Abstract
This paper presents the finite element time domain (FETD) model for numerical solution of the multi-conductor transmission line (MTL) problem. Based on the finite element method (FEM) and the generalised trapezoidal rule, a novel numerical procedure for solution of a system of the telegraph equations is presented. The method presented here is an extension of the method proposed in previous research, where electromagnetic transients in single networks with linear lossy transmission lines have been modelled. In order to show the principles of this numerical method, for sake of simplicity, we restrict the FETD model of the MTL problem only to the low frequency regime. The proposed numerical method has been tested and compared to the analytical and FDTD solutions, and excellent correlation has been demonstrated.
Rino Lucić
Full Professor
Dr. sc. Rino Lucić is a retired professor from the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split. Throughout his career, he taught courses at all study levels and actively participated in the realization of numerous scientific-research projects. As an author or co-author, he has published 41 scientific papers and 16 professional articles, with research interests spanning numerical modeling, transmission lines, finite element method, and power system transient analysis.
Ivica Jurić-Grgić
Full Professor | Department of Theoretical Electrical Engineering and Modelling
Researcher and full professor at the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split. His research focuses on numerical modeling of electromagnetic transients in power systems, with particular emphasis on the development of advanced numerical methods for analyzing electromagnetic transients in multi-conductor transmission lines. His work includes the application of finite element techniques for transient stability analysis of power systems, as well as the enhancement of models for harmonic and transient analysis of grounding systems.