Results 51 to 60 of about 891 (180)

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

open access: yesIET 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   +5 more
wiley   +1 more source

High-speed Maglev Digitization and Intelligentization Top-level Design

open access: yesChengshi guidao jiaotong yanjiu
Objective Digitization and intelligence (D&I) is essential for rail transit high-quality development. Currently, there is a lack of top-level design for high-speed maglev D&I, necessitating research to meet the requirements for the high-quality ...
MENG Chuanshu
doaj   +1 more source

Design of a Maglev Vibration Test Platform for the Research of Maglev Vehicle-girder Coupled Vibration Problem

open access: yesMATEC Web of Conferences, 2017
The maglev vehicle-girder coupled vibration problem has been encountered in many maglev test or commercial lines, which significantly degrade the performance of the maglev train.
Zhou Danfeng   +3 more
doaj   +1 more source

A Maglev System: Modeling and Controller Design [PDF]

open access: yes2005 International Conference on Industrial Electronics and Control Applications, 2006
In this paper, the nonlinear mathematical model with five DOFs (degrees-of-freedom) of a magnetic levitation system is developed and analyzed. Then a second order sliding mode controller is proposed to regulate the levitation to a desired position, stabilize the other 4 DOFs in the nonlinear system and compensate the unknown increments on the load ...
Álvarez-Sánchez, E.   +2 more
openaire   +1 more source

Bibliometric Analysis of Transport Infrastructure Hypernetwork: Review and Prospects

open access: yesJournal of Advanced Transportation, Volume 2026, Issue 1, 2026.
The transport infrastructure is transitioning into a multilayer, multifunctional hypernetwork form, posing challenges to traditional single‐mode planning methods in analyzing cross‐system risk transmission mechanisms and achieving spatiotemporal resource optimization. This leads to suboptimal system synergy and resilience.
Zhiguo Shao   +4 more
wiley   +1 more source

Research on axle load transfer of low-medium speed maglev tractor

open access: yes机车电传动, 2022
In order to study the axle load transfer of low-medium speed maglev tractor, the theoretical calculation formula of axle load transfer of maglev tractor was derived, and the axle load transfer results of maglev tractor under quasi-static condition were ...
LUO Jianli
doaj  

Invisible transportation infrastructure technology to mitigate energy and environment

open access: yesEnergy, Sustainability and Society, 2017
Background Traditional transportation infrastructure built by heat trapping products and the transportation vehiles run by fossil fuel, both causing deadly climate change. Thus, a new technology of invisible Flying Transportation system has been proposed
Md. Faruque Hossain
doaj   +1 more source

Conservation Laws and Dynamics of Solitons to the Multicomponent Fractional Gross–Pitaevskii System: Application in the Bose–Einstein Condensation

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In this work, we study the β‐fractional multicomponent Gross–Pitaevskii (G–P) system, which plays an important role in modeling Bose–Einstein condensates (BECs) and propagation in nonlinear waves. In Bose–Einstein condensation, the G–P equation is of great importance as it describes the condensate wave function’s behavior.
Naila Nasreen   +5 more
wiley   +1 more source

Building Weight Measurement by Human Shaker

open access: yesStructural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
The weight of a building is a fundamental parameter that plays a critical role in structural hazard assessment, finite element model updating, foundation settlement prediction, and other related fields. At present, two primary approaches are commonly used to estimate building weight: calculation based on design drawings and estimation from the total ...
Yang Li   +5 more
wiley   +1 more source

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

open access: yesGlobal 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   +5 more
wiley   +1 more source

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