Electric transmission line fire spreading predicating method and system based on grid flow

Abstract

The invention discloses an electric transmission line fire spreading predicating method and system based on a grid flow. The method includes the steps that firstly, fire point collecting equipment is used for obtaining fire point information; a GIS image of an affected zone is divided into a grid image, so that a grid terrain of the affected zone is obtained, the ground feature category of each grid is identified, grid-crossing fire spreading intensity is calculated under different meteorological conditions, and a fire spreading weighing grid chart of the affected zone is constructed; a fire spreading route from sources to sinks is searched for in the fire spreading weighing grid chart of the affected zone to establish a fire behavior spreading model, and coordinates of an affected pole tower, the zone area of spreading and the time for fire spreading to the pole tower are calculated; finally, corresponding alarms are given to different influence grades of fire spreading predicated according to the grid flow method. The electric transmission line fire spreading predicating method and system based on the grid flow have the advantages that the time for fire point spreading to an electric transmission line zone and fire behavior intensity can be rapidly calculated, fire behaviors are informed in time, and early warning is high in accuracy.

Description

technical field [0001] The invention relates to a method and system for predicting fire spread of transmission lines, in particular to a method and system for predicting fire spread of transmission lines based on grid flow. Background technique [0002] With the continuous development of cities and industries in recent years, the demand for electricity has increased dramatically. With the continuous construction of power infrastructure, the scale of transmission lines continues to expand, and the voltage level of transmission lines is getting higher and higher. my country's power industry has entered the era of large power grids characterized by large units, high voltage, and high automation. The basic industry and pillar industry for the sustainable development of the national economy and society. However, most transmission lines are far away from cities and pass through mountainous areas and farmland. They are extremely vulnerable to fires such as wildfires and farmland st...

AI Technical Summary

Problems solved by technology

These methods do not take into account the geographical features and vegetation surrounding the fire point and the transmission line, and also ignore the potential impact of the spread of a long-distance fire on the transmission line, so they cannot give accurate forecasts and often generate false alarms.

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