Results 21 to 30 of about 14,421,942 (313)

Triple-Phase-Shift Modulation Strategy for Diode-Clamped Full-Bridge Three-Level Isolated DC/DC Converter

open access: yesIEEE Access, 2020
A triple-phase-shift (TPS) modulation strategy with reduced transformer’s voltage stress is proposed in this paper for the diode-clamped full-bridge (FB) three-level isolated DC/DC converter. The proposed strategy can keep the transformer’s
Dong Liu   +3 more
doaj   +1 more source

Autonomous Wireless Power Transfer System with Constant Output Voltage in a Wide Load Range

open access: yesEnergies, 2023
In this paper, an autonomous wireless power transfer (WPT) system with constant voltage output in a wide load range is presented. Here, combining self-oscillating control and phase-shift control, a new implementation of the autonomous WPT system is ...
Yanwei Jiang   +4 more
doaj   +1 more source

Auto-adaptive fault tolerant control of a seven-phase drive [PDF]

open access: yes, 2010
This paper proposes an auto-adaptive current control that makes possible to reduce torque ripples of multi-phase machines in open-circuited phase conditions.
KESTELYN, Xavier   +5 more
core   +1 more source

Phase-shift beamforming

open access: yes, 2022
Based on the third author's PhD thesis [1] this report investigates further aspects of two dimensional beamforming techniques using a linear array of transducers.
N Bhattacharjee (13503358)   +2 more
core   +1 more source

Design of a Double-Half-Bridge Rectifier With Single-Stage and Power Decoupling

open access: yesIEEE Access, 2023
Several power decoupling techniques have been studied in the specialized literature to reduce or eliminate the ripple at 120 Hz intrinsic to the nature of single-phase AC-DC converters.
Giovano Mayer, Alceu Andre Badin
doaj   +1 more source

Minimum Current Optimization of DBSRC Considering the Dead-Time Effect

open access: yesEnergies, 2022
In a dual-bridge series resonant converter (DBSRC) working at a high switching frequency, the dead-time effect is a serious issue. When the minimum current trajectory (MCT) method is applied, the inductor current cannot be minimized due to the dead-time ...
Jiawen Yang, Yu Zhang, Xinmi Wu
doaj   +1 more source

Direct torque control for dual three-phase induction motor drives [PDF]

open access: yes, 2004
A direct torque control (DTC) strategy for dual three-phase induction motor drives is discussed in this paper. The induction machine has two sets of stator three-phase windings spatially shifted by 30 electrical degrees.
Profumo, Francesco   +10 more
core   +1 more source

Direct power control of dual-active-bridge dc–dc converters based on unified phase shift control

open access: yesThe Journal of Engineering, 2019
Dual-active-bridge (DAB) dc–dc converters are the important part of the transformerless electric traction drive system in railway application. Also the dynamic characteristic of DAB converters in the electric traction drive system is very significant ...
Feng An, Wensheng Song, Kexin Yang
doaj   +1 more source

Phase shift bandwidth and scan range in microstrip arrays by the element frequency tuning

open access: yes, 2006
In this paper, the far-field phase shift properties of microstrip patch antennas are investigated. It is shown that, similar to reflectarrays, the resonant nature of microstrip patches can be used to change the phase of the radiated field.
Sharma, SK   +3 more
core   +1 more source

Acoustic impedance tuning with active disturbance rejection control

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
An anechoic end is desired to be implemented on an acoustic test rig. The acoustic impedance can be tuned with active control, such as phase shift control. A precise mathematical description of a system is necessary for phase shift control.
Xu Cheng   +3 more
doaj   +1 more source

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