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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   +2 more sources

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

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

Eddy current losses — A correction [PDF]

open access: yesJournal of the American Institute of Electrical Engineers, 1921
n ...
openaire   +1 more source

A Novel Sleeve Design to Reduce the Eddy Current Loss of High-Speed Electrical Machines

open access: yesMachines, 2023
Demand for high-speed motors is increasing. Surface-mounted permanent magnet synchronous motors (SPMSM) used in high-speed applications have magnets attached to the rotor, so there is a risk of damage and scattering due to centrifugal force as the speed ...
Seung-Heon Lee   +4 more
doaj   +1 more source

Electromagnetic-Thermal Model for Improved Axial-Flux Eddy Current Couplings With Combine Rectangle-Shaped Magnets

open access: yesIEEE Access, 2018
An improved structure for axial-flux eddy current couplings with combined rectangleshaped magnets is proposed to minimize cogging torque without sacrificing torque density. Then, a novel analytical electromagnetic-thermal model, which takes the change of
Di Zheng   +5 more
doaj   +1 more source

Interior Permanent Magnet Synchronous Motor Design for Eddy Current Loss Reduction in Permanent Magnets to Prevent Irreversible Demagnetization

open access: yesEnergies, 2020
We designed and analyzed an interior permanent magnet synchronous motor (IPMSM) to prevent irreversible demagnetization of the permanent magnets (PMs). Irreversible demagnetization of NdFeB PMs mainly occurs due to high temperature, which should thus be ...
Jae-Woo Jung   +3 more
doaj   +1 more source

Multi-objective optimal design of permanent magnet eddy current retarder based on NSGA-II algorithm

open access: yesEnergy Reports, 2022
As a new type of vehicle auxiliary braking device, permanent magnet eddy current retarder has a wide application prospect. In this paper, the linear layer analysis method and non-dominated sorting genetic algorithm-II (NSGA-II) are combined to optimize ...
Bowen Niu, Dazhi Wang, Pengyi Pan
doaj   +1 more source

Eddy current loss in double-sided cored slotless type permanent magnet linear synchronous generator using analytical method

open access: yesAIP Advances, 2017
This paper describes the eddy current loss analysis of a double-sided cored slotless-type permanent magnet linear synchronous generator using the space harmonic method.
Gang-Hyeon Jang   +4 more
doaj   +1 more source

Analytical Prediction and Analysis of Electromagnetic-Thermal Fields in PM Eddy Current Couplings With Injected Harmonics Into Magnet Shape for Torque Improvement

open access: yesIEEE Access, 2020
To improve the output torque in permanent magnet (PM) eddy current couplings, a new structure based on harmonics injection into the magnet optimization theory is proposed.
Di Zheng, Xifeng Guo
doaj   +1 more source

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