficult to meet the relevant requirements of line operation.

In addition, the above-mentioned image analysis and processing steps are numerous, and the processing process is relatively complicated.

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