Results 81 to 90 of about 28,854 (308)

Dual Channel Control with DC Fault Ride Through for MMC-based, Isolated DC/DC Converter [PDF]

, 2017
This study is sponsored by the Engineering and Physical Sciences Research Council (EPSRC) grant no EP/K006428/1, 2013.D. Jovcic and H. Zhang are with the School of Engineering, University of Aberdeen, AB24 3UE, U.K.
Jovcic, Dragan, Zhang, Huibin
core   +1 more source

In Situ Copper Electroplating Turns Material Extrusion 3D Printers Into Metal–Polymer Hybrid Fabricators

Advanced Materials Technologies, EarlyView.
An in situ electroplating approach for MEX 3D printing is proposed, enabling copper deposition during the fabrication of conductive polymers. The method combines a printer‐integrated plating head, ML‐based g‐code control, and stop‐and‐go printing, achieving near‐bulk copper conductivity and enabling fully embedded, assembly‐free electronic components ...
Gianluca Percoco, Nicola Larovere, Antonio Zagaria, Antonio Pavone, Rosanna Rifino, Gianni Stano   +5 more
wiley   +1 more source

Switching Loss Reduction for an MMC-Fed AC/DC Converter

IEEE Open Journal of Power Electronics
Medium-voltage connected ultra-fast chargers are getting more popular for charging electric vehicles with large battery capacities. Here, the solution based on a modular multilevel converter is more promising, since the isolation stage can be realized as
Kaveh Pouresmaeil, Maurice G.L. Roes, Nico H. Baars, Cornelis G.E. Wijnands   +3 more
doaj   +1 more source

Design and Implementation of Multilevel Inverters for Fuel Cell Energy Conversion System

IEEE Access, 2020
Power converter plays a significant role in Proton Exchange Membrane Fuel Cell (PEMFC) energy generation systems, which is an alternative of distributed energy generation systems.
C. Dhanamjayulu, Shaik Reddi Khasim, Sanjeevikumar Padmanaban, G. Arunkumar, Jens Bo Holm-Nielsen, Frede Blaabjerg   +5 more
doaj   +1 more source

Improved natural balancing with modified phase shifted PWM for single-leg five-level flying-capacitor converters [PDF]

, 2012
Flying capacitor converters (FCCs), as most multilevel converter topologies, require a balancing mechanism of the capacitor voltages. FCCs have the valuable property of natural voltage balancing when a special modulation technique is used.
Melkebeek, Jan, Reznikov, Boris, Ruderman, Alex, Thielemans, Steven   +3 more
core   +1 more source

Cell capacitor sizing in multilevel converters: cases of the modular multilevel converter and alternate arm converter [PDF]

IET Power Electronics, 2015
Multilevel converters, such as the modular multilevel converter (MMC) or the alternate arm converter (AAC), rely on charged capacitors in their cells to generate their AC voltage waveform. Since the cell capacitors are physically large and occupy approximately half the cell volume, their capacitance must be kept minimal while limiting the voltage ...
Merlin, MMC, Green, TC
openaire   +3 more sources

Multilevel Optical Programming of Intrinsic Vacancies in Solution‐Processed MoS2 Films for Retinomorphic Color Differentiation

Advanced Optical Materials, EarlyView.
Solution‐processed MoS2 films with intrinsic sulfur‐vacancy traps are used to integrate light sensing and memory in a simple two‐terminal pixel. Successive optical pulses program persistent, multilevel conductance states, while oxygen exposure enables rapid erasure.
Jihyun Kim, Jiyong Yoon, Gwang Ya Kim, Kijeong Nam, Jaewon Heo, In Soo Kim, Dongjoon Rhee, Donghee Son, Joohoon Kang   +8 more
wiley   +1 more source

A Back-to-Back 2L-3L Grid Integration of a Marine Current Energy Converter

Energies, 2015
The paper proposes a back-to-back 2L-3L grid connection topology for a marine current energy converter. A prototype marine current energy converter has been deployed by a research group at Uppsala University.
Senad Apelfröjd, Rickard Ekström, Karin Thomas, Mats Leijon   +3 more
doaj   +1 more source

Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]

, 2010
A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Defaÿ, François, Fadel, Maurice, Llor, Ana-Maria   +2 more
core   +1 more source

The age of multilevel converters arrives [PDF]

IEEE Industrial Electronics Magazine, 2008
This work is devoted to review and analyze the most relevant characteristics of multilevel converters, to motivate possible solutions, and to show that we are in a decisive instant in which energy companies have to bet on these converters as a good solution compared with classic two-level converters. This article presents a brief overview of the actual
García Franquelo, Leopoldo, Rodríguez, José, León Galván, José Ignacio, Kouro, Sqamir, Martín Prats, María de los Ángeles, Portillo Guisado, Ramón Carlos   +5 more
openaire   +5 more sources