Results 21 to 30 of about 298 (139)

FCDM‐Net: A Feature‐Calibrated Dynamic Masking Network Based on Pre‐Trained Models for Few‐Shot Catenary Component Anomaly Detection

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This paper proposes a novel feature‐calibrated dynamic masking network (FCDM‐Net) for the unified few‐shot anomaly detection of catenary components. First, a lightweight residual adapter is integrated with a frozen visual encoder. Through a few‐shot fine‐tuning strategy, the general visual features are mapped to the specific manifold space of catenary ...
Zefu Wei, Zhigang Liu, Guangwu Chen, Xin Zhou, Fuxia Wang, Peng Li   +5 more
wiley   +1 more source

Active Power Filter‐Based Low‐Frequency Ripple Power Suppression of the DC‐Link in Railway Traction Systems

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This article presents an active power filtering control method to suppress ripple power in the DC‐link of railway traction systems, including both the inherent second‐order ripple of single‐phase rectifiers and additional frequency ripples introduced by the pantograph–catenary arc.
Wei Wang, Wei Jiang, Hao Yue, Xiangmin He, Xinke Wang, Wensheng Song   +5 more
wiley   +1 more source

Simulation and Generalized Dynamic Modeling of Metro Pantograph-Catenary System Based on Least Squares Support Vector Machine

机车电传动, 2017
A Generalized dynamic modeling method was proposed for pantograph-catenary system based on least squares support machine (LSSVM), and the pantograph-catenary model identification and simulation were carried out.
Huang Yuping, JIANG Wei, TONG Jingquan, SHI Luxing   +3 more
doaj  

A Fast Simulation Model of Pantograph–Stitched-Catenary Interaction in Long-Distance Travel

Applied Sciences
The increasing operation speed of high-speed trains allows the pantograph to continuously interact with the catenary over a long distance in a short time, and many new methods have been developed to efficiently calculate its dynamics.
Like Pan, Yan Xu, Zhendong Liu, Chonhui Xiao, Jilin Lei   +4 more
doaj   +1 more source

The Effect of High-Frequency Parametric Excitation on a Stochastically Driven Pantograph-Catenary System

Shock and Vibration, 2014
In high-speed electric trains, a pantograph is mounted on the roof of the train to collect power through contact with an overhead catenary wire. The effect of fast harmonic and parametric excitation on a stochastically driven pantograph-catenary system ...
R. H. Huan, W. Q. Zhu, F. Ma, Z. H. Liu
doaj   +1 more source

Classifying Power Quality Issues in Railway Electrification Systems Using a Nonsubsampled Contourlet Transform Approach

Engineering Reports, Volume 7, Issue 8, August 2025.
Railway electrification systems indeed have unique challenges due to variable power demand and dynamic train operations. Power quality (PQ) monitoring for high‐speed trains (HSTs) is essential to guarantee the effectual and unfailing operation of the ESs.
Pampa Sinha, Kaushik Paul, I. M. Elzein, Mohamed Metwally Mahmoud, Ali M. El‐Rifaie, Wulfran Fendzi Mbasso, Ahmed M. Ewais   +6 more
wiley   +1 more source

Undervoltage compensation of pantograph catenary arc

AIP Advances, 2020
This paper describes the design of a new type of pantograph-catenary arc simulation test device and simulation of the arc generated by the pantograph during operation under laboratory conditions.
Dan Dan Zou, Meng Yao Wang, Ping Zi Hu, Chunmei Cui   +3 more
doaj   +1 more source

Fixed‐Time Synergetic Control of Multi‐Interior Permanent Magnet Synchronous Motor Traction System With Dynamic Adhesion

IET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.
To address the issues of unbalanced traction and unstable operation of the train caused by uneven wear, this paper presents a fixed‐time synergetic control‐based solution focusing on the electrical speed synchronization control of multi‐interior permanent magnet synchronous motor (IPMSM) traction system.
Deqing Huang, Qiyuan Zhao, Ruiqi Li, Yupei Jian   +3 more
wiley   +1 more source

Effect of Structural Parameters on Pantograph–Catenary Interaction Performance in High-Speed Railways

Infrastructures
With the rapid development of high-speed railways, the dynamic performance of the pantograph–catenary system plays a crucial role in ensuring the safe and stable operation of trains.
Tong Xing, Xufan Wang, Like Pan, Yang Song, Dehai Zhang, Qun Yu   +5 more
doaj   +1 more source

Structural Health Monitoring Method of Pantograph–Catenary System Based on Strain Response Inversion

Frontiers in Physics, 2021
Pantograph-catenary system provides electric energy for the subway lines; its health status is essential to the serviceability of the vehicle. In this study, a real-time structural health monitoring method based on strain response inversion is proposed ...
Sheng Liu, Yibo Wei, Yongxin Yin, Tangzheng Feng, Jinbao Lin   +4 more
doaj   +1 more source