Results 81 to 90 of about 8,261,049 (301)

A statistic study of harmonics and interharmonics at a modern wind-turbine

, 2014
The work presents measurements of harmonics and interharmonics from a modern wind turbine over a period of several days, using a conventional power quality monitor.
Kai Yang, E.O. Anders Larsson, Mats Wahlberg, Math H. J. Bollen, Bollen, Math,, Larsson, Anders,, Wahlberg, Mats,, Yang, Kai,   +7 more
core   +1 more source

Prediction of AC line current harmonics for non-classical thyristor-controlled loads

, 2020
Prediction of AC line current harmonics for non-classical thyristor-controlled ...
Pradeep K. Sood (9567781)
core   +1 more source

Current Harmonics Suppression of Six-Phase Permanent-Magnet Synchronous Motor Drives Using Back-Electromotive Force Harmonics Compensation

Energies
This paper investigates a back-electromotive force (EMF) harmonic compensation strategy for six-phase permanent-magnet synchronous motors (PMSMs) to reduce current harmonics and improve system performance.
Po-Sheng Huang, Cheng-Ting Tsai, Jonq-Chin Hwang, Cheng-Tsung Lin, Yu-Ting Lin   +4 more
doaj   +1 more source

Thermal analysis of low-voltage power cables considering the presence of current harmonics [PDF]

Quy Nhon University Journal of Science
In practical design and selection of low-voltage power cables, the heating effects caused by current harmonics are often not sufficiently considered. In addition, with the increasing penetration of nonlinear loads and renewable energy sources
Kim Anh Nguyen, Huynh Dai, Thi Thu Le, Huy Hoang Le, Ba Tu Phung   +4 more
doaj   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

Advanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford, Anne Flechsig, Shilei Ding, Emir Karadža, Niklas Kercher, Tobias Goldenberger, Elisabeth Müller, Pietro Gambardella, Laura J. Heyderman, Aleš Hrabec   +9 more
wiley   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Wind power harmonic aggregation of multiple turbines in power bins

, 2014
The paper presents current harmonic and interharmonic measurement of a Type-IV wind turbine. Characterizations and classifications have been performed with the representation of harmonics and interharmonics in a complex plane.
Kai Yang, E.O. Anders Larsson, Math H. J. Bollen, Bollen, Math,, Larsson, Anders,, Yang, Kai,   +5 more
core   +1 more source

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

Advanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko, Jaimin Kang, Su Jae Kim, Hanhwi Jang, Do‐Kyeong Nam, Minseok Kang, Sunghoon Kim, Yeon Sik Jung, Se‐Young Jeong, Kab‐Jin Kim, Byong‐Guk Park   +10 more
wiley   +1 more source

Optimal Zero Cross Current Distortions Suppression Method for Vienna Three-Phase Rectifier

IEEE Access
Vienna three phase rectifiers are widely used in many fields due to their high efficiency and performance. However, the Vienna topology results in significant distortions of the current at the zero-crossing point, thereby increasing the current harmonics.
Hongda Song, Li Liu, Xiaolei Che, Yimin Gong, Yang Yang, Jiannan Zhang   +5 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