A feasibility study on a world-wide-scale superconducting power transmission system

Author

Ishigohka, T.

Author_Institution

Seikei Univ., Tokyo, Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

949

Lastpage

952

Abstract

The author has conceptually designed two types of superconducting DC power cable (SCDCPC) using high temperature superconductors. One is cooled by liquid hydrogen, and the other is cooled by liquid nitrogen. The former has a capacity of 50 GW, and the latter has a capacity of 20 GW, So as to reduce losses as low as possible, the DC system has been selected. The rated voltage for both systems is /spl plusmn/250 kV. Because of the merit of DC operation, these cables generate neither conductor loss nor dielectric loss induced by AC operation, and so have extremely high efficiency. In the case of 10,000 km transmission, Including the refrigeration power, the total loss is lower than 1%. A concept of a world-wide superconducting power transmission system using SCDCPCs is presented.<>

Keywords

HVDC power transmission; high-temperature superconductors; losses; superconducting cables; transmission networks; 10000 km; 20 GW; 250 kV; 50 GW; capacity; conductor loss; dielectric loss; efficiency; high temperature superconductors; liquid hydrogen; liquid nitrogen; losses; refrigeration power; superconducting DC power cable; superconducting power transmission system; AC generators; Dielectric losses; High temperature superconductors; Hydrogen; Nitrogen; Power cables; Power transmission; Superconducting cables; Superconducting transmission lines; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402706

Filename

402706