Results 21 to 30 of about 183,779 (306)

The Impact of an Overlaid Ripple Current on Battery Aging: The Development of the SiCWell Dataset

open access: yesBatteries, 2022
Fast-switching semiconductors induce ripple currents on the high-voltage DC bus in the electric vehicle (EV). This paper describes the methods used in the project SiCWell and a new approach to investigate the influence of these overlaid ripples on the ...
Erik Goldammer   +7 more
doaj   +1 more source

Classifications of high resolution multitemporal remote sensing data for land use/cover mapping [PDF]

open access: yes, 2014
Analysis of the peak-to-peak output current ripple amplitude for multiphase and multilevel inverters is presented in this PhD thesis. The current ripple is calculated on the basis of the alternating voltage component, and peak-to-peak value is defined by
Μιχαηλίδου, Αίγλη   +1 more
core   +1 more source

Torque Ripple Minimization Control Strategy in Synchronous Reluctance Machines

open access: yesIEEE Open Journal of Industry Applications, 2022
Torque smoothness is an essential requirement for high-performance motor drive applications. Synchronous reluctance machines (SyRM) have high torque ripple due to non-linear magnetic circuit and saturation.
Anant K Singh   +3 more
doaj   +1 more source

Effect of toroidal field ripple on plasma rotation in JET [PDF]

open access: yes, 2008
Dedicated experiments on TF ripple effects on the performance of tokamak plasmas have been carried out at JET. The TF ripple was found to have a profound effect on the plasma rotation.
Andrew, Y.   +17 more
core   +2 more sources

Frequency-Controlled Current-Fed Resonant Converter with No Input Ripple Current

open access: yesEnergies, 2018
This paper studies a frequency-controlled current-fed resonant circuit. The adopted direct current (DC)-to-DC converter contains two boost circuits and a resonant circuit on the primary side. First, two boost circuits are connected in parallel to achieve
Bor-Ren Lin, Guan-Hong Lin
doaj   +1 more source

PERMANENT MAGNET SYNCHRONOUS MOTOR TORQUE RIPPLE REDUCTION USING PREDICTIVE TORQUE CONTROL

open access: yesJournal of Engineering and Sustainable Development, 2023
The control of (PMSM) is the subject of this study and the torque ripple reduction in (PMSM) is the main goal of this work. Torque and flux are controlled using a predictive model and Vector Control.
Saif T. Bahar, Riyadh Ghanem Omar
doaj   +1 more source

Output Current Ripple and Efficiency Optimal Control Method for Multi-Phase Interleaved LLC Resonant Converter

open access: yesFrontiers in Energy Research, 2022
The interleaving technique is required for LLC resonant converters to achieve high power levels, handle higher input/output currents, and reduce output current ripple.
Weikang Wang   +5 more
doaj   +1 more source

Improving the torque generation in self-sensing BLDC drives by shaping the current waveform [PDF]

open access: yes, 2016
Brushless DC drives are widely used in different fields of application because of their high efficiency and power density. Torque ripple can be considered one of the drawbacks of these drives.
Darba, Araz   +2 more
core   +1 more source

SEDIMENT TRANSPORT AND RIPPLES DUB TO WAVES AND CURRENTS

open access: yesCoastal Engineering Proceedings, 1978
Water velocities and shear stresses have been determined for a laminar boundary layer of a progressive wave travelling over a regular series of ripples. The Lavrentiev variational method was used to transform conformally the water area with ripples into a strip with flat bottom, while the Lin approach permitted solution of the boundary layer equation ...
Zbigniew Pruszak, Ryszard B. Zeidler
openaire   +2 more sources

Ripple Vector Cancellation Modulation Strategy for Single-Phase Quasi-Z-Source Inverter

open access: yesEnergies, 2019
The double-frequency (2ω) power flows through the DC side of the single-phase quasi-Z-source inverter (QZSI) leads to the 2ω voltage ripple of capacitors and 2ω current ripple of inductors.
Yufeng Tang   +3 more
doaj   +1 more source

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