Results 1 to 10 of about 130,646 (162)
Physical Modeling of Core Losses in Ferrite E-Cores
IEEE Open Journal of Power ElectronicsThe development of advanced power electronic converters requires an accurate calculation of core losses in magnetic devices. But the losses in the widely used ferrite cores depend on the shape of the core, especially above 10 kHz, meaning that core ...
Theophane Dimier, Jurgen Biela
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Breakdown of the dipole approximation in core losses.
Ultramicroscopy, 2011 The validity of the dipole approximations commonly used in the inelastic scattering theory for transmission electron microscopy is reviewed. Both experimental and numerical arguments are presented, emphasizing that the dipole approximations cause significant errors of the order of up to 25% even at small momentum transfer.
Löffler S +4 more
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Analysis of Core Losses in Transformer Working at Static Var Compensator
Energies, 2023 This article presents the comparison of 3D and 2D finite element models of a power transformer designed for reactive power compensation stations. There is a lack of studies in the literature on internal electromagnetic phenomena in the active part of a ...
Piotr Osinski, Pawel Witczak
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Mathematical and Computational ApplicationsThis work introduces a 2D model that calculates power losses in coaxial magnetic gears (CMGs). The eddy current losses of the magnets are computed analytically, whereas the core losses of the ferromagnetic segments are computed using an analytical–finite
Nikolina Nikolarea +5 more
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Determination of Core Losses in Open-Core Power Voltage Transformers
IEEE Access, 2018 Power voltage transformers (PVTs) are becoming increasingly present in different substation solutions on a world scale. Such units that are based on the open-core concept introduce several advantages in terms of transformer performance and reliability ...
Igor Ziger, Bojan Trkulja, Zeljko Stih
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On-Line Core Losses Determination in ACSR Conductors for DLR Applications [PDF]
Materials, 2022 Manuel Moreno-Eguilaz +2 more
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IEEE Access, 2023 The article proposes a method to measure core losses in magnetic elements for medium-frequency power electronics circuits working in conditions close to those in many real industrial circuits: supplied with square-wave voltage and working in linear ...
Maciej Chojowski +4 more
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Applied Sciences, 2022 A procedure for improving the energy, economic and environmental sustainability of the transformation houses in low-voltage distribution networks is described in this paper.
Vicente León-Martínez +5 more
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Energies, 2022 Speed-controlled induction motors have the most significant potential for energy savings. The greatest problems with obtaining high efficiency occur in motors with a wide range of rotational speed regulation, as in the motors for driving industrial ...
Maria Dems +3 more
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Optimal Inductor Design Method for GaN-Based PFC
IEEE Access, 2023 The main theme of this paper is to propose an optimal inductor design method for GaN-based PFC. The proposed method is developed based upon the minimization of PFC total losses, which include copper losses, core losses and switching losses of power ...
Yong-Yi Huang, Yen-Shin Lai
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