Results 1 to 10 of about 6,853,746 (262)

A Harmonic Impedance Identification Method of Traction Network Based on Data Evolution Mechanism

open access: yesEnergies, 2020
In railway electrification systems, the harmonic impedance of the traction network is of great value for avoiding harmonic resonance and electrical matching of impedance parameters between trains and traction networks.
Ruixuan Yang, Fulin Zhou, Kai Zhong
doaj   +2 more sources

Power Flow Calculation and Conductor Temperature Change Process Analysis of Single-Line Direct Supply Traction Network

open access: yesIEEE Access, 2021
The accuracy of the power flow calculation results of a traction network is closely related to the impedance parameters of the transmission wires of the network, and such parameters change dynamically under the influence of current and geographical and ...
Lijun Sun   +5 more
doaj   +2 more sources

Resonance in alternating current traction network [PDF]

open access: yesОмский научный вестник, 2020
The article provides an analysis of electromagnetic processes in an alternating current traction network of electric railways taking into account its distributed parameters that determine wave processes, which are one of the causes of resonance ...
T. V. Kovaleva   +2 more
doaj   +2 more sources

Accounting power supply schemes for traction substations in the calculation of short circuits in the AC traction network

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2019
When calculating short-circuit currents in the AC traction network, it is assumed that each of the traction substations receives power from uncoupled external power supply sources with known resistances. In some cases, especially when powering a group of
Yu. I. Zharkov   +2 more
doaj   +2 more sources

The method of calculating power supply for monitoring and metering devices of DC traction network based on serial chain of voltage converters [PDF]

open access: yesОмский научный вестник, 2021
For organization of power supply of devices for monitoring and accounting of electric energy for railway traction networks of direct current, the topology of the power source based on a serial chain of voltage converters can be used.
Yu. V. Plotnikov
doaj   +1 more source

Power supply for monitoring and metering devices of DC traction network based on serial chain of voltage converters [PDF]

open access: yesОмский научный вестник, 2021
When designing devices for monitoring and accounting of electric energy for railway traction networks of direct current, one of the main tasks is to create a source for their power supply.
Yu. V. Plotnikov
doaj   +1 more source

Determination of the rail-to-earth transition resistance of the ballastless track and influence of the resistance on the current spreading in the subgrade

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2022
Introduction. The rail-to-earth transition resistance is an important parameter of electrified railways, which directly effects the electrical safety level of the traction network and the potential distribution in the upper structure track area.
A. B. Kosarev   +4 more
doaj   +1 more source

Transient Fault Signal Identification of AT Traction Network Based on Improved HHT and LSTM Neural Network Algorithm

open access: yesEnergies, 2023
This paper aims to address the difficult to pinpoint fault cause of the full parallel AT traction power supply system with special structure. The fault characteristics are easily covered up, and high transition impedance only affects the singularity of ...
Huan Zhou   +4 more
semanticscholar   +1 more source

Ground fault identification and location of autotransformer traction network for high‐speed railway based on multi‐terminals synchronous measure information

open access: yesIET Generation, Transmission & Distribution, 2023
With the rapid development of high‐speed railway, the auto‐transformer traction network (ATN) is also expanding. However, due to the improved performance of electric multiple units (EMUs) and the non‐linear relationship between impedance and ground fault
Shuai Wang   +4 more
semanticscholar   +1 more source

Dynamic rating method of traction network based on wind speed prediction [PDF]

open access: yesArchives of Electrical Engineering, 2022
The operating temperature of the transmission line in the traction network is affected by geographical and climatic factors, especially the wind speed. To make better use of the thermal stability transmission capacity of the traction power supply system ...
Zhaoxu Su   +3 more
doaj   +1 more source

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