Numerical Study of Optimization Design of High Temperature Superconducting Field Winding in 20 MW Synchronous Motor for Ship Propulsion

Author

Fukui, S. ; Kawai, T. ; Takahashi, M. ; Ogawa, J. ; Oka, Tetsuo ; Sato, Takao ; Tsukamoto, O.

Author_Institution

Grad. Sch. of Sci. & Technol., Niigata Univ., Niigata, Japan

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

5200504

Lastpage

5200504

Abstract

This paper presents the optimization study of the field winding structure of the 20 MW-class HTS motor for the electric ship propulsion based on the minimization of the flux flow loss. The examples of the optimized shape of the HTS field pole coils obtained by the numerical analysis are presented. By optimizing the cross section of the field pole coil, it is found that the magnetic field perpendicular to the tape surface in the optimized shape coil significantly decreases compared with that in the rectangular shape base coil. As the results of the reduction of the perpendicular magnetic field, it is shown that the flux flow loss remarkably decreases. It is also pointed that the necessary length of the HTS tape for the optimized shape coil increases.

Keywords

high-temperature superconductors; synchronous motors; windings; HTS field pole coils; HTS motor; HTS tape; electric ship propulsion; field winding structure; flux flow loss; high temperature superconducting field winding; magnetic field perpendicular; numerical analysis; optimization design; optimized shape coil; perpendicular magnetic field; power 20 MW; rectangular shape base coil; synchronous motor; tape surface; Coils; High temperature superconductors; Magnetic fields; Optimization; Shape; Synchronous motors; Windings; Electric propulsion; HTS field winding; HTS synchronous motor; flux flow loss; optimization design;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2183331

Filename

6126018