Results 81 to 90 of about 136,368 (211)
A compact lightweight multipurpose ground-penetrating radar for glaciological applications
, 2011 We describe a compact lightweight impulse radar for radio-echo sounding of subsurface structures designed specifically for glaciological applications. The radar operates at frequencies between 10 and 75 MHz.
Frolovskiy, K. +4 more
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IEEE AccessThe electrified railways in mountainous areas are faced with multiple difficulties such as weak power grids, special climatic environments, complex and dangerous geographical conditions, which poses a great challenge to the reliable power supply of the ...
Like Pan +4 more
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Study on Resonance Mechanism and Suppression Scheme of Railway Based on Hefei-Bengbu Line
机车电传动, 2017 Taking Hefei-Bengbu line as an example, the resonant characteristics of the traction power supply system were analyzed theoretically. It was proved that the harmonics were related to the length of the supply arm, locomotive location, characteristics ...
YE Tao
doaj
Prediction of Balanced Current in Bilaterally-fed AC Traction Power Supply System
机车电传动, 2020 The feasibility of bilaterally-fed AC traction power supply system is up to the balanced current. A method was proposed in this paper to predict the balanced current i.e., measuring the voltages of the traction power networks on both sides in the section
Zhicheng ZHOU, Qingan MA
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A state-of-the-art review on torque distribution strategies aimed at enhancing energy efficiency for fully electric vehicles with independently actuated drivetrains [PDF]
, 2019 © 2019, Levrotto and Bella. All rights reserved. Electric vehicles are the future of private passenger transportation. However, there are still several technological barriers that hinder the large scale adoption of electric vehicles. In particular, their
Lenzo, Basilio, Sforza, A, Timpone, F
core
Application of Bidirectional Converters in Urban Rail Transit Power Supply Systems
Chengshi guidao jiaotong yanjiu[Objective] To address the challenges about renewable energy utilization and significant grid voltage fluctuations in urban rail transit power supply system, a power supply solution based on bidirectional converter technology for traction system is ...
Mao WANG +6 more
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Electric energy storage in DC traction power supply systems
, 2018 Electric energy storage systems have been known for a long time. In order to store energy the following solutions may be used: mechanical (rotating wheels, compressed air), chemical (hydrogen), electrical (batteries and supercapacitors), and others. Supercapacitors and batteries are most common in electric traction systems.
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The limit of power flow in the traction power supply system
Bulletin of scientific research resultsObjective: the concept of the limit of power flow is widely used in general industrial power engineering to compare different ways of amplifying an electric network. In this paper, it is proposed to use it to evaluate the operation of traction networks of railways.
Mihail Ivanov, Vladimir Seronosov
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机车电传动, 2018 In order to develop a comprehensive compensation system for efficient operation of the main transformer of the traction power supply system in the locomotive and rolling stock factory, three domestic commonly used factory traction power supply system ...
REN Tao
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Chengshi guidao jiaotong yanjiuObjective The AC-DC (alternating current-direct current) dual-power traction power supply system depot features densely distributed tracks and relatively close catenary clearance.
XING Jiang, ZHAO Jinyu
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