Characteristics of electromagnetic force of EMS-type maglev vehicle using bulk superconductors

Author

Tsuchiya, Mitsuyoshi ; Ohsaki, Hiroyuki

Author_Institution

Dept. of Electr. Eng., Tokyo Univ., Japan

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3683

Lastpage

3685

Abstract

Because of the many special characteristics of bulk superconductors, they could be used as a flux source instead of electromagnets or permanent magnets in maglev systems. In this paper, we discuss the application of bulk superconductors to the EMS-type maglev vehicle. The configuration of the magnets consists of separated bulk superconductors and electromagnets. An attractive force between the superconducting bulk magnet and an iron rail is generated by the magnetic flux pinned in the bulk superconductors. The electromagnets are controlled to stabilize the required levitation force. Numerical analysis shows that the attractive force in this configuration is large enough to support the weight of the vehicles and that the influence of magnetic hysteresis of the superconductors on the electromagnetic force characteristics is small

Keywords

electromagnetic forces; magnetic hysteresis; magnetic levitation; railways; superconducting magnets; EMS-type maglev vehicle; bulk superconductors; electromagnetic force; flux source; iron rail; levitation force; maglev systems; magnetic hysteresis; Electromagnetic forces; Electromagnets; Iron; Magnetic flux; Magnetic levitation; Permanent magnets; Rails; Superconducting magnets; Superconductivity; Vehicles;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908940

Filename

908940