Results 31 to 40 of about 82,272 (307)

Filter Influence on Rotor Losses in Coreless Axial Flux Permanent Magnet Machines

open access: yesAdvances in Electrical and Computer Engineering, 2013
This paper investigates the eddy current losses induced in the rotor of coreless Axial-Flux machines. The calculation of eddy currents in the magnets requires the simulation of the inverter and the filter to obtain the harmonic content of the stator ...
SANTIAGO, J.   +2 more
doaj   +1 more source

A Combined Experimental and Finite Element Analysis Method for the Estimation of Eddy-Current Loss in NdFeB Magnets

open access: yesSensors, 2014
NdFeB permanent magnets (PMs) are widely used in high performance electrical machines, but their relatively high conductivity subjects them to eddy current losses that can lead to magnetization loss.
Radu Fratila   +3 more
doaj   +1 more source

Cable Design for FAIR SIS 300 [PDF]

open access: yes, 2007
GSI, Darmstadt is preparing to build FAIR (Facility for Antiproton and Ion Research) which include SIS 300, a 300T - m fast-ramping heavy ion synchrotron. Dipoles for this ring will be 2.9 m long, producing 6 T over a 100 mm coil aperture and ramped at 1
Ghosh, A.K.   +4 more
core   +3 more sources

Prediction of Electromagnetic Characteristics in Stator End Parts of a Turbo-Generator Based on MLP and SVR

open access: yesEnergies, 2021
In order to study the multiple restricted factors and parameters of the eddy current loss of generator end structures, both the multi-layer perceptron (MLP) and support vector regression (SVR) are used to study and predict the mechanism of the ...
Likun Wang   +6 more
doaj   +1 more source

A Computationally Efficient Method for Calculation of Strand Eddy Current Losses in Electric Machines [PDF]

open access: yes, 2016
In this paper, a fast finite element (FE)-based method for the calculation of eddy current losses in the stator windings of randomly wound electric machines with a focus on fractional slot concentrated winding (FSCW) permanent magnet (PM) machines will ...
Chuan Chong, Yew   +5 more
core   +2 more sources

Analysis and Experiment of Eddy Current Loss in Radial Magnetic Bearings with Solid Rotor

open access: yesMATEC Web of Conferences, 2018
In order to reduce power losses for the aerospace applications, this paper analyzes the eddy current losses produced by high-speed rotating solid rotor core magnetic bearings of magnetically suspended control & sensitive gyroscope (MSCSG).
Yin Zengyuan   +3 more
doaj   +1 more source

Extraction of Rotor Eddy-Current Harmonic Losses in High-Speed Solid-Rotor Induction Machines by an Improved Virtual Permanent Magnet Harmonic Machine Model

open access: yesIEEE Access, 2019
High-speed induction machines equipped with a solid steel rotor are capable of achieving a high-rotating speed than other types of machines, because of their simpler and more robust rotor structure.
Chong Di, Ilya Petrov, Juha J. Pyrhonen
doaj   +1 more source

Inclusion of hysteresis and eddy current losses in dynamic induction machine models [PDF]

open access: yes, 2009
This paper proposes a method for including both hysteresis losses and eddy current losses in the dynamic space vector model of induction machines. The losses caused by the rotation and magnitude changes of the flux vector are taken into account.
Dlala, Emad   +4 more
core   +1 more source

Prediction of eddy current losses in cooling tubes of direct cooled windings in electric machines [PDF]

open access: yes, 2019
The direct coil cooling method is one of the existing cooling techniques for electric machines with concentrated windings, in which cooling tubes of conductive material are inserted between the windings.
Ibrahim, Mohamed, Sergeant, Peter
core   +2 more sources

Association of Corticospinal Tract Asymmetry With Ambulatory Ability After Intracerebral Hemorrhage

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Ambulatory ability after intracerebral hemorrhage (ICH) is important to patients. We tested whether asymmetry between ipsi‐ and contra‐lesional corticospinal tracts (CSTs) assessed by diffusion tensor imaging (DTI) is associated with post‐ICH ambulation.
Yasmin N. Aziz   +25 more
wiley   +1 more source

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