Results 51 to 60 of about 4,520 (222)

Sliding‐Mode Control of Electromagnetic Suspension Systems Considering Disturbance Compensation

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This study proposes an integrated control strategy for magnetic levitation systems, combining a cascaded linear extended state observer with an improved sliding‐mode control. This method accurately estimates and compensates for disturbances, significantly enhancing suspension stability and rejection capability.
Hailin Hu, Qiang Luo, Tao Gao, Yan Huang, Rencai Wu   +4 more
wiley   +1 more source

Ensuring electromagnetic safety at high-speed maglev transport

Transportation systems and technology, 2017
High-speed ground maglev transport creates electromagnetic interference of wide frequency spectrum during the movement. Electromagnetic interference spreads both in the surrounding environment and within the transport itself. Mathematically, electromagnetic interference is a vector (and in some cases tensor) field, where the functions are magnetic and ...
openaire   +3 more sources

Dynamic Study on a Passive Damping Scheme for Permanent Magnet Electrodynamic Suspension Vehicle Utilizing Onboard Magnets End Effects

Actuators
The permanent magnet electrodynamic suspension system (PMEDS) has demonstrated significant advantages in high-speed and ultra-high-speed applications due to its simple structure, low cost, and stable levitation force.
Shanqiang Fu, Mingang Chi, Anqi Shu, Junzhi Liu, Shuqing Zhang, Hongfu Shi, Zigang Deng   +6 more
doaj   +1 more source

Indirect economic effects of a rail link along the afsluitdijk [PDF]

, 2002
New transport infrastructure has a myriad of short and long run effects. The effects on population and economic activity are most difficult to estimate. This paper introduces three different models to estimate the impacts of new infrastructure on labour ...
Oosterhaven, J.,, Romp, W.E.,
core   +2 more sources

A Nonstationary Geometry‐Based Model for Channel Characterisation in Vactrains Scenarios Using Leaky Coaxial Cables

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
In this paper, a 3D multi‐source GBSM model is proposed for the vacuum tube scenario using LCX. By equating the periodic slots to multiple magnetic dipole antennas, the electric field distribution of LCX is deduced, and the CIR expression is derived. Based on this, the multi‐link spatial‐temporal correlations, including the spatial CCF and temporal ACF,
Kai Wang, Jiahui Qiu, Jiachi Zhang, Liu Liu, Tao Zhou   +4 more
wiley   +1 more source

Field experimental tests and analyses of suspension frame vibration of low-medium speed maglev train

Journal of Low Frequency Noise, Vibration and Active Control, 2023
Pushed by social demands, China has continuously developed its low-medium speed maglev transportation systems in recent decades. However, with the increase of the running mileage of the train, high frequency vibration of suspension frame gradually ...
Fengyu Ou, Xiaokang Liao, Cai Yi, Zili Chen, Jianhui Lin   +4 more
doaj   +1 more source

Performance analysis of a linear synchronous motor with HTS bulk magnets [PDF]

, 2010
The study on high temperature superconducting (HTS) bulk magnets and their application has attracted much attention. This paper presents the performance analysis of a linear synchronous motor (LSM) with HTS bulk magnets for driving an HTS maglev vehicle ...
Guo, Y, Jin, J, Lu, H, Xu, W, Zhu, J
core   +1 more source

A Multi‐Objective Optimal Synchronous Modulation Strategy for Three‐Level Converter Through Switching Angle Regulation

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a novel power loss reduction PWM (PLRPWM) strategy for three‐level neutral point clamped inverters. The proposed strategy aims to achieve multi‐objective optimisation by balancing low output harmonics, reduced switching losses and a balanced neutral‐point potential. ABSTRACT Three‐level neutral point clamped (3L‐NPC) converters have
Chaoqun Xiang, Xinyu Fu, Xinan Zhang, Jingrun Du, Tianhao Qie, Huimin Wang   +5 more
wiley   +1 more source

Smart Solutions: A New Direct Current Electric Machine Design to Reduce Weight and Enhance Efficiency

Global Challenges, Volume 9, Issue 12, December 2025.
This article introduces a smart solution for the design of a brush DC motor with a winding‐free rotor (DCFR). The proposed model simplifies manufacturing, reduces material costs, and enhances efficiency. Designed for variable speed and solar power applications, the DCFR achieves 91.8% efficiency and a 21% weight reduction compared to conventional ...
Dmytro Ivliev, Iryna Bashynska, Volodymyr Kosenkov, Andrii Boiko, Liubov Niekrasova, Ivan Chepovskyi   +5 more
wiley   +1 more source

Influence of Velocity Feedback Time Delay on the Nonlinear Dynamic Characteristics of Maglev Trains Under Unsteady Aerodynamic Forces

International Journal of Mechanical System Dynamics, Volume 5, Issue 4, Page 707-720, December 2025.
ABSTRACT Time delays frequently arise in active control systems due to sensor sampling, signal transmission, and actuator response, making their effects on system dynamics non‐negligible. This paper investigates how velocity feedback time delay influences the nonlinear dynamic characteristics of a maglev train subjected to unsteady aerodynamic forces ...
Jia‐Xuan Li, Zhi‐Wei Liu, Xiang Liu
wiley   +1 more source