Results 101 to 110 of about 842,734 (293)

Development of a test facility to study the effect of voltage harmonics on the heating of asynchronous motors

Российская Арктика
This article highlights the importance of studying the quality indicator known as the non-sinusoidality of the supply voltage. It examines the impact of non-sinusoidal voltage on the heating of an asynchronous motor (IM).
A.A. Ivanov, S.V. Kakaurov, I.F. Suvorov, I.E. Ivagin   +3 more
doaj   +1 more source

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

Advanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra, Tobias Schwaigert, Yingxin Zhu, Aiden Ross, Muhammad Aminul Haque Chowdhury, Shun‐Li Shang, Sameer Singh, Zhiyu Zhang, Zhe Wang, Brynn Brower, Saugata Sarker, Suchismita Sarker, Zi‐Kui Liu, Rama K. Vasudevan, Long‐Qing Chen, Yang Yang, Darrell G. Schlom, Venkatraman Gopalan   +17 more
wiley   +1 more source

Single-phase series active compensator integrated with a rectifier for voltage sags, swells and harmonics mitigation

, 2014
A single-phase series active compensator is proposed to mitigate voltage sag, swell and voltage harmonics along with reducing harmonic currents at the AC mains. The DC link capacitor of the series active compensator is shared with a voltage fed load thus
Singh, Bhim, Arun Kumar Verma, Mathuria, Kirti, Verma, Arun Kumar, Bhuvaneswari, G., G. Bhuvaneswari, Kirti Mathuria, Bhim Singh   +7 more
core   +1 more source

Detailed analysis of closed-loop control of output-voltage harmonics in voltage-source inverters [PDF]

, 2004
Artículos en revistasThis paper investigates the design and application of selective controllers for voltage-source-inverter output control. These controllers can be applied to minimise the effects of the inverter dead times on output-voltage harmonics ...
García Cerrada, Aurelio, Roncero Sánchez-Elipe, Pedro Luis, Feliú Batlle, Vicente, García González, Pablo   +3 more
core   +1 more source

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

Advanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare, Craig S. Knox, Ahmet Yagmur, Sara Ghayeb Zamharir, Lianhe Li, Satoshi Sasaki, A. Giles Davies, Edmund H. Linfield, Joshua R. Freeman, Miriam S. Vitiello   +9 more
wiley   +1 more source

A direct A.C. to A.C. regenerative frequency and voltage converter [PDF]

, 1980
Includes bibliographical references.The reliable variable speed operation of an a. c. machine over a wide speed range is a problem that has received attention for some time.
Case, Michael James
core   +1 more source

High‐Power Voltage Source Converter for Integration of Battery in Power System

IET Energy Systems Integration
To address grid instability caused by intermittent renewable energy, this work proposes utility‐scale battery energy storage (BES) integration using a hybrid multilevel and multipulse voltage source converter (VSC) topology, which overcomes the ...
Subir Karmakar, Bhim Singh, Ambrish Chandra, Kamal Al‐Haddad   +3 more
doaj   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

Advanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber, Álvaro Rodríguez Echarri, Vahagn Mkhitaryan, Fadil Iyikanat, Frederik Schiller, Philip Walther, J. Enrique Ortega, Lee A. Rozema, F. Javier García de Abajo   +10 more
wiley   +1 more source

Voltage Protection and Harmonics Cancellation in Low Voltage Distribution Network

International Journal of New Practices in Management and Engineering, 2018
Nowadays low voltage distribution network is considered as worldwide future generation distribution network. But the major concern is harmonics generation and steps taken to cancel those harmonics. In our proposed work, low voltage distribution network is designed with low voltage and harmonics are cancelled in our method.
openaire   +2 more sources

Robust Spin Splitting and Fermiology in the Layered Altermagnet CoNb4${\rm CoNb}_4$Se8${\rm Se}_8$

Advanced Materials, EarlyView.
The emergence of an altermagnetic phase is demonstrated in the cobalt‐intercalated superconducting 2H‐NbSe2 polymorph. A combined theoretical and experimental approach directly probes the magnetism, the altermagnetic lifting of Kramers degeneracy, and the electronic phase space, establishing CoNb4Se8 as the first g‐wave altermagnetic layered material ...
Alessandro De Vita, Chiara Bigi, Davide Romanin, Matthew D. Watson, Vincent Polewczyk, Marta Zonno, François Bertran, Pietro M. Forcella, My Bang Petersen, Federico Motti, Giovanni Vinai, Manuel Tuniz, Federico Cilento, Mario Cuoco, Brian M. Andersen, Andreas Kreisel, Luciano Jacopo D'Onofrio, Oliver J. Clark, Mark T. Edmonds, Christopher Candelora, Muxian Xu, Siyu Cheng, Alexander LaFleur, Tommaso Antonelli, Giorgio Sangiovanni, Lorenzo Del Re, Ivana Vobornik, Jun Fujii, Fabio Miletto Granozio, Alessia Sambri, Emiliano Di Gennaro, Jeppe B. Jacobsen, Henrik Jacobsen, Iulia Cojocariu, Marcin Szpytma, Andrea Locatelli, Tevfik Mentes, Won Seop Song, Jun Sung Kim, Matthieu Jamet, Jean‐François Jacquot, Pasquale Orgiani, Ralph Ernstorfer, Ilija Zeljkovic, Younghun Hwang, Matteo Calandra, Jill A. Miwa, Federico Mazzola   +47 more
wiley   +1 more source