Surveying and Mapping Method of Icing Galloping Distribution Map on Transmission Lines

Abstract

The invention discloses an electric transmission line icing galloping distribution diagram surveying and mapping method, and relates to electric transmission line special area distribution diagram drawing. The main content of the surveying and mapping method includes that a galloping area zoning, grading standard and galloping distribution diagram drawing method standard technical system is established based on that conductor icing galloping data of electric transmission lines over the years are collected, and by the means of summarizing of weather and topography characteristic laws, application of weather models of icing galloping and combination of landform and topography. A galloping distribution diagram drawn with the method can accurately reflects space-time laws when the electric transmission line icing galloping happens and covers all areas so as to provide a basis for line design, operating maintenance and technical transformation. Meanwhile, the method has a directive effect on newly constructed transmission projects in areas without the electric transmission lines.

Description

technical field [0001] The invention relates to the technical field of power grid transmission and transformation lines, in particular to a method for surveying and mapping ice-covered dancing distribution maps of transmission lines in consideration of meteorological and geographical elements. Background technique [0002] In recent years, the occurrence of ice-covered galloping on transmission lines has increased significantly. Once the large-scale galloping leads to frequent tripping of the line or even a breakage accident, it will cause a large-scale power outage and affect the safe and stable operation of the power grid. Therefore, preventing conductor icing galloping has become a key problem urgently needed to be solved on current transmission lines, and how to determine the prone area and degree of icing galloping has become the primary consideration in solving the problem. [0003] The drawing of galloping distribution map is an important part of improving the power g...

AI Technical Summary

Problems solved by technology

Due to the randomness of time and space when galloping occurs, personnel cannot reach the scene in bad weather; although galloping occurs on the line, it has not tripped; the application of online monitoring technology has just started, and there is very little data; especially for areas without lines, there is no galloping experience

Therefore, using the existing galloping observation records to divide the galloping area cannot truly reflect the actual situation on the spot, and there are still blind spots