Results 11 to 20 of about 1,819 (220)
Research on Protection of a Three-Level Converter-Based Flexible DC Traction Substation System [PDF]
SensorsWith the expansion of urban rail transit, increased train operation density, and the large-scale grid integration of renewable energy such as offshore photovoltaic power, traction power supply systems face stricter requirements for operational safety ...
Peng Chen +3 more
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Features of construction of modern systems for automatic power redundancy of traction substations DC [PDF]
Омский научный вестник, 2022 The article presents the results of studies on improving the efficiency of electrical power redundancy systems in power supply systems of railway DC vehicles by improving the technological modes of traction substations.
S. G. Shantarenko
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Unproductive electric losses in the traction power of DC supply system
Science and Transport Progress, 2010 The research results specifying to the consumption of inactive (reactive by Fryze) power in a DC system of electric propulsion are stated in the article. It is shown that this consumption brings to considerable additional losses of electric energy in the system.
Petrov, A. V., Kostin, M. O.
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Energies, 2021 To relieve the contradiction between supply and demand, a multi-port power conditioner (MP-PC) and control strategy with renewable energy access for a railway traction system is presented, which is mainly composed of full-bridge-based MMC and isolated DC/
Fujun Ma +5 more
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Algorithm for calculating the rail-ground potential in heavy load conditions [PDF]
E3S Web of Conferences, 2021 Increased freight turnover on railway transport inevitably leads to increased traction current in DC and AC traction power supply systems. The increase in traction current is already causing problems related to the normal operation of the 25 kV AC ...
Ignatenko Ivan +3 more
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Study on self-adaptive real-time dynamic modeling approach of metro traction power supply system
机车电传动, 2022 The varying number and location of traction substations along urban rail transit system lines, the time-varying characteristics of the DC traction power supply system network structure caused by continuous operation of trains, the DC traction network ...
TAO Yan
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Research on uninterruptable power supply technology for auxiliary winding of electric locomotive while passing the neutral section [PDF]
Railway SciencesPurpose – Auxiliary power system is an indispensable part of the train; the auxiliary systems of both electric locomotives and EMUs mainly are powered by one of the two ways, which are either from auxiliary windings of traction transformers or from DC ...
Yuliang Du
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IET Electrical Systems in Transportation, 2022 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 ...
Sina Sharifi +4 more
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MODELING OF DC TRACTION POWER SUPPLY SYSTEM WITH 6-PULSE CONVERTERS
Modern Technologies and Scientific and Technological Progress, 2023 The technique of computer modeling of DC traction power supply system’s modes in phase coordinates implemented in Fazonord software package is considered. The developed computer models can be used to determine the parameters of the DC and AC current subsystems mode and also to determine the mode at higher ...
Andrey Kryukov, Quoc Nguyen, Zyuy Chan
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A Quick Identification Method of AC andDC Power Supply Systems for Electric Locomotive
Kongzhi Yu Xinxi Jishu, 2021 In railway power system, where AC and DC systems co-exist, electric locomotives need to quickly change the working mode of traction system in accordance with the power supply systems.
ZOU Donghai +6 more
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