Open AccessRailway track transmission line model: calculation of rail conductance by means of boundary element method
Author(s) -
Lucca Giovanni
Publication year - 2017
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2017.0165
Subject(s) - transmission line , boundary element method , track (disk drive) , conductance , line (geometry) , electric power transmission , boundary (topology) , transmission (telecommunications) , electrical engineering , acoustics , electronic engineering , engineering , computer science , finite element method , structural engineering , physics , mathematical analysis , mathematics , mechanical engineering , geometry , condensed matter physics
The study presents a novel method, based, on one hand on the transmission line model and on the other hand on boundary element method to calculate the per unit length conductances of a pair of conductively coupled rails by taking into account the presence of important elements of the track, such as sleepers and ballast. Basic premise to this study is that the rails can be represented as a distributed electrical circuit equivalent to a multi‐conductor transmission line carrying the transverse electric and magnetic mode. The analysis is done under DC hypothesis but it can be applied also to power frequencies. The results of the proposed calculation method have been compared with the data available in literature obtaining a fair agreement.