Tremendous Enhancement of Torque Density in HTS Induction/Synchronous Machine for Transportation Equipments

Author

Nakamura, Taketsune ; Itoh, Yoshitaka ; Yoshikawa, Masaaki ; Nishimura, Tatsuo ; Ogasa, Takuro ; Amemiya, Naoyuki ; Ohashi, Yoshimasa ; Fukui, Satoshi ; Furuse, Mitsuho

Author_Institution

Dept. of Electr. Eng., Kyoto Univ., Kyoto, Japan

Volume

25

Issue

3

fYear

2015

fDate

42156

Firstpage

1

Lastpage

4

Abstract

We succeeded in tremendous enhancement of torque density as well as power density in High Temperature Superconducting Induction/Synchronous Machine (HTS-ISM) for next generation transportation equipments. First, we fabricated and tested the 20 kW-class prototype as the validation of our design concept (1st generation). And then, the 70% reduction of the motor´s volume is challenged with the same power (2nd generation). We successfully realized the tremendous enhancement of the torque density, and further the overload tolerance was also realized at the steady state.

Keywords

asynchronous machines; superconducting machines; synchronous machines; transportation; HTS induction-synchronous machine; high temperature superconducting induction-synchronous machine; power 20 kW; power density; torque density enhancement; transportation equipments; Bismuth compounds; High-temperature superconductors; Rotors; Stator windings; Synchronous motors; Torque; BSCCO; HTS; induction/synchronous machine; torque density; transportation equipments;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2014.2382337

Filename

6987357