Results 1 to 10 of about 44,052 (165)

Predicting Iron Losses in Laminated Steel with Given Non-Sinusoidal Waveforms of Flux Density

open access: yesEnergies, 2015
In electrical machines, iron losses are essential for electromagnetic and thermal designs and analyses. Although many models have been proposed to predict iron losses in magnetic materials, the calculation of iron losses under non-sinusoidal excitations ...
Wei Chen   +3 more
doaj   +3 more sources

Iron absorption and loss, and efficacy of iron supplementation with and without prebiotics in children with virally suppressed HIV: three prospective studies in South Africa [PDF]

open access: yesNature Communications
Children living with HIV are at risk for iron deficiency, yet optimal strategies for prevention and treatment remain unclear. Here, we investigate iron absorption, losses, and the efficacy and safety of oral iron supplementation with versus without ...
Jeannine Baumgartner   +6 more
doaj   +2 more sources

Effect of the Temperature on the Magnetic and Energetic Properties of Soft Magnetic Composite Materials

open access: yesEnergies, 2021
In recent years, innovative magnetic materials have been introduced in the field of electrical machines. In the ambit of soft magnetic materials, laminated steels guarantee good robustness and high magnetic performance but, in some high-frequency ...
Luca Ferraris   +4 more
doaj   +1 more source

Effect of the Insulating Layer on the Properties of SMC Inductors

open access: yesApplied Sciences, 2022
In inductor applications, different soft magnetic materials are used depending on the frequency range. Owing to powder metallurgy technology and to the increase in the implementation of innovative multifunctional materials, it is possible to find an ...
Emir Pošković   +2 more
doaj   +1 more source

Hysteresis Measurements and Numerical Losses Segregation of Additively Manufactured Silicon Steel for 3D Printing Electrical Machines

open access: yesApplied Sciences, 2020
Samples from FeSi4 powder were fabricated with a low power selective laser melting (SLM) system using a laser re-melting strategy. The sample material was characterized through magnetic measurements.
Hans Tiismus   +5 more
doaj   +1 more source

Calculation improvement of no-load stray losses in induction motors with experimental validation [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2015
On the basis of the known fact that all air gap main flux density variations are enclosed by permeance slot harmonics, only one component of stray losses in rotor (stator) iron is considered in the new classification, instead of 2 components ...
Kostić Miloje M.
doaj   +1 more source

Iron-Loss and Magnetization Dynamics in Non-Oriented Electrical Steel: 1-D Excitations Up to High Frequencies

open access: yesIEEE Access, 2020
This paper presents a thorough introduction to and application of the Parametric Magneto-Dynamic (PMD) model of soft magnetic steel sheets. The theoretical background is reviewed, and two different ways are discussed to account for the viscosity-like ...
Martin Petrun, Simon Steentjes
doaj   +1 more source

MRAS-Based Induction Machine Magnetizing Inductance Estimator With Included Effect of Iron Losses and Load

open access: yesIEEE Access, 2021
Although still widely used due to its robustness, reliability, and low cost, induction motor (IM) has a disadvantage of more complicated mathematical description than permanent magnet AC machines.
Ondrej Lipcak, Jan Bauer
doaj   +1 more source

Iron Loss Analysis of a Concentrated Winding Type Interior Permanent Magnet Synchronous Motor with Single and Dual Layer Magnet Shape

open access: yesMachines, 2021
In this study, the iron losses of high flux density concentrated winding-type interior permanent magnet synchronous motors for three different magnet shapes (single-V, single-flat, and dual-delta) and rotor structures are analyzed and compared. Iron loss
Chan-Ho Baek   +2 more
doaj   +1 more source

Iron Loss Calculation Methods for Numerical Analysis of 3D-Printed Rotating Machines: A Review

open access: yesEnergies, 2023
Three-dimensional printing is a promising technology that offers increased freedom to create topologically optimised electrical machine designs with a much smaller layer thickness achievable with the current, laminated steel-sheet-based technology. These
Tamás Orosz   +4 more
doaj   +1 more source

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