Pantograph ≈ PantographPantograph
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Pantograph–catenary electrical contact system of high-speed railways: recent progress, challenges, and outlooks Open
As the unique power entrance, the pantograph–catenary electrical contact system maintains the efficiency and reliability of power transmission for the high-speed train. Along with the fast development of high-speed railways all over the wo…
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Future of Electric Railways: Advanced Electrification Systems with Static Converters for ac Railways Open
Railways are a vital part of the world economy, transporting both goods and passengers. Freight trains transport large quantities of goods, whereas high-speed trains are the fastest land passenger systems. At present, the majority of rail …
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Asymptotic Stability of Nonlinear Discrete Fractional Pantograph Equations with Non-Local Initial Conditions Open
Pantograph, the technological successor of trolley poles, is an overhead current collector of electric bus, electric trains, and trams. In this work, we consider the discrete fractional pantograph equation of the form Δ∗β[k](t)=wt+β,k(t+β)…
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A new methodology to study the pantograph–catenary dynamics in curved railway tracks Open
The pantograph-catenary system is responsible to provide an uninterrupted energy supply to power electric traction railway vehicles. The analysis of the dynamic behaviour of the catenary and pantograph, as well as its interaction, has been…
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Design of Morlet Wavelet Neural Network for Solving a Class of Singular Pantograph Nonlinear Differential Models Open
The aim of this study is to design a layer structure of feed-forward artificial neural networks using the Morlet wavelet activation function for solving a class of pantograph differential Lane-Emden models. The Lane-Emden pantograph differ…
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Analytical numerical solutions of the fractional multi-pantograph system: Two attractive methods and comparisons Open
In this paper, we present numerical analytical solutions of a fractional multi-pantograph system by using two attractive methods with rapidly convergence, control of the convergence region and easily software accounts of the infinite serie…
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Genetic Optimization Method of Pantograph and Catenary Comprehensive Monitor Status Prediction Model Based on Adadelta Deep Neural Network Open
The status of the Pantograph and Catenary is the guarantee for the safe operation of the railway. However, the traditional Pantograph and Catenary status judgment efficiency is not satisfactory, and it is impossible to timely repair the ca…
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Sliding Mode Control with PD Sliding Surface for High-Speed Railway Pantograph-Catenary Contact Force under Strong Stochastic Wind Field Open
As is well known, the external disturbance (especially the stochastic wind load) has nonnegligible effect on the operation of pantograph-catenary system, which may cause the strong fluctuation in contact force as well as the increased occu…
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Characteristics of pantograph‐catenary arc under low air pressure and strong airflow Open
Pantograph‐catenary arc fault is the primary factor threatening the stability of the power transmission for high‐speed railway. The motion characteristics of the pantograph‐catenary arc under low air pressure and strong airflow is signific…
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Evolution of the electrical contact of dynamic pantograph–catenary system Open
A good contact between the pantograph and catenary is critically important for the working reliability of electric trains, while the basic understanding on the electrical contact evolution during the pantograph–catenary system working is s…
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Railway pantograph-catenary interaction performance in an overlap section: Modelling, validation and analysis Open
The overlap section is a railway catenary arrangement where the pantograph transfers from one section to another. In the overlap section, the unsynchronised vibration of two contact wires, contact wire height variation, and elasticity unev…
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The Problem of High-Speed Railway Noise Prediction and Reduction Open
In view of the rapid high-speed railway transport development in the world, the question of ecological safety of the people living in the areas adjacent to transport infrastructure networks, including physical factors compliance, becomes c…
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Stability analysis of initial value problem of pantograph-type implicit fractional differential equations with impulsive conditions Open
In this paper, we study an initial value problem for a class of impulsive implicit-type fractional differential equations (FDEs) with proportional delay terms. Schaefer’s fixed point theorem and Banach’s contraction principle are the key t…
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Characteristics of the Sliding Electric Contact of Pantograph/Contact Wire Systems in Electric Railways Open
The sliding electric contact of pantograph/contact wire systems plays a significant part in the current collection stability and operation life of pantograph/contact wire systems. This paper addresses the evolutionary process of sliding el…
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Entropy-Based Local Irregularity Detection for High-Speed Railway Catenaries With Frequent Inspections Open
The condition-based maintenance of high-speed railway catenary is an important task to ensure the continuous availability of train power supply. To improve the condition monitoring of catenary, this paper presents a novel scheme to detect …
