Results 11 to 20 of about 2,262,511 (306)
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
Analysis of AC loss in superconducting power devices calculated from short sample data [PDF]
, 2003 A method to calculate the AC loss of superconducting power devices from the measured AC loss of a short sample is developed. In coils and cables the magnetic field varies spatially. The position dependent field vector is calculated assuming a homogeneous
Haken, B. ten +2 more
core +3 more sources
Study of the Effect of Transport Current and Combined Transverse and Longitudinal Fields on the AC Loss in NET Prototype Conductors [PDF]
, 1993 AC losses in cables carrying DC as well as AC transport currents at different DC background fields up to 2T have been measured on three types of Nb3Sn subcables in a new test facility.
Kate, H.H.J. ten, Nijhuis, A.
core +3 more sources
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
Magnetisation and transport current loss of a BSCCO/Ag tape in an external AC magnetic field carrying an AC transport current [PDF]
, 1999 In practical applications, BSCCO/Ag tapes are exposed to external AC magnetic field and fed with an AC transport current. The total AC loss can be separated in two contributions: first, the transport current loss influenced by an external AC magnetic ...
Haken, B. ten +3 more
core +3 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
An engineering formula to describe the AC loss of BSCCO/Ag tape [PDF]
, 2001 An engineering function to describe the AC loss of BSCCO/Ag tape conductors is developed. For a wide range of transport currents and magnetic fields (with different orientation) the loss is described with an uncertainty of 10%.
Haken, B. ten +3 more
core +7 more sources