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

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1167

Lastpage

1170

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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2080255

Filename

5613212