Results 11 to 20 of about 1,683 (171)

Research on time–frequency characteristics of contact force based on wavelet transform

IET Electrical Systems in Transportation, 2022
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.
Fang He, Jian Zhang
doaj   +2 more sources

Wavelength Component Analysis of the Pantograph-catenary Contact Force Based on EEMD-SPWVD

DEStech Transactions on Computer Science and Engineering, 2018
The contact force between pantograph and catenary in high-speed railways is an important index to characterize the quality of current receiving. In this paper, the EEMD-SPWVD analytic method was proposed to analyze the inherent and abnormal wavelength components of pantograph-catenary contact force (PCCF).
YAN-LONG SHEN, YING WANG, XIAO-QIANG CHEN, LI CAO, MING-XIN TIAN   +4 more
openaire   +3 more sources

Intelligent Contact Force Regulation of Pantograph–Catenary Based on Novel Type-Reduction Technology [PDF]

Electronics, 2022
In this paper, an intelligent control scheme is proposed to suppress vibrations between the pantograph and the catenary by regulating the contact force to a reference value, thereby achieving stable current collection. In order to reduce the computational cost, an interval Type-2 adaptive fuzzy logic control with the Moradi–Zirhohi–Lin type reduction ...
Tsung-Chih Lin, Chien-Wen Sun, Yu-Chen Lin, Majid Moradi Zirkohi   +3 more
openaire   +2 more sources

Robust Control of Pantograph–Catenary Contact Force Under High Disturbance: A Comparative Study

Journal of Information Systems Engineering and Management
This paper presents a comparative study of three control strategies for regulating the contact force in pantograph–catenary systems operating under high disturbances and nonlinear dynamics. A high-fidelity multi-layer physical model is developed to capture key system behaviors, including severe catenary oscillations and variations in pantograph mass ...
N. Van
openaire   +2 more sources

Disturbance Observer-Based Sliding Mode Controller for Regulating Pantograph–Catenary Contact Force

IFAC-PapersOnLine, 2023
Huayu Duan, Roger Dixon, Edward Stewart, Li Linxiao, Osama Olaby   +4 more
openaire   +2 more sources

Active control of contact force for high-speed railway pantograph-catenary based on multi-body pantograph model

Mechanism and Machine Theory, 2017
Abstract Active control of pantograph is a promising approach in improving the current collection quality of high-speed railway pantograph-catenary system. To address the shortcomings of the lumped-parameter pantograph model used in previous studies, a multi-body model of pantograph is established, and two configurations of installing actuators on a ...
Song, Yang, Ouyang, Huajiang, Liu, Zhigang, Mei, Guiming, Wang, Hongrui, Lu, Xiaobing   +5 more
openaire   +2 more sources

Influence of typical faults over the dynamic behavior of pantograph-catenary contact force in electric rail transport

IOP Conference Series: Materials Science and Engineering, 2017
The quality of electric energy capture and also the equipment operational safety depend essentially of the technical state of the contact line (CL). The present method for determining the technical state of CL based on advance programming is no longer ...
S Rusu-Anghel, A Ene
openaire   +2 more sources

Tuning of controller parameters for suppressing low frequency oscillations in electric railway traction networks using meta‐heuristic algorithms

IET Electrical Systems in Transportation, Volume 13, Issue 2, June 2023., 2023
Due to the interaction of electric multiple units (EMUs), and the electric traction networks, low frequency oscillations (LFOs) appear that leads to traction blockade and overall stability related issues. For suppressing these LFOs, coronavirus herd immunity optimiser (CHIO), a recently developed meta‐heuristic based on the herd immunity concept in ...
Prasenjit Dey, Phumin Kirawanich, Chaiyut Sumpavakup, Aniruddha Bhattacharya   +3 more
wiley   +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, Volker Pickert, Mohammed A. Alharbi, Handong Li, Haris Patsios, Natarajan Prabaharan   +5 more
wiley   +1 more source

Failure Mode Analysis and Maintenance of Railway Overhead Line Rigid Stainless Steel Droppers and Multi‐Strand Copper Jumpers

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, Jian-Ping Li, George Chaplin, Andrew Gardiner, Fun-Yim Hu, I Safak Bayram   +5 more
wiley   +1 more source