Results 21 to 30 of about 516 (189)
Voltage transient management for Alternating Current trains with vacuum circuit breakers [PDF]
, 2021 Alternating current power supplies and rolling stock with 25 kV (50 or 60 Hz) and 15 kV (16.7 Hz) traction systems do not have the characteristics and behaviour of a typical three‐phase medium‐voltage distribution system. Switching inductive loads with a
Moore, Thomas +2 more
core +1 more source
Operation and Control of an Active Power Collector for Roadside Feeding Electric Road System
IET Electrical Systems in Transportation, Volume 2023, Issue 1, 2023., 2023 The integration of electric vehicles (EVs) as an environmentally sustainable alternative to traditional fossil fuel cars faces a range of technological obstacles, including battery technology, charging infrastructure, and standardization. Dynamic conductive road charging (DCRC) of EVs at high speed has the potential to overcome the technical ...
Saleh A. Ali +5 more
wiley +1 more source
IET Electrical Systems in Transportation, Volume 2023, Issue 1, 2023., 2023 Droppers and jumpers are important components of railway overhead line electrification. Their effective maintenance is critical for the railway’s safe and reliable operation; the consequences of their failure can be disproportionally serious. This paper systematically analyses the components’ failure by applying the method of failure modes and effects ...
Jingyu Du +5 more
wiley +1 more source
Power Quality in Electrified Transportation Systems [PDF]
, 2022 "Power Quality in Electrified Transportation Systems" has covered interesting horizontal topics over diversified transportation technologies, ranging from railways to electric vehicles and ships.
core +1 more source
Energies, 2022 The transient electromagnetic disturbance generated by arcing discharge between the pantograph and catenary can pose a significant risk to the safe operation of electrified railways.
Mengzhe Jin +6 more
doaj +1 more source
Research on time–frequency characteristics of contact force based on wavelet transform
IET Electrical Systems in Transportation, Volume 12, Issue 4, Page 287-297, December 2022., 2022 Abstract When a train runs at high speed, affected by the structural characteristics of the catenary, the contact force changes periodically with span and dropper spacing. However, as the running speed of the train increases, the periodic signal of the contact force changes owing to the fluctuation of the catenary and the vibration of the pantograph ...
Fang He, Jian Zhang
wiley +1 more source
The Electrical Behaviour of Railway Pantograph Arcs
Energies, 2023 Electric arcing is an unavoidable consequence of the current collection process by sliding contact in railways and metros, and in general in many electrified transportation systems (ETSs). The most relevant consequences in an electrical perspective are: the occurrence of transients triggering resonant behaviour and transient responses, reduction of the
openaire +3 more sources
Synchronized Measurement System for Railway Application [PDF]
, 2018 In the light of the recent European directives that regulate railway networks in EU, in order to implement the monitoring and controlling of the railways power supply network, an accurate and reliable knowledge of the exchanged energy between the train
Delle Femine, A. +5 more
core +1 more source
Enhancing pantograph-catenary dynamic performance using an inertance-integrated damping system [PDF]
, 2021 For modern electrical rail systems, the pantograph-catenary dynamic performance is one of the most critical challenges. Too much fluctuation in contact forces leads to either accelerated wear of the contacting components or losses of contact and ...
Antunes, Pedro +9 more
core +2 more sources
Dynamic analysis using finite elements to calculate the critical wear section of the contact wire in suburban railway overhead conductor rails [PDF]
, 2008 The purpose of this study is to determine the critical wear levels of the contact wire of the catenary on metropolitan lines. The study has focussed on the zones of contact wire where localised wear is produced, normally associated with the appearance of
Andrews H. I. +7 more
core +2 more sources