Results 121 to 130 of about 211 (157)
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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.
Yongzhen Zhang   +2 more
exaly   +2 more sources

Comparison of optical and electrical measurements of the pantograph-catenary contact force

SPIE Proceedings, 2010
In railway engineering the monitoring of contact force between pantograph and catenary gives information about the interaction between the two systems and it is useful to check the status of the overhead line. Indeed the failure of the catenary is one of the main causes of out of order problems.
BOCCIOLONE, MARCO FRANCESCO   +3 more
openaire   +2 more sources

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

open access: yesMechanism 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 ...
Yang Song   +2 more
exaly   +2 more sources

Study on Characteristics Location of Pantograph–Catenary Contact Force Signal Based on Wavelet Transform

IEEE Transactions on Instrumentation and Measurement, 2019
With rising of the running speed of the train, the variation of pantograph–catenary contact force (PCCF) signal increases and the current collection quality between pantograph and catenary becomes worse. In order to explore the ways to optimize the PCCF signal, localization analysis of the value and the change of PCCF signal at the dropper-point are ...
Wenzheng Liu
exaly   +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   +3 more
openaire   +1 more source

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

open access: yesElectronics (Switzerland), 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   +2 more
exaly   +2 more sources

A robust control of contact force of pantograph-catenary for the high-speed train

2013 European Control Conference (ECC), 2013
In this paper, a simplified model to three degree of freedom (3-DOF) of the pantograph-catenary (PAC) system is represented. A robust control of contact force between the pantograph and the catenary for the high-speed trains using the fuzzy sliding mode controller and the additional compensator is presented.
Nassim Mokrani, Ahmed Rachid
openaire   +1 more source

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   +2 more
exaly   +4 more sources

Active nonlinear partial-state feedback control of contacting force for a pantograph–catenary system

ISA Transactions, 2019
In this paper, a nonlinear partial-state feedback control is designed for a 3-DOF pantograph-catenary system by using backstepping approach, such that the contacting force of the closed-loop system is capable of tracking its reference profile. In the control design, the pantograph-catenary model is transformed into a triangular form, facilitating the ...
Bing, Zhu   +4 more
openaire   +2 more sources

Non-contact detection method for pantograph-catenary contact force based on image processing

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
This paper introduces a non-contact method for detecting contact force between pantograph and catenary (PAC), based on image processing and Kalman filter. A non-contact method for detecting contact force of PAC, which only utilizes the vertical displacement of the collector head, is proposed.
Chen Hong-Ming   +2 more
exaly   +2 more sources

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