A typhoon monitoring and layout method for power transmission and distribution facilities of power grid

Abstract

The invention discloses a typhoon monitoring and layout method for power grid transmission and distribution facilities, which relates to the field of disaster prevention and mitigation of power grid equipment, and includes the following steps: S1, constructing a historical typhoon distribution map; The hazard levels are respectively marked on the historical typhoon distribution map; S3, collect the data of historical typhoons in the grid power transmission and distribution facilities marked in step S2, calculate the distance between the disaster-causing point and the historical typhoon path, the wind force from the historical typhoon to the disaster-causing point, The wind speed slows down, and sorts the wind force and wind speed slowing down from the historical typhoon to the disaster-causing point in order; S4. According to the time and path of the future typhoon predicted by the General Administration of Meteorology, calculate the distance from the future typhoon to the disaster-causing point, and then predict the disaster-causing point. Probability of the disaster point being affected by the disaster, the layout of the power transmission and distribution facilities of the power grid. The invention has a wide range of point distribution, requires less historical data, has a simple calculation method, consumes less manpower and material resources, and has high point distribution accuracy.

Description

technical field [0001] The invention relates to the field of disaster prevention and mitigation of power grid equipment, in particular to a typhoon monitoring and distribution method for power transmission and distribution facilities of the power grid. Background technique [0002] Typhoon refers to the frontal tropical cyclone formed in the tropics or subtropics above 26°C. The World Meteorological Organization defines a tropical cyclone with a central continuous wind speed of 12 to 13 as a typhoon, which is the most concentrated in time and has the widest range of influence. Due to the wide distribution of power grid equipment, it is greatly affected by typhoons, so typhoons are one of the important factors affecting the safe and stable operation of power grids. At present, most of the construction and renovation of power transmission and distribution facilities in the power grid directly use the wind area map or the meteorological thematic analysis of the geographical loc...

AI Technical Summary

Problems solved by technology

At present, most of the construction and renovation of power transmission and distribution facilities in the power grid directly use the wind area map or the meteorological thematic analysis of the geographical location of the project to determine the value of the design wind speed, which requires the detection data of the automatic weather station of the meteorological department, and the automatic The detection data of weather stations mainly come from monitoring stations near urban areas. For areas far away from urban areas, the environmental differences between the two are relatively large, so that the data detected by automatic weather stations cannot accurately reflect the real environment far away from urban areas. Ultimately, the power transmission and distribution facilities of the power grid are inaccurate in detecting the real typhoon situation, and the monitoring effect of some power transmission and distribution facilities in the power grid is not significant

[0003] Application publication number: CN107194494A, which discloses a method for arranging power grid transmission and distribution facilities. The method is based on the correlation analysis of the historical typhoon wind field in the area where the power grid is located and the typhoon failure of the power grid to obtain the disaster-causing wind speed value, and the historical typhoon wind field exceeds the causing wind speed value. The frequency of disaster wind speed values ​​is used as the basis for selecting the site of the monitoring station, but this method mainly relies on the typhoon data during the historical transit period and the data of the impact of the historical typhoon. It is very difficult and consumes a lot of manpower and material resources, and the accuracy and comprehensiveness of the collected historical data will directly affect the wind speed value that caused the disaster, and then affect the layout of typhoon monitoring stations