Results 11 to 20 of about 2,316,046 (304)

The Effect of Sample’s Dimension and Cutting Technology on Magnetization and Specific Iron Losses of FeSi Laminations

open access: yesEnergies, 2022
The process of cutting laminations from which the cores of electric machines are built causes a change in their magnetic properties and losses, which can significantly affect machines’ parameters, mainly losses of power and efficiency.
Maria Dems   +3 more
doaj   +1 more source

Influence of Non-Linearity in Losses Estimation of Magnetic Components for DC-DC Converters

open access: yesEnergies, 2021
In this paper, the problem of estimating the core losses for inductive components is addressed. A novel methodology is applied to estimate the core losses of an inductor in a DC-DC converter in the time-domain.
Fabio Corti   +4 more
doaj   +1 more source

Analysis of Modular Stator PMSM Manufactured Using Oriented Steel

open access: yesEnergies, 2021
Oriented steel has higher permeability and lower losses in the direction of orientation (the rolling direction) than non-oriented steel. However, in the transverse direction, oriented steel typically has lower permeability and higher losses.
Anmol Aggarwal   +3 more
doaj   +1 more source

Non-Destructive Electromagnetic Evaluation of Material Degradation Due to Steel Cutting in a Fully Stacked Electrical Machine

open access: yesEnergies, 2022
Although it is well known that the magnetic properties of electrical steel can be deeply affected by the cutting process, it is still not clear how to accurately evaluate these effects on a prototyped machine on its final shape, especially at a high ...
Ahmed Selema   +2 more
doaj   +1 more source

The Effect of Winding Curvature and Core Permeability on the Power Losses and Leakage Inductance of High-Frequency Transformers [PDF]

open access: yes, 2021
At the frequencies used in switching dc-dc converters, the skin and proximity effects have a significant effect on both the losses and leakage inductance of the transformers used in these circuits.
Whitman, Daniel J.
core   +1 more source

Adaptive Switching Frequency Selection Based on Two-Step Efficiency Optimization for Grid-Connected Inverters

open access: yesIEEE Access, 2021
A two-step efficiency optimization of a three-phase voltage source inverter with series R damped LCL filter is proposed. The first optimization step aims to find the optimal parameters of the series R damped LCL filter at rated load conditions.
Ahmed Koran   +2 more
doaj   +1 more source

Study on magnetic properties of FeSiCr soft magnetic powders prepared by water atomization

open access: yesFenmo yejin jishu, 2021
The FeSiCr soft magnetic alloy powders were prepared by water atomization, and the powders with the particle size (D50) between 5 and 40 μm were obtained.
MENG Ling-bing   +5 more
doaj   +1 more source

Fast Method for the Iron Losses Prediction in Inverter Fed Induction Motors [PDF]

open access: yes, 2009
In this paper an easy method for the iron loss prediction in PWM inverter fed induction motors is presented. The method was initially proposed and validated for the prediction of the iron losses in non-oriented soft magnetic material with PWM supply ...
A. Boglietti   +5 more
core   +1 more source

Power Losses Models for Magnetic Cores: A Review

open access: yesMicromachines, 2022
In power electronics, magnetic components are fundamental, and, unfortunately, represent one of the greatest challenges for designers because they are some of the components that lead the opposition to miniaturization and the main source of losses (both ...
Daniela Rodriguez-Sotelo   +5 more
doaj   +1 more source

Core Losses and Torque Ripple in IPM Machines: Dedicated Modeling and Design Trade Off [PDF]

open access: yes, 2009
The proper combination of stator and rotor slot numbers is pursued in the design of interior permanent-magnet (IPM) motors with wide constant-power speed range.
P. Guglielmi   +12 more
core   +1 more source

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