MODELAGEM COMPUTACIONAL PARA AVALIAÇÃO DA INFLUÊNCIA DO CAMPO MAGNÉTICO EM FUNÇÃO DA GEOMETRIA DA TORRE DE UMA LINHA DE TRANSMISSÃO OPERANDO EM REGIME PERMANENTE

Abstract

This work performs the mathematical modeling of the magnetic field produced due to the high currents of a transmission line in Matlab® for the purpose of analyzing the influence of the transmission line geometry on the final value of the magnetic field in the band of the line itself. The modeling is done through equations referenced and later applied to a script in Matlab®. In order for this research work to be admissible, it is necessary that some steps are taken, which together correspond to the adopted methodology, characterizing the magnetic field of the transmission lines, operating in steady state, showing the electromagnetic modeling between transmission lines through Matlab® by the equations of Ampere, Maxwell, by the method of the images and the effect of the soil is considered in the complex plane of return according to Deri, since the magnetic field penetrates the ground even at low frequencies. With the validation of the calculations and programs developed, by means of comparison with already existing results in the literature and studies already carried out in the area. With this work the influence of the transmission line geometry in the magnetic field is verified and such results are intended to be shown through graphs and tables. For future analysis the developed script can be used to check the conformity of magnetic field values with regulatory standards.