NDLI: AC Transport Current Losses in HTS Coils for Axial Flux Electrical Machines Applications

Content Provider	IEEE Xplore Digital Library
Author	Messina, G. Morici, L. Vetrella, U.B. Celentano, G. Marchetti, M. Sabatino, P. Viola, R.
Copyright Year	2002
Abstract	Axial flux electrical machines (AFEM) with shaped disk structure increases the power-to-weight ratio using HTS materials. The introduction of permanent magnets on rotor disk and of superconducting coils on stator disk, instead of conventional field and armature winding, respectively, allows the development of lighter, more compact, and more performing AFEM. In this paper, we report the electromagnetic properties of an HTS coil in a double pancake configuration measured at LN₂ temperature. Also, simulation studies by means of finite element and constant lumped models are reported. Commercial grade ReBa₂Cu₃O_7-x (Re = Y or rare earths, ReBCO) tape and epoxy resin have been used for coil winding. The combination of experimental and simulation results allow ac losses, in the HTS coils used in an all-superconducting machine design, to be estimated.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	4
Page Count	4
File Size	586446
File Format	PDF
ISSN	10518223
Volume Number	24
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Loss measurement Current measurement Critical current density (superconductivity) Superconducting magnets Yttrium barium copper oxide YBCO coated conductor AC losses AmSC American Superconductor axial flux electrical machine magnetic and electrical loading
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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