Medium-voltage DC electric railway systems: A review on feeding arrangements and power converter topologies

IF 1.9 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IET Electrical Systems in Transportation Pub Date : 2022-09-22 DOI:10.1049/els2.12054

Sina Sharifi, Izsák Ferdinánd Ferencz, Tamer Kamel, Dorin Petreuş, Pietro Tricoli

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引用次数: 2

Abstract

Medium-voltage DC (MVDC) electric railway systems have several advantages over conventional DC and AC railway electrification systems. These advantages include higher capacity, possibility of connecting to power networks at lower voltage, removal of neutral sections, smaller line voltage drops, and longer distances between traction power substations. This paper reviews in depth the arrangements for MVDC railway electrification systems proposed in the technical literature and the topologies used for high-power medium-voltage AC-DC converters. With reference to typical requirements of a MVDC railway electrification system, the pros and cons of the topologies are critically analysed. Moreover, this paper reviews the DC-DC power converter topologies for on-board power electronic traction transformers, required to interface the MVDC power supply with the traction motors. Finally, the review highlights the existing challenges of MVDC electric railway systems and the potential areas of future research.

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中压直流电力铁路系统：馈电布置和功率变换器拓扑综述

与传统的直流和交流铁路电气化系统相比，中压直流(MVDC)铁路电气化系统具有许多优点。这些优点包括更高的容量，以更低的电压连接到电网的可能性，去除中性部分，更小的线路电压降，以及牵引变电站之间的距离更长。本文深入回顾了技术文献中提出的MVDC铁路电气化系统的布置和大功率中压交直流变换器的拓扑结构。结合MVDC铁路电气化系统的典型要求，详细分析了各种拓扑结构的优缺点。此外，本文还回顾了车载电力电子牵引变压器的DC-DC功率转换器拓扑结构，该变压器需要将MVDC电源与牵引电机连接起来。最后，综述强调了MVDC电气化铁路系统存在的挑战和未来研究的潜在领域。

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