Calculation of core loss and copper loss in amorphous/nanocrystalline core-based high-frequency transformer [PDF]
AIP Advances, 2016 Amorphous and nanocrystalline alloys are now widely used for the cores of high-frequency transformers, and Litz-wire is commonly used as the windings, while it is difficult to calculate the resistance accurately.
Xiaojing Liu +5 more
doaj +2 more sources
Applied Sciences, 2023 This paper introduces a direct predictive torque control (DPTC) method to minimize the torque ripple and copper loss of the switched reluctance motor (SRM). Generally, there is a problem with torque ripple during the SRM’s commutation.
Linhao Sheng +5 more
doaj +2 more sources
Development of mineralogy-based approaches to study the loss of copper minerals into tailings of scavenger flotation circuit – Part I [PDF]
International Journal of Mining and Geo-EngineeringLoss of copper minerals to tailings of the rougher and scavenger circuits is one of the challenges in copper concentration plants, which reduces the efficiency of the circuit.
Ataallah Bahrami +4 more
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A new dual stator linear permanent-magnet vernier machine with reduced copper loss
AIP Advances, 2017 In this paper, a new dual stator linear permanent-magnet (PM) vernier (LPMV) machine with toroidal winding is proposed and analyzed. The proposed machine enjoys the advantages of less copper usage and copper loss without sacrificing the thrust force ...
Fangfang Bian, Wenxiang Zhao
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IEEE 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
Energies, 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
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The effect of winding topologies on the performance of flux-switching permanent magnet machine having different number of rotor poles [PDF]
Archives 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
Semi-Empirical Model for Precise Analysis of Copper Losses in High-Frequency Transformers
IEEE Access, 2018 Accurately estimating the copper losses is essential for the elaborate design of high-frequency (HF) transformers used in high-power isolated dc-dc converters.
Bin Chen, Lin Li
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Analysis of Copper Loss of Permanent Magnet Synchronous Motor With Formed Transposition Winding
IEEE 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
Effects of copper, zinc and selenium status on performance and health in commercial dairy and beef herds: retrospective study [PDF]
, 2006 A retrospective study using analysis of plasma copper and zinc, and erythrocyte glutathione peroxidase from 2 080 dairy and beef cow herds was conducted to evaluate the relationship between trace-element status and production, reproduction and health in ...
Salat, O. +5 more
core +1 more source