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Synergy of the future: high voltage insulated power cables and railway-highway structures

机译：未来的协同效应：高压绝缘电力电缆和铁路高速公路结构

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摘要

The rationalisation of the territorial resources leads to consider carefully the possibilities of using motorway and railway infrastructures (existing or planned ones) for cable line installation within them. The full compatibility of such synergy `transport - electrical power transmission' involves different branches of engineering. The study provides an overview of the research undertaken for a fully reliable use of this combination. The manuscript aims at highlighting a procedural approach that should be followed in order to analyse all the key elements involved in the safe operation of power transmission lines hosted in transport infrastructures. First, the geometrical compatibility between different types of power transmission technologies, (i.e. gas insulated lines and high-voltage direct/alternating current insulated cable lines), and transport infrastructures (i.e. motorway galleries, railway galleries and railway prospection tunnels) is considered. Subsequently, the behaviour and magnitude of the magnetic field generated by the different power transmission technologies inside the transport infrastructures are presented. Moreover, the study analyses the effects of a phase-to-screen short circuit that could occur inside the hosting facility. Finally, an analysis of the reliability of the synergy between power transmission systems and transport infrastructures is discussed.
机译：领土资源的合理化导致需要仔细考虑使用高速公路和铁路基础设施（现有或计划中的基础设施）在其中进行电缆安装的可能性。这种协同作用的“运输-电力传输”的完全兼容性涉及工程的不同分支。该研究概述了为完全可靠地使用此组合所进行的研究。该手稿旨在强调一种应遵循的程序性方法，以分析运输基础设施中承载的输电线路安全运行所涉及的所有关键要素。首先，考虑了不同类型的动力传输技术（即气体绝缘线和高压直流/交流绝缘电缆线）与运输基础设施（即高速公路廊，铁路廊和铁路探矿隧道）之间的几何兼容性。随后，介绍了由运输基础设施内部的不同动力传输技术产生的磁场的行为和强度。此外，研究分析了主机设施内部可能发生的相屏短路的影响。最后，讨论了输电系统和运输基础设施之间协同作用的可靠性分析。

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