Results 31 to 40 of about 82,509 (301)

Design and losses analysis of a high power density machine for flooded pump applications [PDF]

open access: yes, 2018
This paper describes the design process of a 10 kW 19000 rpm high power density surface mounted permanent magnet synchronous machine for a directly coupled pump application.
Al-Timimy, Ahmed   +8 more
core   +2 more sources

Dielectric losses in hydrogenated VT1-0 titanium in distribution in eddy current [PDF]

open access: yes, 2005
For the first time introduced the concept of the value of the dielectric loss in the hydrogenated titanium. Measurement of this value allowing more sensitive measurement of the distribution of hydrogen in the titanium sample according to the depth.
Al-Hussein, Mahmoud   +5 more
core   +2 more sources

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

Eddy-current loss prediction in the rotor magnets of a permanent magnet synchronous generator with modular winding feeding a rectifier load [PDF]

open access: yes, 2011
In a permanent magnet synchronous generator (PMSG) with modular winding, significant eddy current may be induced in the rotor magnets due to asynchronous rotating stator magneto-motive forces (MMFs), and a rectifier load may signify the situation further.
Dong, J   +4 more
core   +1 more source

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

Loss mechanisms in superconducting thin film microwave resonators

open access: yes, 2016
We present a systematic analysis of the internal losses of superconducting coplanar waveguide microwave resonators based on niobium thin films on silicon substrates.
Deppe, Frank   +12 more
core   +1 more source

Experimental Study of Iron Losses Generated by a Uniform Rotating Field [PDF]

open access: yes, 2017
This paper introduces a mock-up with a solid iron cylinder rotating in a fixed excitation frame powered by dc current. A uniform field is created in the rotating cylinder, which is driven by an external motor. The braking torque is measured, allowing the
Bernot, Alix   +3 more
core   +3 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

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   +2 more sources

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

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