Finite Element Analysis Of Transmission Line Galloping

Transmission lines are often affected by wind, ice random loads, in these loads, the damage caused by transmission line golloping is more ande more serious ,which do harm to power system, the purpose of this article to analyze the results of golloping is providing a basis for the power sector through the process of computer simulation.Using non-linear theory of the iced to establish conductor equations, first through a small vertical parabola to simplify cross-ratio transmission line, using multi-scale method to be in-plane single-mode equation, and finally across the MATHEMATICA program of incentives within the system, the dynamic wind loads conducted a numerical analysis, derived analytical solution and draw the phase diagram and the time course of wire diagrams and a variety of factors and amplitude relationship.In this paper, using three-dimensional beam element to simulate single-span and multi-span transmission line for accurate initial shape of transmission line, establish our own unique and useful three-dimensional finite element model which consider horizon,vertical and reverse three degree of freedom of transmission lines as the base of kinetic analysis. And this paper, the finite element method to establish the model is relatively simple and method of calculation converges quickly, usually get final state through carrying out several non-linear solution.Analysis the mechanism of high-voltage transmission lines, as well as simulate the whole process, using the eatablished finite element model of static , the preparation of dynamic analysis used to calculate the wire procedures, verify the accuracy of the calculated results of this procedure by comparison with the literature examples,adjust the parameters, find the wind speed, angle of attack, tension, the length of wire conditions and other factors on the different effects of golloping and verify the existing mechanism of transmission line in the end.