Results 11 to 20 of about 3,691,643 (300)
Estimation of AC loss in cylindrical superconductor with ripple current [PDF]
, 2012 The loss energy density (AC loss) in cylindrical superconductor with ripple current based on Irie-Yamafuji model in which the magnetic fiel dependence of critical current density is taken into account is theoretically calculated for design of DC ...
キウチ, マサル +8 more
core +4 more sources
Comprehensive Analysis of the AC Copper Loss for High Speed PM Machine With Form-Wound Windings
IEEE 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
Scientific Reports, 2022 Circular planar spiral coils are wildly used for the magnetic coupling system in a high-frequency wireless power transfer system. The loss of the magnetic coupling system usually takes dominance in the whole system. This paper built the calculation model
Qingbin Chen +3 more
doaj +1 more source
IEEE Access, 2021 Superconducting machine designs have historically focused on an isolated, cryogenic rotor and conventional (copper) stator due to unacceptable levels of AC loss in a superconducting stator.
Shuangrong You +5 more
doaj +1 more source
Ac losses in superconducting coils
Electrical Engineering in Japan, 1991 AbstractAC superconducting wire is being developed for such electrical equipment as superconducting transformers and superconducting generators. AC loss reduction is of primary concern in the development of such high‐efficiency equipment. In reducing ac losses, it is necessary to develop assessment methods for ac loss in test samples which have shapes ...
Shirabe Akita +2 more
openaire +2 more sources
Numerical study on AC loss properties of HTS cable consisting of YBCO coated conductor for HTS power devices [PDF]
, 2018 High-current high temperature superconducting (HTS) cables have been developed for use in HTS power devices. This paper presented the structures of HTS cables, including Conductor on Round Core (CORC) cable, Twisted Stacked-tape Conductor (TSTC) cable ...
Yuan, Weijia +7 more
core +2 more sources
Low energy dissipation superconducting flywheel based on structural design
AIP Advances, 2022 Superconducting flywheels have potential application value in aerospace field, and its suspension time is a key factor. Alternating Current (AC) loss associated with rotation is an important parameter that affects the suspension time, so it is very ...
Yanbin Ma +3 more
doaj +1 more source
Simulation of Dynamic Resistance and Total Loss of HTS CORC Cables
IEEE Access, 2023 In some high temperature superconducting (HTS) applications, HTS coated conductors carry DC current under external AC magnetic fields. Dynamic resistance occurs when the amplitude of the magnetic field is greater than the threshold magnetic field of the ...
Yukai Qiao +4 more
doaj +1 more source
The net zero mass loss phenomenon on opening switching contacts with AC loading [PDF]
, 1999 Studies are conducted on silver metal oxide contacts on a purposed built apparatus to investigate the extent of contact erosion under opening (break) operations.
J.W. McBride +5 more
core +1 more source
The Journal of Engineering, 2019 Reducing the power loss and handling short-circuit faults in HVDC systems are crucial for economical and reliable operation of modular multilevel converters (MMC). This paper proposes a loss reduction method for AC voltage-boosted FBSM-MMC by controlling
Muchao Xiang, Jiabing Hu, Zhiyuan He
doaj +1 more source