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AC losses in superconducting solenoids
IEEE Transactions on Appiled Superconductivity, 2002This paper presents an analytical model to determine AC losses in monolayer and multilayer superconducting solenoids. The case of a transformer with several coils is also presented. This model is based on an infinite cylindrical geometry and the Bean model.
E. Vinot +3 more
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AC Loss Effect of High-Order Harmonic Currents in a Single-Phase 6.5 MVA HTS Traction Transformer
IEEE transactions on applied superconductivity, 2019Traction transformer is one of the critical electrical devices in high-speed trains. To increase transformer efficiency up to 99% and reduce weight and fire risks, we are currently building a 6.5 MVA superconducting traction transformer. Assuming 15 as a
Wen-Juan Song +4 more
semanticscholar +1 more source
Numerical AC Loss Analysis in HTS Stack Carrying Nonsinusoidal Transport Current
IEEE transactions on applied superconductivity, 2019Bifilar coil structure is promising for reducing ac loss in resistive-type superconducting fault current limiters (FCLs). However, the electric power networks could be contaminated with harmonic components due to nonlinear loads and switch converters. We
Wen-Juan Song, Jin Fang, Zhe-Nan Jiang
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Superconductors Science and Technology, 2019
It is well known that mechanical deformations have a strong impact on the critical current ( I c ) of Bi-2223/Ag multi-filamentary high-temperature superconducting (HTS) tapes, and a remarkable I c degradation is induced, which results in a significant ...
Pei-Feng Gao, Xing-Zhe Wang, You-He Zhou
semanticscholar +1 more source
It is well known that mechanical deformations have a strong impact on the critical current ( I c ) of Bi-2223/Ag multi-filamentary high-temperature superconducting (HTS) tapes, and a remarkable I c degradation is induced, which results in a significant ...
Pei-Feng Gao, Xing-Zhe Wang, You-He Zhou
semanticscholar +1 more source
AC losses of transposed superconductors
IEEE Transactions on Magnetics, 1975Eastham and Rhodes published results of loss measurements on transposed superconducting NbTi cables and concluded basing on an extrapolation to very large numbers of wires that transposed superconductors could be used favourably in cables for power transmission. There are some reasons to question the correctness of their extrapolation.
D. Eckert, G. Enderlein, F. Lange
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Additive Manufacturing of Shaped Profile Windings for Minimal AC Loss in Electrical Machines
European Conference on Cognitive Ergonomics, 2018Concentrated wound, open slot, permanent magnet electrical machines are an attractive topology for automotive and aerospace applications as they exhibit compact end-windings, resulting in high power-density, facilitate fault tolerant operation through ...
N. Simpson, Phil H. Mellor
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The Influence of Flux Diverter Structures on the AC Loss of HTS Transformer Windings
IEEE transactions on applied superconductivity, 2019Compared to conventional transformers, high temperature superconducting (HTS) transformers have higher efficiency and fewer hazards, whose main loss comes from the ac loss of high temperature superconducting windings carrying ac current.
Shuang Wu +5 more
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Losses in AC Superconducting Coils
1989AC superconducting wires are being developed so as to be applied to electrical machineries. The main concerns in developing the AC superconducting wires are AC losses. In order to assess AC losses in the form of winding, we made two AC superconducting coils having different rated capacities, 500kVA and 20kVA.
H. Kasahara +3 more
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Cryogenics (Guildford), 2019
AC losses occur when high temperature superconducting (HTS) cables are connected by alternating current placed in alternating background magnetic field.
Wei Chen +7 more
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AC losses occur when high temperature superconducting (HTS) cables are connected by alternating current placed in alternating background magnetic field.
Wei Chen +7 more
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IEEE transactions on industrial electronics (1982. Print), 2023
As the torque density of traction motors for electric vehicles (EVs) increases, winding technology with a large conductor area, such as hairpin winding, is widely used.
Soo-Hwan Park +4 more
semanticscholar +1 more source
As the torque density of traction motors for electric vehicles (EVs) increases, winding technology with a large conductor area, such as hairpin winding, is widely used.
Soo-Hwan Park +4 more
semanticscholar +1 more source