Results 51 to 60 of about 319,280 (338)
AC-DC Cuk Converter: A State-of-the-Art topological review
Energy Conversion and Management: XAC-DC converters, which transform alternating current (AC) into controlled direct current (DC), are key instruments for systems requiring stable and efficient power conversion.
Istiak Ahmed +6 more
doaj +1 more source
IEEE Access, 2021 Three-port intelligent conversion systems, interfacing photovoltaic (PV) arrays and electric vehicles (EVs), with an electrical grid, are a promising flexible infrastructure for future smart grids.
Zhigang Zhang, Bin Liu, Shaojian Song
doaj +1 more source
Power converters and controllers for UPS applications with backup PEM fuel cell [PDF]
, 2008 This paper studies the practical cost-effective DC/DC converter, DC/AC inverter and AC/DC rectifier for an uninterruptible power supply (UPS) system with backup proton exchange membrane fuel cell (PEMFC).
Guo, Y, Wang, H, Zhan, Y, Zhu, J
core +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
Unified Iterative Algorithm for Power Flow of AC/DC System with Multi-Type DC Links
CSEE Journal of Power and Energy SystemsAs an emerging trend in power grid development, the AC/DC hybrid power grid presents the characteristics of multi-type DC links and large-scale AC/DC interconnection.
Zhiqiang Song +5 more
doaj +1 more source
Controllable AC/DC Integration for Power Quality Improvement in Microgrids
Advances in Electrical and Computer Engineering, 2019 Renewable energy sources can be connected to utility grids by using AC and DC integration methods. The AC integration is a practical and cost-effective method thanks to its simple structure; however, its power quality protection is weak.
KARABIBER, A.
doaj +1 more source
Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures
Advanced Functional Materials, EarlyView.3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina +11 more
wiley +1 more source
Review of recent progresses on gallium nitride transistor in power conversion application
International Journal of Sustainable Energy, 2020 Emerging demands in sustainable energy and power conversion applications are calling for high frequency and high efficiency switching devices. Gallium nitride (GaN) as one type of wide bandgap material has shown its potential in applications where high ...
Jiangbo Tian +5 more
doaj +1 more source
Journal of the Magnetics Society of Japan, 2009 In a previous paper, we proposed a magnetic oscillation type dc-ac converter with sinusoidal output. An ac-voltage source is connected to an excitation winding of the magnetic circuit in series. The converter can supply electric power to the ac-voltage source because the current flowing through the ac-voltage source can be controlled by small signal ...
Y. Ogata, S. Okanuma
openaire +2 more sources
Advanced Functional Materials, EarlyView.The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich +6 more
wiley +1 more source