Results 11 to 20 of about 734,487 (348)

Fe(III) Precipitation and Copper Loss from Sulphate-Chloride Solutions at 150 °C: A Statistical Approach

open access: yesMetals, 2020
The purification of hydrometallurgical process solutions by Fe(III) precipitation is a common and large-scale industrial operation. This step is notorious for valuable metal loss occurring with the iron precipitation product, which is usually directed to
Tasawar Javed, Edouard Asselin
doaj   +1 more source

High-Efficiency Drive Method of Adjustable Field IPMSM Utilizing Magnetic Saturation

open access: yesIEEE Access, 2022
This paper describes a high-efficiency drive method of an adjustable field Interior Permanent Magnet Synchronous Motor (IPMSM) utilizing magnetic saturation.
Kiyohiro Iwama, Toshihiko Noguchi
doaj   +1 more source

Comprehensive Analysis of the AC Copper Loss for High Speed PM Machine With Form-Wound Windings

open access: yesIEEE Access, 2022
The skin effect and proximity effect at high frequencies would greatly increase the AC copper loss of high speed permanent magnet machines (HSPMMs), especially for form-wound windings.
Guanghui Du   +5 more
doaj   +1 more source

Electromagnetic-thermal Coupled Analyses and Joint Optimisation of Electrically-excited Flux-switching Linear Machines

open access: yesCES Transactions on Electrical Machines and Systems, 2022
Electrically-excited flux-switching machines are advantageous in simple and reliable structure, good speed control performance, low cost, etc., so they have arouse wide concerns from new energy field.
Hui Wen   +5 more
doaj   +1 more source

Optimization and Experimental Validation of Amorphous Alloy High-Speed Asynchronous Motor for Simultaneous Reduction on Core and Copper Losses

open access: yesIEEE Access, 2023
Amorphous alloy has been proposed to replace silicon steel as the stator core material of high-speed asynchronous motors so as to reduce their core losses. However, it is found that this is at the expense of increasing the copper loss.
Jiahao Zhang   +6 more
doaj   +1 more source

Nanocomposites of metallic copper and spinel ferrite films: Growth and self-assembly of copper particles [PDF]

open access: yes, 2005
Nanocomposites of metallic copper and iron oxides films have been prepared by RF-sputtering of pure CuFeO2 delafossite target. The films are made of copper and spinel ferrite crystallites of less than 10 nm in diameter. The content of metallic copper and
Barnabé, Antoine   +5 more
core   +3 more sources

Electromagnetic Design and Losses Analysis of a High-Speed Permanent Magnet Synchronous Motor with Toroidal Windings for Pulsed Alternator

open access: yesEnergies, 2018
The configuration of conventional high-speed Permanent Magnet Synchronous Motors (PMSMs) is usually long and thin, with overlong axial end winding lengths, which is not suitable for those applications that place severe restrictions on the axial length ...
Yuan Wan   +3 more
doaj   +1 more source

The effect of winding topologies on the performance of flux-switching permanent magnet machine having different number of rotor poles [PDF]

open access: yesArchives of Electrical Engineering, 2018
Comparison of the electromagnetic performance of a flux-switching permanent magnet (PM) machine having two separate stators as well as different winding topologies is investigated in this paper.
Chukwuemeka Chijioke Awah   +1 more
doaj   +1 more source

Analysis of Copper Loss of Permanent Magnet Synchronous Motor With Formed Transposition Winding

open access: yesIEEE Access, 2021
In recent years, the hairpin winding flat wire motor has received more and more attention because of its high power density and high torque, but the problem of increased AC copper loss caused by the increase of its wire diameter has restricted the use of
Yanping Liang   +5 more
doaj   +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

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