Results 91 to 100 of about 83,025 (297)

Frequency modulation of a series resonant dual active bridge to minimize the circulating reactive currents in the high frequency link

, 2016
A frequency modulation scheme is proposed for a Capacitor-Inductor-Inductor-Capacitor (CLLC) Resonant Dual Active Bridge (RDAB) that relies on dynamic retuning of the resonant capacitors to the switching frequency as it is modulated.
Vilathgamuwa, D. Mahinda, Malan, Wynand L., D. Mahinda Vilathgamuwa, Broadmeadow, Mark A.H., Mark A. H. Broadmeadow, Geoffrey R. Walker, Walker, Geoffrey R., Wynand L. Malan   +7 more
core   +1 more source

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

Advanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome, Lijie Cao, Christoph Somsen, Johannes Boes, René Hesse, Werner Theisen, Gunther Eggeler   +6 more
wiley   +1 more source

LVDC??? 3??? Dual Active Bridge ???????????? ?????? ????????? ?????? ?????? ??????

, 2017
??? ??????????????? ????????? ???????????? ?????? ????????? ?????? LVDC ??? 3??? Dual Active Bridge (DAB) ???????????? ????????? ???????????? ??? ?????? ????????? ????????? ????????? ??????????????? ??????. 3??? DAB ???????????? ?????? ????????? ?????? ??
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core  

Dynamic modeling of the Dual-Active Bridge topology for high-power applications

, 2008
In the present paper the staedy-state and thedynamic behavior of the Dual-Active Bridge topology havebeen studied. The small-signal model of the converter hasbeen derived and theoretical and experimental results arepresented.The Dual-Active Bridge is an ...
Demetriades, Georgios D., Georgios D. Demetriades, Hans-Peter Nee, Nee, Hans-Peter,   +3 more
core   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Discrete Inductor Free Phase Shifted Dual Active Bridge Converter for EV DC Fast Charging Application

This paper studies a compact dual active bridge (DAB) converter by adopting a latest high-frequency transformer (HFT). Traditional DAB converter requires the discrete inductor to perform the energy transfer operation, which increases the overall size ...
Subhani, N, Yao, W, Lu, J, Zhu, Y
core   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

New Architectures and Nonlinear Control Strategy of Dual Active Bridge Converter

, 2022
This dissertation contains 3 distinct research projects that focus on architectures and control strategies for dual active bridge converters and triple active bridge converters.
Smith, Zachary
core  

Active Power Sharing Control in Asymmetrical Bidirectional DC/DC Converter

IEEE Open Journal of Power Electronics
In many practical applications, such as electric vehicle charging and smart transformers, reverse power flow is significantly lower than forward power flow.
Lohith Kumar Pittala, Andrii Chub, Georgios I. Orfanoudakis, Alon Kuperman, Mattia Ricco, Riccardo Mandrioli   +5 more
doaj   +1 more source

Dynamic and static performance optimization of dual active bridge DC-DC converters

Journal of Modern Power Systems and Clean Energy, 2017
High efficiency and fast dynamic response are two main control objectives for dual active bridge (DAB) DC-DC converters. Traditional extended phase shift (EPS) control can significantly enhance the conversion efficiency of DAB DC-DC converters by ...
Nie HOU, Wensheng SONG, Yutong ZHU, Xiao SUN, Wei LI   +4 more
doaj   +1 more source