Title :
Simulation of a Tubular Linear Magnetic Gear Using HTS Bulks for Field Modulation
Author :
Li, Wenlong ; Chau, K.T. ; Li, Jiangui
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
fDate :
6/1/2011 12:00:00 AM
Abstract :
A tubular linear magnetic gear is proposed, which newly utilizes high temperature superconductor (HTS) bulks for its field modulation. Compared to the conventional one, the proposed topology can significantly reduce the leakage flux, hence improving its force transmission capacity. By using the magnetic circuit modeling, the analytical formulae of air-gap flux density and thrust force are firstly derived. Then, the finite element method (FEM) is employed to validate the performance of the proposed linear magnetic gear.
Keywords :
air gaps; finite element analysis; gears; high-temperature superconductors; linear machines; magnetic circuits; magnetic flux; magnetic leakage; air-gap flux density; field modulation; finite element method; force transmission capacity; high temperature superconductor bulks; leakage flux; magnetic circuit; thrust force; tubular linear magnetic gear; Air gaps; Force; Gears; High temperature superconductors; Magnetic circuits; Magnetic separation; Superconducting magnets; FEM; HTS bulk; field modulation; linear magnetic gear; magnetic circuit;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2080255
