Vol. 102

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2021-04-10

Time-Domain Analysis for the Coupling Problem of Overhead Lines Above Multilayered Earth

By Ayoub Lahmidi and Abderrahman Maaouni
Progress In Electromagnetics Research M, Vol. 102, 39-51, 2021
doi:10.2528/PIERM21021603

Abstract

This paper investigates the effect of an external plane wave on a Multi-conductor transmission line (MTL) located above a multilayer soil directly in the time domain. An improved finite-difference time-domain (FDTD) method is used, in conjunction with the Vector Fitting (VF), to obtain the recursion relations of voltages and currents along the line by discretizing the equations in time and one-dimensional space. The source terms of the coupling equations are efficiently obtained in the time domain based on the Gaver-Stehfest algorithm. An equivalent model is also established in this work, where the geometry with three conductors is reduced to two conductors. Finally, some examples are presented to illustrate the effect of the soil and the plane wave on the transient.

Citation


Ayoub Lahmidi and Abderrahman Maaouni, "Time-Domain Analysis for the Coupling Problem of Overhead Lines Above Multilayered Earth," Progress In Electromagnetics Research M, Vol. 102, 39-51, 2021.
doi:10.2528/PIERM21021603
http://jpier.org/PIERM/pier.php?paper=21021603

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