Results 21 to 30 of about 143,179 (310)

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

Increase the Efficiency of an Induction Motor Feed from Inverter for Low Frequencies by Combining Design and Control Improvements

open access: yesEnergies, 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
doaj   +1 more source

Single sheet tester for measuring core losses with novel adaptive algorithm of waveform [PDF]

open access: yesArchives of Electrical Engineering, 2022
This paper presents a novel method of waveform generation in a single-sheet tester (SST) for measuring core losses and permeability in a steel sheet. Some improvements and modifications of the apparatus are also described.
Tomasz Lerch, Michał Rad, Witold Rams
doaj   +1 more source

Optimal Inductor Design Method for GaN-Based PFC

open access: yesIEEE 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
doaj   +1 more source

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

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

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

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

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

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