NDLI: <formula formulatype=inline><tex>${rm I}_{rm c}$</tex></formula> and AC Loss of 2G YBCO Tape Measurement for Designing and Fabrication of an HTS Motor

Content Provider	IEEE Xplore Digital Library
Author	Pei, R. Velichko, A. Majoros, M. Jiang, Y. Viznichenko, R. Hong, Z. Marchant, R. Campbell, A.M. Coombs, T.A.
Copyright Year	2002
Abstract	This paper presents a new synchronous motor whose stator uses 2 High Temperature Superconducting (HTS) pancake-coils wound from 2G HTS tapes and 4 conventional copper coils, while the rotor contains 75 bulk HTS elements. All superconducting materials are cooled by liquid nitrogen (77 K). The HTS and copper armature includes 3 phase circuit and is mounted in the slots of a nonmagnetic and insulating material. Each phase winding, fabricated in the form of a pancake-coil, is distributed in slots of 60-degree intervals. YBCO melt-textured pucks were incorporated into the rotor and the reluctance was tested. In addition, a unique cooling system using a copper conductor is designed, which is similar to that of a superconducting flywheel. Finally, we present and analyse results on measuring DC critical current and self-field AC loss in HTS tape supplied by American Superconductor. The measurement systems are described. The results on the AC loss measurement of YBCO samples are presented and analyzed within the framework of the critical state model.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1236
Ending Page	1239
Page Count	4
File Size	585953
File Format	PDF
ISSN	10518223
Volume Number	18
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High temperature superconductors Superconducting films Superconducting coils Superconducting materials Conducting materials Yttrium barium copper oxide Loss measurement Synchronous motors Stators Wounds YBCO bulk Critical current high temperature superconductor self-field AC loss synchronous motor
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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