Results 1 to 10 of about 2,572,618 (229)

Discussion on "AC Drive Observability Analysis" [PDF]

open access: yesIEEE transactions on industrial electronics (1982. Print), 2015
In the paper by Vaclavek et al. (IEEE Trans. Ind. Electron., vol. 60, no. 8, pp. 3047-3059, Aug. 2013), the local observability of both induction machine and permanent-magnet synchronous machine (PMSM) under motion-sensorless operation is studied.
Duc, Gilles   +3 more
core   +5 more sources

Nonlinear dynamics, rectification, and phase locking for particles on symmetrical two-dimensional periodic substrates with dc and circular ac drives [PDF]

open access: green, 2003
We investigate the dynamical motion of particles on a two-dimensional symmetric periodic substrate in the presence of both a dc drive along a symmetry direction of the periodic substrate and an additional circular ac drive.
A. Barone   +6 more
core   +3 more sources

Mode-locking in driven vortex lattices with transverse ac-drive and random pinning [PDF]

open access: yes, 2001
We find mode-locking steps in simulated current-voltage characteristics of driven vortex lattices with {\it random} pinning when an applied ac-current is {\it perpendicular} to the dc-current.
A. A. Middleton   +52 more
core   +2 more sources

Vector Control Algorithm Based on Different Current Control Switching Techniques for Ac Motor Drives [PDF]

open access: diamondE3S Web of Conferences, 2020
A comparative analysis of vector control scheme based on different current control switching pulses (HC, SPWM, DPWM and SVPWM) for the speed response of motor drive is analysed in this paper.
Usama Muhammad, Kim Jaehong
doaj   +2 more sources

Dynamic Influence of Wheel Flat on Fatigue Life of the Traction Motor Bearing in Vibration Environment of a Locomotive

open access: yesEnergies, 2021
Wheel flat can cause a large impact between the wheel and rail and excites a forced vibration in the locomotive and track structure systems. The working conditions and fatigue life of the motor bearings are significantly affected by the intensified wheel–
Bingbin Guo   +4 more
doaj   +1 more source

Methods of synchronization of electric drives not mechanically connected [PDF]

open access: yesОмский научный вестник, 2021
The article provides a comparative analysis of the structures of synchronization of the motion of electric drives of medium and high power. A comparison of synchronization structures is made in terms of the impact on the final operation of the system
A. E. Bychkov   +2 more
doaj   +1 more source

Multiobjective Optimization and Weight Selection Method for Heavy Haul Trains Trajectory

open access: yesIEEE Access, 2022
Energy-saving, punctuality and smoothness are difficult to achieve in the operation of heavy haul train. This paper proposes a multi-objective method for speed curve optimization.
Wang Li, Senhao Jiang, Miaoxin Jin
doaj   +1 more source

Characteristic example of insulation coordination in power converters [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2021
Power electronics devices and modules that are most often used in power supply systems when compared to the passive components usually exhibit a very poor ability to withstand surge voltages.
Despotović Željko V.
doaj   +1 more source

Research on Air Supply Volume and Temperature Control of Subway Trains Based on Passenger Capacity

open access: yesAtmosphere, 2023
There is currently no way for subway air-conditioning systems to adjust to changes in passenger capacity in terms of air-supply volume and air-supply temperature.
Zhiyuan Liu   +6 more
doaj   +1 more source

Multi-Objective Aerodynamic Optimization of a High-Speed Train Head Shape Based on an Optimal Kriging Model [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
An optimal Kriging surrogate model based on a 5-fold cross-validation method and improved artificial fish swarm optimization is developed for improving the aerodynamic optimization efficiency of a high-speed train running in the open air.
Y. Yang, Z. He, Z. Shi, X. H. Xiong
doaj   +1 more source

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