Analysis And Application On Dynamic Management Of Tree Fault In Transmission Line

Electric power industry is the most important energy industry in the development of national economy.With the rapid development of economy in our country,the demand for electricity consumption is increasing,and the scale level of power grid construction is also expanding.Because transmission lines are mostly built in suburbs,villages,hills and mountains,trees will grow naturally or artificially in line corridors.Every year,transmission line tripping occurs because of the lack of safe distance between trees and transmission line conductors.The serious situation will cause casualties and cause serious losses to enterprises and residents.The existing tree barrier defect classification management method of power grid company is to judge the minimum distance from the tree in the maximum sag or maximum wind deviation time of the conductor in the line protection range,and according to the value of the distance,the defect is divided into emergency,important and generally,according to the defect grade,the time limit for eliminating the defect is stipulated.Because tree barrier removal needs to consume manpower and material resources,transmission line construction has been rapid and increasing in recent years,but due to various reasons,the number of people cleaning tree barrier defects has not increased,the problem is that tree barrier cleaning is not timely,can not eliminate tree barrier defects within the prescribed time as required.In this paper,by analyzing the growth cycle of different species of trees,the growth laws of different tree species,different tree ages and different seasons are studied and analyzed,and a scientific and effective cleaning plan is worked out,and a reasonable cleaning plan is arranged on the premise of ensuring the safety of the line.Can reduce the pressure caused by the time limit examination.It is of great significance to ensure the safe operation of power grid,to ensure the reliable transmission of power and to reduce the operating cost of power grid.This paper takes my Guangdong Maoming area as an example,analyzes the growth situation of common tree species in Maoming area in detail,and establishes the growth model of common trees by using Richard's growth curve equation.The 3D model of the trees in line protection is analyzed by means of UAV carrying lidar,and the concrete methods and steps of using Pix4 D Mapper software to analyze aerial survey data are studied.Through data analysis,the dynamic management mode of tree barrier defect is established,new defect grading rules are established,and tree barrier control is strengthened.And Maoming Power Supply Bureau of a 500 k V line as an example,root.According to the dynamic management mode and the new defect grading rule,the tree barrier defect management is carried out to test the feasibility and effectiveness of the method proposed in this paper.