A study on the efficiency of low-Tc superconducting power supply considering the series-parallel connections of superconducting circuits

Author

Ahn, Min Cheol ; Yoon, Yong Soo ; Kim, Ho Min ; Han, Tae-Su ; Lee, Sang Geun ; Ko, Tae Kuk

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

804

Lastpage

807

Abstract

This paper is describing an operational characteristics of low-Tc superconducting (LTS) power supplies considering the connections of superconducting sheets (niobium). An LTS power supply has four rotating poles, which produce rotational magnetic flux. This flux penetrates superconducting sheets and causes currents which charge an LTS load. While LTS power supplies have used only parallel-connected LTS sheets up to now, this paper deals with series-connected sheets type power supply. Two power supplies were manufactured in order to verify and analyze the operational characteristics using a 1.81 mH LTS load. The only difference between the two power supplies is hereby the connection method of the superconducting sheets. Experimental results show that the current pumping rate of the series-connected type is higher than that of a parallel-connected type.

Keywords

magnetic flux; power supplies to apparatus; superconducting devices; current pumping rate; low-Tc superconducting power supply; operational characteristics; rotating poles; rotational magnetic flux; series-connected sheets type power supply; series-parallel connections; superconducting circuits; superconducting sheets; Equations; Equivalent circuits; Inductance; Linear approximation; Magnetic flux; Niobium; Power supplies; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018523

Filename

1018523