Results 11 to 20 of about 173,997 (307)

Rotor Eddy-Current loss in permanent-magnet brushless AC machines [PDF]

open access: yes, 2010
This paper analyzes rotor eddy-current loss in permanent-magnet brushless ac machines. It is shown that analytical or finite-element techniques published in literature for predicting rotor eddy-current loss using space harmonic based approaches may not ...
Arshad, W.M.   +4 more
core   +1 more source

Computationally efficient 3D analytical magnet loss prediction in surface mounted permanent magnet machines [PDF]

open access: yes, 2017
This study proposes a computationally efficient analytical method, for accurate prediction of three-dimensional (3D) eddy current loss in the rotor magnets of surface mounted permanent magnet (SPM) machines considering slotting effect.
Aslan B.   +33 more
core   +1 more source

Analysis of Eddy Current Loss of 120-kW High-Speed Permanent Magnet Synchronous Motor

open access: yesMachines, 2022
Pulse width modulation current harmonics and space harmonics are some of the major factors affecting the rotor eddy current loss of the high-speed permanent magnet motor.
Bo Pan   +4 more
doaj   +1 more source

Eddy-current loss in the rotor magnets of permanent-magnet brushless machines having a fractional number of slots per pole [PDF]

open access: yes, 2005
We develop an analytical model for predicting the eddy-current loss in the rotor magnets of permanent-magnet brushless machines that have a fractional number of slots per pole, when either all the teeth or only alternate teeth are wound, and in which the
Howe, D., Ishak, D., Zhu, Z.Q.
core   +1 more source

Copper loss analysis and loss separation method in a dynamic process of ultra‐high speed motor with slotless stator

open access: yesIET Electric Power Applications, 2023
Different from the copper loss of general permanent magnet (PM) motors, the copper loss of ultra‐high‐speed permanent magnet motors (UHSPMSM) includes DC losses and eddy current losses, which lead to difficulty in analysis.
Qixing Gao   +3 more
doaj   +1 more source

Curvature-related eddy-current losses in laminated axial flux machine cores [PDF]

open access: yes, 2005
In this paper we present an axiperiodic quasi-static model to evaluate the magnetic flux density distribution and power loss due to curvature related radial flux in the laminated core of axial flux machines.
Ahfock, Tony L., Hewitt, Andrew
core   +2 more sources

Visualization and quantitative evaluation of eddy current loss in bar-wound type permanent magnet synchronous motor for mild-hybrid vehicles

open access: yesCES Transactions on Electrical Machines and Systems, 2019
This paper describes the conductor eddy current loss that occurs in a permanent magnet type synchronous motor with a distributed winding stator using a rectangular copper wire designed for mild hybrid system applications for small vehicles. Compared with
Masahiro Aoyama, Jianing Deng
doaj   +1 more source

Analysis and Design of Novel High Speed Permanent Magnet Machine Considering Magnet Eddy Current Loss

open access: yesIEEE Access, 2020
In high speed permanent magnet (HSPM) machines, the computation of magnet eddy current loss is essential as these losses significantly affect the temperature of the permanent magnet (PM) and electromagnetic performance and can result in irreversible ...
Hamid Ali Khan   +3 more
doaj   +1 more source

An Improved Approach to Calculate Eddy Current Loss in Soft Magnetic Materials Based on Measured Hysteresis Loops

open access: yesEnergies, 2022
The paper presents a study of the influence of magnetic hysteresis on macroscopic eddy current losses. Usually, this loss is calculated within many simplifying assumptions, of which the most striking is not only neglecting the hysteresis, but also the ...
Paweł Jabłoński   +2 more
doaj   +1 more source

Influence of PWM on the proximity loss in permanent magnet brushless AC machines [PDF]

open access: yes, 2008
The winding copper loss can be significantly increased due to skin and proximity eddy current effects. The skin and proximity losses due to fundamental frequency current has been investigated in literature, but the influence of PWM on the skin and ...
Bremner, J.   +5 more
core   +1 more source

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