Results 121 to 130 of about 1,683 (171)

Detection of Contact Wire Irregularities Using a Quadratic Time–Frequency Representation of the Pantograph–Catenary Contact Force

IEEE Transactions on Instrumentation and Measurement, 2016
As for the rapid expansion of high-speed electrified railway industry, the current collection quality of electric locomotives becomes one of the crucial technical issues for the stable operation of trains. The key measurement index that can characterize the quality of current collection is the contact force between the catenary and pantograph on the ...
Hongrui Wang, Zhigang Liu, Yang Song, Xiaobing Lu, Zhiwei Han, Jing Zhang, Ying Wang   +6 more
openaire   +2 more sources

Ensemble EMD-Based Automatic Extraction of the Catenary Structure Wavelength From the Pantograph–Catenary Contact Force

IEEE Transactions on Instrumentation and Measurement, 2016
This paper explores the use of pantograph–catenary contact force (PCCF) for monitoring of the current collection quality and detection of anomalies in the interaction between pantograph and catenary. The concept of catenary structure wavelength (CSW) is proposed as the dominant component of PCCF.
Zhigang Liu, Hongrui Wang, Rolf Dollevoet, Yang Song, Alfredo Nunez, Jing Zhang   +5 more
openaire   +4 more sources

Robust Adaptive Contact Force Control of Pantograph–Catenary System: An Accelerated Output Feedback Approach

IEEE Transactions on Industrial Electronics, 2021
The pantograph–catenary system plays the crucial role in high-speed electric trains for electrical power collection, where continuity and smoothness of the contact between the pantograph and the catenary is one of the key factors ensuring high-quality power collection essential for safe and reliable train operation.
Yongduan Song, Luyuan Li
openaire   +2 more sources

The Effects of Spatially Distributed Damping on the Contact Force in Railway Pantograph-Catenary Interactions

IEEE Transactions on Instrumentation and Measurement, 2021
According to field measurements, the damping ratio of a railway catenary varies along the span length and shows an inherent uncertainty. In numerical simulations, it is common to assume a constant damping ratio. Herein, a methodology is proposed to include the variable damping ratio of a catenary in numerical simulations of pantograph-catenary ...
Yang Song, Tengjiao Jiang, Anders Ronnquist, Petter Navik, Gunnstein Froseth   +4 more
openaire   +2 more sources

Design and testing of fibre Bragg grating force transducers for the measurement of pantograph–catenary contact force

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2018
This paper deals with the design, development and testing of a novel force transducer based on fibre-optic technology, for the measurement of contact force between a pantograph and an overhead line. Due to the particular application, in which part of the measurement chain is at high voltage and part is at ground potential, fibre-optic technology has ...
Bocciolone, Marco, Bucca, Giuseppe, Collina, Andrea, Comolli, Lorenzo   +3 more
openaire   +3 more sources

A temperature-compensated fiber Bragg grating sensor system based on digital filtering for monitoring the pantograph–catenary contact force

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2018
Optical sensors based on fiber Bragg gratings have become an important type of sensing element for strain measurements. In this study, fiber Bragg grating strain sensors and corresponding reference temperature sensors were integrated into a pantograph strip. The results of an online test indicated that the temperature of the pantograph strip impacting
Mengying Tan, Ning Zhou, Yao Cheng, Jiangwen Wang, Weihua Zhang, Dong Zou   +5 more
openaire   +2 more sources

Robust Control of Contact Force for Pantograph-Catenary System

2018 57th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE), 2018
To improve the quality of the current collection transmitted to a high-speed train, based on a pantograph model with a three-degree of freedom, two methods are presented to suppress the vibration of the pantograph-catenary system. One is $H_{\infty}$ robust control, and the other is improved equivalent-input-disturbance (IEID)-based control. For the
Pan Yu, Kang-Zhi Liu, Makoto Yokoyama, Min Wu   +3 more
openaire   +2 more sources

Evolution processes of the tribological properties in pantograph/catenary system affected by dynamic contact force during current-carrying sliding

Wear, 2021
Abstract DSA200 pantograph and CH160 catenary are being in service in China on SS7 electric locomotive. Dynamic study of the pantograph/catenary system found that the contact force between pantograph and contact wire vibrated periodically with the running of trains.
Yanyan Zhang, Conghui Li, Xianjuan Pang, Chenfei Song, Feng Ni, Yongzhen Zhang   +5 more
openaire   +2 more sources

An extremum seeking based control strategy for pantograph-catenary contact force of high-speed trains

2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015
The high-speed train is typically powered by the catenary wire suspended from poles or towers along the rail. An important issue of the high-speed train's power supply is how to set the precise contact force between the pantograph and catenary wires in real time.
Haikuan Jiang, Jianfeng Liu, Heng Li, Zhiwu Huang   +3 more
openaire   +2 more sources

A novel design of a compact S-shaped balance with FBG sensors for the pantograph-catenary contact force measurement

SPIE Proceedings, 2012
The measurement of the contact force between pantograph and catenary in railway engineering has been carried out in the past with conventional electrical load cells. This study evaluates the use of fiber Bragg gratings (FBG) sensors, so that electrical insulation of the load cells, placed on high voltage parts, is obtained by means of the fiber optic
BOCCIOLONE, MARCO FRANCESCO, COMOLLI, LORENZO, CROSIO, PIETRO FRANCESCO   +2 more
openaire   +3 more sources