NDLI: Research on Magnetic Shield Effect of AC Superconducting Armature

Content Provider	IEEE Xplore Digital Library
Author	Li Liyi Jiwei Cao Zhengnan Han Qingquan Chen
Copyright Year	2002
Abstract	The superconducting motor with superconducting armature winding has simple cooling and a high running temperature of 66 K-77 K so the motor with a superconducting armature winding and excitation has been researched by many institutes. When the superconducting armature winding was adopted in the superconducting motors, the magnetic field around the coils would influence its performance. Therefore, this paper researches the distribution of the superconducting coils in the stator tooth-slot environment which is composed of ferromagnetic material. Based on the analysis of electromagnetic distribution, a new shield method is presented for decreasing the magnetic field which is around the superconducting coils when an active current flows through the coils. The shield's ferromagnetic material structure parameters are optimized by FEM (finite element method) software to seek the optimization parameters which create a minimum magnetic field. Finally, the experimental result shows the shield method can decrease the magnetic field around the superconducting coils, and the method can decrease the AC loss of the superconducting coils.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	6
Page Count	6
File Size	1542184
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	Superconducting coils Superconducting magnets Magnetic fields Slabs Magnetic flux Magnetic shielding shield method Finite element method (FEM) HTS coil optimization
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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