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Influence of Eddy Current Loss on Electromagnetic Field and Temperature Field of High-Speed Permanent Magnet Generator With the Toroidal Windings

open access: yesIEEE Access, 2022
The toroidal windings can shorten the axial length of the machine, so it is widely used in high-speed permanent magnet machine. However, under high-frequency operation, the magnetic flux leakage generated by the toroidal windings can cause a lot of eddy ...
Hongbo Qiu   +3 more
doaj   +2 more sources

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

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   +2 more sources

Eddy current loss modelling for torque‐motors [PDF]

open access: yesIET Power Electronics, 2022
A torque motor is a key component that directly influences the dynamic performance of two‐dimensional (2D) cartridge servo valves. Considering the effects of eddy current, a magnetic circuit model of a torque motor is proposed, and the eddy current ...
Zhiwei Li   +4 more
doaj   +2 more sources

Core loss analysis of soft magnetic composites considering the inter-particle eddy current loss

open access: yesAIP Advances, 2021
Soft magnetic composite (SMC) is composed of ferromagnetic particles surrounded by electrical insulation layer. During the manufacturing process, the electric insulation layer may be destroyed and thus the eddy current will be induced, which makes it ...
Yiming Yang   +4 more
doaj   +2 more sources

Rotor Eddy-Current Loss in Permanent Magnet Brushless Machines [PDF]

open access: yesIEEE Transactions on Magnetics, 2004
This paper presents an analysis of the rotor eddy-current loss in modular and conventional topologies of permanent magnet brushless machine. The loss is evaluated both analytically and by time-stepped finite-element analysis, and it is shown that it can be significant in both machine topologies.
Toda, H.   +4 more
openaire   +4 more sources

A Method to Reduce Eddy Current Loss of Underwater Wireless Power Transmission by Current Control

open access: yesApplied Sciences, 2022
In recent years, wireless power transmission (WPT) technology based on magnetic resonance has been extensively studied. However, in contrast to that in the air, wireless power transmission in seawater medium will be accompanied by inevitable energy loss,
Jiale Wang, Baowei Song, Yushan Wang
doaj   +1 more source

Eddy Current Loss Reduction in Axial-Flux Motors Using 3D Printing

open access: yesEnergies, 2023
As more electrification and emission-free transportation trends receive more attention, electrical systems applied in the aircraft and automotive industries are changing from fossil fuel and hydraulic systems to electric AC machine drive systems.
Hyun-Jo Pyo   +4 more
doaj   +1 more source

The eddy current loss segmentation model of permanent magnet for temperature analysis in high‐speed permanent magnet motor

open access: yesIET Power Electronics, 2021
The rotor eddy current loss of high‐speed permanent magnet motor has an important influence on the temperature distribution of permanent magnet. In traditional method, the unbalanced distribution of eddy current in permanent magnet is ignored, and the ...
Meiwei Zhang   +3 more
doaj   +1 more source

Effect of optimal torque control on rotor loss of fault-tolerant permanent-magnet brushless machines [PDF]

open access: yes, 2002
A faulted phase in a fault-tolerant permanent-magnet brushless machine can result in significant torque ripple. However, this can be minimized by using an appropriate optimal torque control strategy.
Atallah, K.   +3 more
core   +1 more source

Coupling currents in Rutherford cables under time varying conditions [PDF]

open access: yes, 1992
A network model is presented to simulate fully transposed Rutherford cables under time varying conditions. The intrinsic properties of the cable and the external applied conditions can be changed spatially.
ten Kate, Herman H.J.   +2 more
core   +7 more sources

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