Premium
Levitation and guidance characteristics of permanent magnet–HTSC hybrid magnetic conveyance system
Author(s) -
Ohashi Shunsuke,
Dodo Daiki
Publication year - 2008
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20631
Subject(s) - levitation , magnet , magnetic levitation , electrodynamic suspension , condensed matter physics , spin stabilized magnetic levitation , materials science , physics , magnetic field , electrical engineering , engineering , magnetic energy , magnetization , quantum mechanics
A hybrid magnetically levitated transportation system has been developed. The magnetic rail is set on the ground, and a carrier with permanent magnets and high‐Tc superconductors (HTSC) levitates on the rail. In this system, the pinning force of the HTSC and the repulsive force of permanent magnet are combined. The repulsive force of the permanent magnet is introduced to support the weight. The pinning force is used to support the weight of the carrier body and to achieve lateral stability of the carrier. To decrease the influence of weight on the levitation gap of the carrier, the weight stage is fixed to the carrier body by linear sliders, and moves freely in the vertical direction. As a result, there is little influence of the carrier body on the levitation gap. The basic levitation and guidance characteristics of the system are presented. The repulsive force generates a very large levitation force. It also generates an unstable lateral force. Weight added to the weight stage has some influence on lateral stability. Although lateral position recovery force due to the pinning effect decreases at heavier weights, the carrier produces enough force to maintain lateral stability. © 2008 Wiley Periodicals, Inc. Electr Eng Jpn, 163(1): 73–79, 2008; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20631