Method for monitoring, analyzing and early warning three-span lines based on numerical weather

Abstract

The invention discloses a method for monitoring, analyzing and early warning three-span lines based on numerical weather. The method comprises the following steps: acquiring electric power information and meteorological information; performing data preprocessing, and performing data exploration analysis and preprocessing on a data set formed by data acquisition; carrying out data numerical modeling, and analyzing the data by adopting a numerical algorithm; after numerical modeling is completed, applying a model result, judging and analyzing weather data through an association result, issuing early warning information according to a judgment result, and reminding a user to complete early warning work. The timeliness of three-span line meteorological hidden danger troubleshooting is improved, the processing time is shortened, and the meteorological hidden danger early warning processing period is advanced; more accurate and reliable early warning information is provided by using numerical model analysis, and the result accuracy is ensured by acquiring weather data and power transmission line defect data, trying to analyze defects and meteorological data, obtaining defect categories related to meteorological factors and analyzing an association relationship between the meteorological factors and power transmission line defects by using a data mining algorithm.

Description

technical field [0001] The invention belongs to the technical field of inspection of power transmission lines, and in particular relates to a method for monitoring, analyzing and early warning of three-span lines based on numerical weather. Background technique [0002] With the process of industrialization and the rapid development of the power industry, the power system plays an irreplaceable role in the energy supply system, and the transmission line is an important link to ensure the long-distance transmission of energy in the power system. Since the components of transmission lines, such as wires, overhead ground wires, insulators, fittings, towers, grounding devices, etc. are mostly exposed, with the alternation of seasons, extremely severe natural disasters occur, causing great harm to transmission lines. Extremely severe blizzard weather poses a serious threat to the safe operation of my country's power grid, and partial breakdowns of the power grid have also occurre...

AI Technical Summary

Problems solved by technology

[0005] Based on the existing power grid reliability / risk analysis theory, traditional technology uses long-term statistics of constant failure rate, outage time and other parameters to describe the risk level of transmission lines, which cannot truly reflect changes in the risk level of transmission lines over time and external meteorological environments. Happening

Considering the external meteorological environment during the operation of the power grid is only a few factors or a small number of states, and the transmission lines in most areas have to experience the effects of various meteorological environmental factors throughout the year, so the existing methods can only reflect the long-term operation of the transmission line. average risk level