Results 41 to 50 of about 2,212 (179)

Increasing voltage utilization in split-link, four-wire inverters [PDF]

open access: yes, 2009
Three-phase four-wire inverters, with either three-leg or four-leg topology, are useful for interfacing distributed generation to networks of unbalanced loads, but neither of the available circuit topologies is ideal.
Feng, C, Green, TC, Liang, J, Weiss, G
core   +1 more source

Fault management strategies and architecture design for turboelectric distributed propulsion [PDF]

open access: yes, 2016
The TeDP concept has been presented as a possible solution to reduce aircraft emissions despite the continuing trend for increased air traffic. However, much of the benefit of this concept hinges on the reliable transfer of electrical power from the ...
Flynn, M.-C.   +3 more
core   +1 more source

Bridging Superconductors With United Nations Development Goals: Perspectives and Applications

open access: yesphysica status solidi (a), Volume 223, Issue 7, 7 April 2026.
Ceramic superconductors enable sustainable technologies. A bibliometric review of 33,756 publications (1980–2025) assesses their alignment with the UN Sustainable Development Goals. Key applications identified from include clean propulsion, efficient power grids, advanced medical imaging, and quantum computing, highlighting both their transformative ...
Edimar A. S. Duran   +9 more
wiley   +1 more source

Reliability of an all-optical differential current detection technique during environmental temperature perturbations [PDF]

open access: yes, 2014
The reliability of a novel, all-optical differential current protection scheme over varying environmental conditions is investigated in this paper. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and ...
Fusiek, Grzegorz   +2 more
core   +1 more source

Fast and Simple Series Resistance Imaging for Tandem Solar Cells Using Differential Luminescence

open access: yesSolar RRL, Volume 10, Issue 6, 29 March 2026.
This article presents a method for imaging the series resistance of subcells in a multijunction device. It requires few input properties, no current or voltage calibration and only three measured images. Validated on single junction and multijunction perovskite‐based devices, this method provides a practical tool for advancing photovoltaic research and
Cyril Leon   +5 more
wiley   +1 more source

A Hybrid Thermal and Machine Learning Approach for Predicting Temperature Rise in Low-Voltage Switchgear

open access: yesIEEE Access
This paper proposes a hybrid thermoelectric and data-driven methodology to predict temperature rise in Low-Voltage Electrical Switchgear Panels (LVESP).
Alesandre Alves   +5 more
doaj   +1 more source

Impact Assessment of Hypothesized Cyberattacks on Interconnected Bulk Power Systems

open access: yes, 2018
The first-ever Ukraine cyberattack on power grid has proven its devastation by hacking into their critical cyber assets. With administrative privileges accessing substation networks/local control centers, one intelligent way of coordinated cyberattacks ...
Ginter, Andrew   +4 more
core   +1 more source

A predictive control with flying capacitor balancing of a multicell active power filter [PDF]

open access: yes, 2008
Unlike traditional inverters, multicell inverters have the following advantages: lower switching frequency, high number of output levels, and less voltage constraints on the insulated-gate bipolar transistors.
Defaÿ, François   +2 more
core   +1 more source

Indium‐Free Recombination Junctions on Tunnel Oxide Passivating Contacts for Fully Textured Perovskite/Silicon Tandem Solar Cells

open access: yesSolar RRL, Volume 10, Issue 5, 12 March 2026.
We compare aluminum‐doped zinc oxide (AZO) and zinc‐doped tin oxide (ZTO) with indium tin oxide (ITO) as indium‐free transparent conductive recombination layers on textured TOPCon bottom cells for application in perovskite/silicon tandem devices. Sputter damage, passivation recovery, as well as optoelectrical material properties are studied.
Mario Hanser   +16 more
wiley   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

open access: yesAdvanced Functional Materials, Volume 36, Issue 24, 23 March 2026.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken   +6 more
wiley   +1 more source

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