RAIL TRACK DISTRIBUTED TRANSMISSION-LINE IMPEDANCE AND ADMITTANCE - THEORETICAL MODELING AND EXPERIMENTAL RESULTS

被引：37

作者：

HILL, RJ

CARPENTER, DC

机构：

[1] School of Electrical Engineering, University of Bath, Claverton Down, Bath, BA2 7AY, U.K.

[2] School of Electrical Engineering, University of Bath, Claverton Down, Bath, BA2 7AY, U.K.

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 1993年 / 42卷 / 02期

关键词：

D O I：

10.1109/25.211460

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Frequency-dependent distributed transmission line self and mutual impedances and admittances for a single-track, power-rail electrified railway are obtained by experiment and modeling. Impedance results obtained by numerical calculation from an electromagnetic minimum energy field solution using the finite-element method are compared with analytic impedance models based on the Carson-Pollaczek equations for a stratified, weakly conducting ground and with practical experimental measurements made on a short length of rail track. The running rail self conductances and the power rail to running rail mutual capacitances are also evaluated by the finite element method and compared with experimental measurements. A physical interpretation of the results is given in terms of conductive and induced ground currents caused by finite ground conductivity and relative permittivity.

引用

页码：225 / 241

页数：17

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