An In-Depth Investigation of Innovative Electric Traction Power Supply Systems for Mass Rapid Transit

Abstract

This article discusses the outcomes of a study conducted to explore new power supply sources for subway trains. The power supply system for traction is an integral and inseparable component of subway rail infrastructure, encompassing both its management and operation. As a result, the specific choice of a power supply type has a lasting impact, either positive or negative, on the overall performance of a subway system. Consequently, researching power supply for traction presents a considerably more intricate challenge when compared to other railway transportation systems. In this study, the results obtained shed light on the pros and cons of utilizing the 25,000 V / 50 Hz system in comparison with the 1,500 V DC system, with a particular focus on traffic capacity and the efficiency of supplying traction power.