Title :
Experimental Study on the Electrodynamic Suspension System With HTSC and PM Halbach Array Magnets
Author :
Cho, Hungje ; Bae, Duck Kweon ; Sung, Ho-Kyung ; Lee, Jongmin
Author_Institution :
Korea Inst. of Machinery & Mater., Daejeon
fDate :
6/1/2008 12:00:00 AM
Abstract :
When a strong on-board magnet is moved relative to a conducting sheet, a circulating eddy current will be induced in the conductor. The eddy current in turn produces a magnetic field, which by Lorentz force law, produces repulsive forces between the two magnetic fields. An experimental study on the electrodynamic suspension system was carried with a 1.5 m diameter rotary type test wheel. Two types of on board magnets are tested. One is a HTSC magnet and the other one is a Halbach-arrayed permanent magnet. The Lorentz forces of the two EDS systems are measured and compared with theoretical and numerical calculations.
Keywords :
eddy currents; electrodynamics; high-temperature superconductors; permanent magnets; superconducting magnets; suspensions; wheels; HTSC magnets; Halbach-arrayed permanent magnet; Lorentz force law; PM Halbach array magnets; board magnets; eddy current; electrodynamic suspension; high temperature superconductors; repulsive forces; rotary-type test wheel; size 1.5 m; Electrodynamic suspension systems; HTSC magnets; Halbach arrayed permanent magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2008.921290
