Results 11 to 20 of about 1,997 (263)

INFLUENCE OF ROLLING STOCK VIBROACOUSTICAL PARAMETERS ON THE CHOICE OF RATIONAL VALUES OF LOCOMOTIVE RUNNING GEAR

open access: yesNauka ta progres transportu, 2016
Purpose.The success of the traffic on the railways of Ukraine depends on the number and the operational fleet of electric locomotives. Today, the locomotive depot exploit physically and morally outdated locomotives that have low reliability ...
Yu. V. Zelenko   +2 more
doaj   +1 more source

Feedforward-loop phase-locked loop based estimation scheme for sensorless IPMSM drive system

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
The existence of mechanical speed sensors brings challenges of system reliability. Therefore, drives without speed and position sensors attract much popularity in interior permanent-magnet synchronous motor (IPMSM) drive system. This paper provides a new
Wang Li, Jixiong Jiang, Junwen Mu
doaj   +1 more source

Evaluation Model of Loop Stray Parameters for Energy Storage Converter of Hybrid Electric Locomotive

open access: yesIEEE Access, 2020
When the silicon carbide (SiC) power module is applied to the energy storage converter of a hybrid locomotive, under the action of di/dt and loop stray inductance, it is easy to produce excessively high voltage overshoot, which affects the battery life ...
Yunxin Fan   +6 more
doaj   +1 more source

On the issue of increasing operational energy efficiency of eight-axle passenger DC electric locomotives

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2021
Mass of a passenger train and, accordingly, number of cars in its composition is selected based on the amount of passenger traffic on the section, determined by the seasonal demand for transportation in each direction.
I. N. Nikonchuk
doaj   +1 more source

Fatigue research of metro car body based on operational loads [PDF]

open access: yesRailway Sciences
Purpose – The principle of infinite life design currently directs fatigue resistance strategies for metro car bodies. However, this principle might not fully account for the dynamic influence of operational loads and the inevitable presence of defects ...
Xihong Jin, Feng Guo
doaj   +1 more source

Design of safety protection system of mine electric locomotive

open access: yesGong-kuang zidonghua, 2016
In view of problems that existing coal mine electric locomotive safety control cannot effectively prevent red light running, rear-end collision and collision, a kind of safety protection system of mine electric locomotive was designed.
LI Junhong
doaj   +1 more source

Junction Temperature Control of a Traction Inverter Based on Three-Level Active Neutral Point-Clamping

open access: yesEnergies
In this study, we propose an active junction temperature control method specifically tailored for traction inverters based on active neutral point-clamped (ANPC) three-level topology.
Haitao Liu   +4 more
doaj   +1 more source

Correction: Liu et al. Junction Temperature Control of a Traction Inverter Based on Three-Level Active Neutral Point-Clamping. Energies 2025, 18, 2241

open access: yesEnergies
The authors wish to make the following corrections to this paper [...]
Haitao Liu   +4 more
doaj   +1 more source

Traction capabilities of a dual-voltage electric locomotive 2EV120 on the West Siberian Railway

open access: yesMATEC Web of Conferences, 2018
The paper discusses the traction parameters of an electric locomotive of a new generation. The existing schemes of sections served by electric locomotives and locomotive crews at the studied railway operating domain are presented.
Domanov Kirill   +2 more
doaj   +1 more source

Active Flow Control for High-Speed Trains: From Local Flow Manipulation to Mission-Adaptive Aerodynamic Control

open access: yesFluids
High-speed train aerodynamics have mainly been improved by passive design methods, such as streamlined noses, local fairings, and surface smoothing. These methods have achieved clear benefits, but several important aerodynamic problems remain difficult ...
Li Sheng   +4 more
doaj   +1 more source

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