scholarly journals Modeling of traction power supply systems for movement of high-speed trains

2018 ◽  
Vol 216 ◽  
pp. 02006
Author(s):  
Aleksandr Cherepanov ◽  
Vasily Zakaryukin ◽  
Andrey Kryukov
Keyword(s):  
Power Supply ◽  
High Speed ◽  
Rolling Stock ◽  
Software Complex ◽  
Positive Effects ◽  
High Speed Trains ◽  
Traction Power Supply ◽  
Traction System ◽  
Supply Systems ◽  
Traction Power

Upgrading of traction power supply systems will be required to transfer electrified railway lines to high-speed traffic. Coaxial cables and balancing transformers can be used as technical upgrading means. The article presents the results of computer simulation in the Fazonord software complex of the traditional 2x25 kV traction system, as well as systems with coaxial cables and Woodbridge symmetric transformers. Simulation results showed that the use of cables contributes to a significant increase in the level of voltage on current collectors of electric rolling stock. Use of modified Woodbridge transformers makes it possible to reduce the imbalance coefficient by the reverse sequence on high voltage buses of traction substations. However, the reduction is insignificant and depends on the modes of movement of trains in adjacent inter-station zones. The biggest positive effects occur in the integrated application of balancing transformers and coaxial cables.

MODELLING OF TRACTION POWER SUPPLY SYSTEMS MODES AT THE MOVEMENT OF HIGH-SPEED TRAINS

2017 ◽  
Vol 3 (55) ◽  
Author(s):  
Zakaryukin V.P. ◽  
◽  
Kryukov A.V. ◽  
Avdienko I.M. ◽  
Bezridniy E.S. ◽  
...  
Keyword(s):  
Power Supply ◽  
High Speed ◽  
High Speed Trains ◽  
Traction Power Supply ◽  
Supply Systems ◽  
Traction Power

New Surge Counter for the ZnO Surge Arrester in Traction Power Supply Systems of High Speed Railway

2018 ◽  
Vol 138 (2) ◽  
pp. 69-75 ◽  
Author(s):  
Tetsushi Watanabe ◽  
Tomohiro Owaku ◽  
Masayuki Seto ◽  
Hitoshi Hayashiya ◽  
Yusuke Takido ◽  
...  
Keyword(s):  
Power Supply ◽  
High Speed ◽  
High Speed Railway ◽  
Traction Power Supply ◽  
Supply Systems ◽  
Traction Power

Development of software elements for improvement of calculation of traction power supply system

2021 ◽  
pp. 64-68
Author(s):  
Ivan Vladimirovich Ignatenko ◽  
◽  
Evgeniy Yuryevich Tryapkin ◽  
Sergey Anatolyevich Vlasenko ◽  
◽  
...  
Keyword(s):  
Power Supply ◽  
High Speed ◽  
Power Supply System ◽  
Heavy Traffic ◽  
Supply System ◽  
Software Complex ◽  
Software Products ◽  
Traction Power Supply System ◽  
Traction Power Supply ◽  
Traction Power

Nowadays KORTES remains the main software complex for calculation of traction power supply system. However, in regard with the development of software and hardware facilities and the necessity to gain precise results the most important task is the improvement of separate software products aimed at refinement of calculation and solution of such tasks as thermal processes in traction power supply system, change of parameters at high-speed and heavy traffic and etc. The paper presents an algorithm developed for power supply system of mainline railway section, which allows calculating required power of transformers installed in traction substation not only for classic, but also for other schemes of connection of transformer winding.

scholarly journals Energy Characteristics of the DC Distributed Power Supply Systems

2021 ◽  
Vol 23 (2) ◽  
pp. C37-C43
Author(s):  
Viktor Sychenko ◽  
Valeriy Kuznetsov ◽  
Artur Rojek ◽  
Petro Hubskyi ◽  
Yevhen Kosariev
Keyword(s):  
Comparative Analysis ◽  
Power Systems ◽  
Power Supply ◽  
High Speed ◽  
Rolling Stock ◽  
Distributed Power ◽  
Traction Power Supply System ◽  
Distributed Power Systems ◽  
Traction Power Supply ◽  
Supply Systems

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.

scholarly journals A power-quality monitoring and assessment system for high-speed railways based on train-network-data center integration

2021 ◽  
Vol 29 (1) ◽  
pp. 30-41
Author(s):  
Jun Zhu ◽  
Haitao Hu ◽  
Zhengyou He ◽  
Xiaomin Guo ◽  
Weiguo Pan
Keyword(s):  
Real Time ◽  
Power Quality ◽  
Monitoring System ◽  
Power Supply ◽  
Data Center ◽  
High Speed ◽  
Real Time Monitoring ◽  
Traction Power Supply ◽  
Supply Systems ◽  
Traction Power

AbstractIn recent years, with the rapid development of high-speed railways (HSRs), power interruptions or disturbances in traction power supply systems have become increasingly dangerous. However, it is often impossible to detect these faults immediately through single-point monitoring or collecting data after accidents. To coordinate the power quality data of both traction power supply systems (TPSSs) and high-speed trains (HSTs), a monitoring and assessing system is proposed to access the power quality issues on HSRs. By integrating train monitoring, traction substation monitoring and data center, this monitoring system not only realizes the real-time monitoring of operational behaviors for both TPSSs and HSTs, but also conducts a comprehensive assessment of operational quality for train-network systems. Based on a large number of monitoring data, the field measurements show that this real-time monitoring system is effective for monitoring and evaluating a traction-network system.

scholarly journals Electromagnetic safety of high voltage traction networks

2019 ◽  
Vol 139 ◽  
pp. 01067
Author(s):  
Natalya Buyakova ◽  
Vasilij Zakaryukin ◽  
Andrey Kryukov
Keyword(s):  
Magnetic Field ◽  
High Voltage ◽  
Power Supply ◽  
Simulation Modeling ◽  
Ground Surface ◽  
Software Application ◽  
Traction Power Supply ◽  
Traction System ◽  
Supply Systems ◽  
Traction Power

The article provides procedure for simulation modeling of traction power supply systems which allows analyzing electromagnetic safety conditions in perspective high voltage traction net- works. Modeling of electromagnetic fields in the Fazonord software application proved that 50 kV traction system is characterized by the highest electromagnetic strength at a height of 1.8 m above the ground surface, while 2x25 kV system is characterized by the lowest one. Traditional traction system with 27.5 kV voltage is the worst in terms of magnetic field strength, while 2x50 kV is the best; auto- transformer systems of traction power supply create magnetic fields due to demagnetizing effect of power leads.

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