Results 81 to 90 of about 144,321 (212)

Electric vehicle possibilities using low power and light weight range extenders [PDF]

open access: yes, 2014
Electric cars have the disadvantage of a limited range, and drivers may experience a range anxiety. This range anxiety can be solved by adding a range extender. But, the range extender should be light so as not to significantly increase the weight of the
Gebremichael, Mulugeta Gebrehiwot   +1 more
core  

Study on self-adaptive real-time dynamic modeling approach of metro traction power supply system

open access: yes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
doaj  

Application of Bidirectional Converters in Urban Rail Transit Power Supply Systems

open access: yesChengshi 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
doaj   +1 more source

Evaluation of Reliability for Traction Power Supply System of Electric Railways

open access: yes机车电传动, 2020
With the consideration of the traction power supply characteristics of Chinese electric railways, according to the features of power supply design and operation, the demand for reliability data acquisitions and the calculation methods of reliability ...
Shuo HUANG, Mingli WU
doaj  

Low-frequency oscillation of train–network system considering traction power supply mode

open access: yesRailway Engineering Science
The low-frequency oscillation (LFO) has occurred in the train–network system due to the introduction of the power electronics of the trains. The modeling and analyzing method in current researches based on electrified railway unilateral power supply ...
Yuchen Liu   +3 more
doaj   +1 more source

Идентификация тока источника при регулировании напряжения звена постоянного тока преобразователя частоты в системе векторного управления [PDF]

open access: yes, 2013
The researches of transvector system with the combined formation of asynchronous machine stator voltage in the traction electric drive with supply from charge battery are received in paper, providing the exclusion of current sensor at DC-link on the ...
Мирошник, Денис Николаевич
core  

A compact lightweight multipurpose ground-penetrating radar for glaciological applications

open access: yes, 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
core   +2 more sources

The limit of power flow in the traction power supply system

open access: yesBulletin of scientific research results
Objective: 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
openaire   +1 more source

A state-of-the-art review on torque distribution strategies aimed at enhancing energy efficiency for fully electric vehicles with independently actuated drivetrains [PDF]

open access: yes, 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  

RELIABILITY AND QUALITY OF THE POWER SUPPLY FOR RAIL TRANSPORT

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2017
The subject of this paper deals with the reliability of the power supply and quality of electricity on the railway networks. The paper discusses the impact of changes in the area of traction substation load on parameters characterizing the quality of ...
Zbigniew OLCZYKOWSKI   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy