Results 11 to 20 of about 355,695 (265)

Power Efficiency Improvement of a Boost Converter Using a Coupled Inductor with a Fuzzy Logic Controller: Application to a Photovoltaic System

open access: yesApplied Sciences, 2021
DC/DC converters are widely used in photovoltaic (PV) systems to track the maximum power points (MPP) of a photovoltaic generator (PVG). The variation of solar radiation (G) and PV cells temperature (T) affect the power efficiency of these DC/DC ...
Nabil Abouchabana   +4 more
doaj   +1 more source

Reactance Regulation Using Coils with Perpendicular Magnetic Field in the Tubular Core design

open access: yesApplied Sciences, 2020
This article presents an efficient method for prosumer connection to the distribution line. The prosumers can be connected to the distribution line using specially designed controllable reactive impedance.
Shailendra Rajput   +3 more
doaj   +1 more source

Modeling transcranial magnetic stimulation coil with magnetic cores

open access: yesJournal of Neural Engineering, 2023
Abstract Objective. Accurate modeling of transcranial magnetic stimulation (TMS) coils with the magnetic core is largely an open problem since commercial (quasi) magnetostatic solvers do not output specific field characteristics (e.g.
Sergey N Makaroff   +5 more
openaire   +2 more sources

Magnetic Fields in the Massive Dense Cores of the DR21 Filament: Weakly Magnetized Cores in a Strongly Magnetized Filament [PDF]

open access: yesThe Astrophysical Journal, 2017
Abstract We present Submillimeter Array 880 μm dust polarization observations of six massive dense cores in the DR21 filament. The dust polarization shows complex magnetic field structures in the massive dense cores with sizes of 0.1 pc, in contrast to the ordered magnetic fields of the parsec-scale filament.
Tao-Chung Ching   +5 more
openaire   +2 more sources

Multiscale modeling of magnetic distribution of ribbon magnetic cores [PDF]

open access: yesCES Transactions on Electrical Machines and Systems, 2018
The multiscale finite element method (MsFEM) combined with conventional finite element method (CFEM) is proposed to solve static magnetic field in the ribbon magnetic core with non-periodical corners considered. Firstly, a simple 2-dimensional electrostatic problem is used to introduce the MsFEM implementation process.
Li, Hailin   +3 more
openaire   +3 more sources

Magnetic Characterization in the Rayleigh Region of Nanocrystalline Magnetic Cores [PDF]

open access: yesMaterials, 2018
We report on the structural and magnetic characterization of two nanocrystalline Finemet-type magnetic cores. The nanocrystalline structure developed after annealing the amorphous precursor alloy at 550 °C for 30 and 60 min of annealing time. Structural analysis carried out by means of X-ray diffraction providing useful information on the grain size ...
Mikel Osinalde   +7 more
openaire   +3 more sources

EFFICIENT SHIELDING OF THREE-PHASE CABLE LINE MAGNETIC FIELD BY PASSIVE LOOP UNDER LIMITED THERMAL EFFECT ON POWER CABLES

open access: yesElectrical engineering & Electromechanics, 2019
This paper deals with a mitigation of a three-phase cable line magnetic field by a new type of passive shield. We consider a cable line with a flat arrangement of cables. The developed single-loop shield has an asymmetric magnetic coupling with the cable
V. Yu. Rozov   +3 more
doaj   +1 more source

Permeability of Magnetic Cores with Air Gaps [PDF]

open access: yesMaterials, 2022
The influence of the geometric dimensions of the cut core and the number and size of air gaps on the effective permeability was investigated. Using dimensional analysis, an equation was obtained that relates the permeability of the cut core to the simplest dimensionless combination of the mean magnetic flux length l, single air gap length lg1, the ...
Yuri N. Starodubtsev   +3 more
openaire   +3 more sources

Effect of SiO2/Organosilicone Double Insulation Coating Processes on the Properties of Ferrosilicon Magnetic Cores

open access: yesMagnetochemistry, 2023
A nano-SiO2 inorganic insulation layer was coated on the surface of FeSi magnetic powder via in situ fluidised vapour deposition. The surface was then coated with organosilicon resin to form an inorganic/organic double-insulating layer.
Shaochuan Lin   +5 more
doaj   +1 more source

Review of Wireless Charging System: Magnetic Materials, Coil Configurations, Challenges, and Future Perspectives

open access: yesEnergies, 2023
Electric transportation will assist in lowering emissions of greenhouse gases and mitigating the impact of rising petrol prices. To promote the widespread adoption of electric transportation, a diverse range of charging stations must be established in an
Pradeep Vishnuram   +7 more
doaj   +1 more source

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