Results 61 to 70 of about 1,819 (228)

Fast evaluation on the fatigue level of copper contact wire based on laser induced breakdown spectroscopy and supervised machine learning for high speed railway

High Voltage, Volume 9, Issue 6, Page 1302-1310, December 2024.
Abstract High‐strength copper contact wire is of great significance to the electrified railway power supply system, which constantly provides electric power to the trains during operation. However, contact wire is subject to pressure, vibration, and natural forces such as wind, rain, ice, etc.
Wenfu Wei, Langyu Xia, Zefeng Yang, Huan Zhang, Like Pan, Jian Wu, Guangning Wu   +6 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

Research on online inspection of pantograph and catenary based on deep learning

机车电传动, 2022
The pantograph-catenary system is a key part of power supply for electric locomotive, and its operating status determines the current receiving quality of electric locomotive, as well as safety and efficiency of trains.
ZHOU Zhaoan, LI Shuzhi
doaj  

Application of GWO-SVM Algorithm in Arc Detection of Pantograph

IEEE Access, 2020
High-speed train will produce pantograph arc during the driving process, which is harmful to pantograph-catenary system. In order to reduce pantograph-catenary system damage, a method based on Gray Wolf algorithm to optimize the binary Support Vector ...
Bin Li, Chenyu Luo, Zhiyong Wang
doaj   +1 more source

Online Intelligent Perception of Pantograph and Catenary System Status Based on Parameter Adaptation

Applied Sciences, 2021
Online autonomous perception of pantograph catenary system status is of great significance for railway autonomous operation and maintenance (RIOM). Image sensors combined with an image processing algorithm can realize the automatic acquisition of the ...
Yuan Shen, Xiao Pan, Luonan Chang
doaj   +1 more source

A literature review on the applications of artificial intelligence to European rail transport safety

IET Intelligent Transport Systems, Volume 18, Issue 12, Page 2291-2324, December 2024.
In accordance with Directive (EU) 2016/797 relating to the inoperability of the European railway system, around a hundred articles (122) which deal with applications of artificial intelligence and in particular machine learning, neural networks, ontologies and knowledge graphs are studied and classified by types of railway subsystems.
Habib Hadj‐Mabrouk
wiley   +1 more source

Pantograph-Catenary Relation of Urban Rail Transit Lines under Catenary Iced Condition

Chengshi guidao jiaotong yanjiu
［Objective］ Under the condition of ice forming on catenary surface (hereinafter referred to as ′iced condition′), the normal current collection of train pantograph is disrupted.
ZHAO Haibo, ZHOU Jiaming, ZHANG Shuai
doaj   +1 more source

Research of simulation and experiment on arc characteristics of gas mechanical switch

High Voltage, Volume 9, Issue 3, Page 626-635, June 2024.
Abstract An arc is the high‐temperature discharge plasma produced in the opening process of mechanical switches, which directly affects the breaking capability of a hybrid DC circuit breaker. According to the physical mechanism of an electric arc, the construction of an arc model for simulation analysis is an important technical means in the electrical
Cheng Jiang, Lu Qu, Zhangqing Yu, Zhizheng Gan, Xin yan, Rong Zeng, Yulong Huang, Shaofu Li   +7 more
wiley   +1 more source

Analysis and suppression of operational overvoltage and inrush current for high‐speed trains by automatic phase‐switching technique

High Voltage, Volume 9, Issue 3, Page 733-748, June 2024.
Abstract When a high‐speed train approaches the insulated phase‐splitting section embedded between neighbouring power supply arms, the vacuum circuit breaker (VCB) installed on trains must be disconnected to maintain the traction power supply system as a no‐load condition for completing phase‐switching action, as the train passes through the phase ...
Ye Cao, Song Xiao, Zhizong Ye, Guangning Wu, Yujun Guo, Guoqiang Gao, Chuanming Sun, Jiancheng Liu, Zheng Chen, Hao Hou, Zijing Wang, Puyang Liu, Yuhui Zhang, Jie Yu   +13 more
wiley   +1 more source

Defect Diagnosis of Rigid Catenary System Based on Pantograph Vibration Performance

Actuators
The condition of a catenary is significant to ensure a high current collection quality. Owing to the dynamic interaction between the pantograph and the catenary system, the vibration of the pantograph can be used to analyze the condition of the catenary ...
Mengying Tan, Haishangyang Li, Lei Nie
doaj   +1 more source