Development and test results of a double 0.5 MJ coil SMES system

Author

Keilin, V.E. ; Agalakov, V.P. ; Anashkin, O.P. ; Britousov, N.N. ; Dudarev, A.V. ; Krivykh, A.V. ; Kulikov, A.S. ; Lysenko, V.V. ; Miklyaev, S.M. ; Shevchenko, S.A. ; Surin, M.I.

Author_Institution

Kurchatov (I.V.) Inst. of Atomic Energy, Moscow, Russia

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2312

Lastpage

2315

Abstract

The design and test results of a SMES system built for the Korea Electrical Power Company are described. The system consists mainly of two superconducting (SC) coils, two cryostats, a primary power supply and a DC-AC-DC power converter to transfer the stored energy from one coil to another and vice versa. Each of two almost identical coils can store more than 0.5 MJ at about 1.55 kA. Minimum energy transfer time is about 2 s. The conductor is made by cabling of several SC, copper and stainless steel strands around a copper core. At 2 s transfer time mode, the AC losses in each coil are about 500 J. The cryostats are manufactured mainly of thin-walled stainless steel. Their eddy current losses at liquid helium temperatures are lower than AC losses in the coils. After preliminary tests in Moscow, the system was delivered to Republic of Korea and successfully tested at Korea Electrotechnology Research Institute

Keywords

DC-DC power convertors; design engineering; eddy current losses; power supplies to apparatus; superconducting cables; superconducting coils; superconducting magnet energy storage; superconducting magnets; testing; 0.5 MJ; 1.55 kA; 2 s; 500 J; AC losses; DC-AC-DC power converter; cryostats; development; double coil SMES system; eddy current losses; energy transfer time; liquid helium temperatures; primary power supply; superconducting cables; test results; Conductors; Copper; Energy exchange; Manufacturing; Power supplies; Samarium; Steel; Superconducting coils; Superconducting magnetic energy storage; System testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.508629

Filename

508629