Finite-Element Models for Open-Air Power Lines in Broadband PLC

Abstract

This paper describes the application of finite elements for the modeling and simulation of overhead power-line structures in the high-frequency range, using existing computing tools and software. This paper treats specifically non-uniform wire arrangements common in overhead power networks, including line junctions, bends, neutral grounding, etc., which disturb the transmission of signals, especially at high frequencies, increasing reflections, radiation, and mode conversion. The proposed models could be used in applications associated with broadband communication over power lines providing a reliable representation for assessing the capability of the overhead network to carry high-frequency signals and estimate the resulting electromagnetic emissions