Abstract
Currently the circuit technology of the DC traction power supply system cannot provide the necessary requirements for introduction of high-speed traffic. Numbers of measures and tools have been developed to improve the traction lines that no longer meet current requirements. One of the most promising means for strengthening the traction DC lines is transition to the distributed power supply of the rolling stock. In this article, a comparative analysis was carried out of energy indicators of the classic centralized power system and distributed power systems with use of one aggregate traction substation and with use of the solar generators. That comparative analysis of these systems was performed on a simulation model with the same parameters of the traction line and rolling stock.
Highlights
The present-day of the traction power supply on the DC railways can be characterized by rapid aging of fixed assets of infrastructure
The power of traction power devices is recommended to calculate based on the specific power consumption
There is a gradual evolution of requirements for the traction power supply systems (TPSS): the provision of rated voltage, and providing the necessary energy intensity of the traction line
Summary
The present-day of the traction power supply on the DC railways can be characterized by rapid aging of fixed assets of infrastructure. The European efforts of Ukraine require the implementation of measures for introduction of the high-speed traffic, which requires modernization of existing power supply lines Both the DC and AC power supply systems can provide the high-speed transportation, but to ensure a sustainable high speed one must increase the energy intensity for the electric DC lines in the first place. For the high-speed railways and railways with high intensive traffic and increased carrying capacity, the nature of the electric traction load has a different character Those lines have impulse load that increases peak loads on traction substations, increases losses of voltage and power in TPSS, complicates a current collection and increases the temperature of the contact wires [10]. The purpose of the work is conducting a comparative analysis of the power characteristics of centralized power supply and distributed power supply systems
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