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Identification of short-wavelength contact wire irregularities in electrified railway pantograph–catenary system Open
The effect of two common types of short-wavelength irregularities (local imperfections and periodic short-wavelength irregularities) of the railway catenary on the pantograph–catenary interaction performance are studied and their potential…
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Effect of cavity flow control on high-speed train pantograph and roof aerodynamic noise Open
The pantograph and its recess on the train roof are major aerodynamic noise sources on high-speed trains. Reducing this noise is particularly important because conventional noise barriers usually do not shield the pantograph. However, less…
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Existence and stability for fractional order pantograph equations with nonlocal conditions Open
In this article we study the a coupled system of fractional pantograph differential equations (FPDEs). Using degree theory, we state necessary conditions for the existence of solutions to a coupled system of fractional partial differential…
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Pantograph-to-OHL Arc: Conducted Effects in DC Railway Supply System Open
The electrical arc occurring in the sliding contact between the supply contact line and the current collector (pantograph) of an electrical locomotive is a fast transient phenomenon able to degrade progressively the line-to-pantograph cont…
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Outstanding Technical Features of Traction System in N700S Shinkansen New Generation Standardized High Speed Train Open
This paper overviews a traction system for Tokaido Shinkansen trains and presents a novel silicon carbide (SiC)-applied traction system of the new generation Shinkansen train, "N700S", which began commercial service in the summer of 2020. …
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Poynting effects in pantographic metamaterial captured via multiscale DVC Open
Metamaterials are often studied for their peculiar mechanical properties. However, few 4D studies were conducted on 3D printed pantographs. This study aims at analyzing an in situ torsion test in a lab tomograph. The acquired scans were us…
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Analysis of the evolvement of contact wire wear irregularity in railway catenary based on historical data Open
This paper studies the evolvement of the wear irregularity of contact wire using wire thickness data measured yearly from a section of railway catenary. The power spectral density and time–frequency representation based on the wavelet tran…
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Application of Wireless Power Transfer to Railway Parking Functionality: Preliminary Design Considerations with Series-Series and LCC Topologies Open
There is a wide literature concerning the application of inductive power transfer (IPT) to light railway systems. In this work, proposed application is innovative with respect to existing literature: static current collection on convention…
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Optimal Type-3 Fuzzy System for Solving Singular Multi-Pantograph Equations Open
In this study a new machine learning technique is presented to solve singular multi-pantograph differential equations (SMDEs). A new optimized type-3 fuzzy logic system (T3-FLS) by unscented Kalman filter (UKF) is proposed for solution est…
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Fuzzy integral-based multi-sensor fusion for arc detection in the pantograph-catenary system Open
The pantograph-catenary subsystem is a fundamental component of a railway train since it provides the traction electrical power. A bad operating condition or, even worse, a failure can disrupt the railway traffic creating economic damages …
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Numerical simulation and optimization of aerodynamic uplift force of a high-speed pantograph Open
Aiming at the problem that aerodynamic uplift forces of the pantograph running in the knuckle-downstream and knuckle-upstream conditions are inconsistent, and their magnitudes do not satisfy the corresponding standard, the aerodynamic upli…
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A heuristic wear model for the contact strip and contact wire in pantograph – Catenary interaction for railway operations under 15 kV 16.67 Hz AC systems Open
The sliding contact between the pantograph and catenary allows the correct operation of electric trains. However, this contact induces wear on both the components involved in the process, namely the contact strip on the pantograph and the …
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Analytical model of the pantograph–catenary dynamic interaction and comparison with numerical simulations Open
This is an Accepted Manuscript of an article published by Taylor & Francis in Vehicle System Dynamics on 02 Jan 2022, available online: \n https://www.tandfonline.com/doi/full/10.1080/00423114.2020.1802493
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Kinematical and dynamical modeling of a multipurpose upper limbs rehabilitation robot Open
Knowing accurate model of a system is always beneficial to design a robust and safe control while allowing reduction of sensors-related cost as the system outputs are predictable using the model. In this context, this paper addresses the k…
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A detailed investigation of uplift and damping of a railway catenary span in traffic using a vision-based line-tracking system Open
For electrified railways, the catenary dynamic behavior is critical to ensure a robust and steady current collection quality for electric trains. The current collection is achieved as the catenary directly interacts with the pantograph, in…