Abstract
The high dynamic power requirements present in modern railway transportation systems raise research challenges for an optimal operation of railway electrification. This paper presents a Monte Carlo analysis on the application of a power transfer device installed in the neutral zone and exchanging active power between two sections. The main analyzed parameters are the active power balance in the two neighbor traction power substations and the system power losses. A simulation framework is presented to comprise the desired analysis and a universe of randomly distributed scenarios are tested to evaluate the effectiveness of the power transfer device system. The results show that the density of trains and the relative branch length of a traction power substation should be considered in the evaluation phase of the best place to install a power transfer device, towards the reduction of the operational power losses, while maintaining the two substations balanced in terms of active power.
Highlights
Electrified railways have constantly raised interest since they are considered one of the most energy-efficient modes of transportation
This paper presents a Monte Carlo analysis on the application of a power transfer device installed in the neutral zone and exchanging active power between two sections
The results show that the density of trains and the relative branch length of a traction power substation should be considered in the evaluation phase of the best place to install a power transfer device, towards the reduction of the operational power losses, while maintaining the two substations balanced in terms of active power
Summary
Electrified railways have constantly raised interest since they are considered one of the most energy-efficient modes of transportation. It is known from the report of [1] that the railway sector is efficient when compared to other means of transportation: the railway sector has a 9% market share in the transportation of passengers and goods in the European Union and this is achieved with a final energy consumption of 2%, in comparison with other sectors. This work is framed within the IN2STEMPO1 project objectives—Innovative Solutions in Future Stations, Energy Metering and Power Supply— in the smart power supply activities. One of the FACTS under study is the Railway Interline Power Flow Converter (RIPFC) [6]. The RIPFC comprehends a power transfer device (PTD) in the neutral zone (NZ), providing doubleside feeding to the catenary branch and respective trains, and reactive power on both sides to stabilize the catenary voltage
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