Status of the KSTAR PF6 and PF7 coil development

Author

Park, K. ; Chung, W. ; Baek, S. ; Lim, B. ; Lee, S.J. ; Park, H. ; Chu, Y. ; Lee, S. ; Kim, K.P. ; Joo, J. ; Lee, K. ; Lee, D. ; Ahn, S. ; Oh, Y.K. ; Kim, K. ; Bak, J.S. ; Lee, G.S.

Author_Institution

Nat. Fusion R&D Center, Korea Basic Sci. Inst., Daejeon, South Korea

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1375

Lastpage

1378

Abstract

The KSTAR superconducting magnet system consists of 16 TF (Toroidal Field) and 14 PF (Poloidal Field) coils. Both of the TF and PF coil systems use internally-cooled Cable-In-Conduit Conductors (CICC). The PF coil system, which consists of 8 coils in the CS (Central Solenoid) coil system and 6 outer PF coils, provides 17 V-s and sustains the plasma current of 2 MA for 20 seconds inductively. PF 1-5 coils use Nb₃Sn CICC in an Incoloy 908 conduit and PF 6-7 coils use NbTi CICC in a modified stainless steel 316LN(316LN+). The fabrication of PF7L/U & PF6L/U coils is completed at present. The engineering issues and fabrication process, which are related with the KSTAR PF 6-7 coil development, are presented and discussed in this paper. TF and PF coils are in the fabrication stage for KSTAR completion in the year 2006.

Keywords

electric conduits; fusion reactor design; niobium alloys; plasma toroidal confinement; stainless steel; superconducting cables; superconducting coils; superconducting magnets; tin alloys; titanium alloys; 2 MA; 20 s; 316LN; Incoloy 908 conduit; KSTAR PF 6-7 coil development; Nb₃Sn; NbTi; cable-in-conduit conductors; central solenoid coil; engineering issues; fabrication process; modified stainless steel; poloidal field coils; superconducting magnet; toroidal field coils; Conductors; Fabrication; Niobium compounds; Plasmas; Solenoids; Superconducting cables; Superconducting coils; Superconducting magnets; Tin; Titanium compounds; KSTAR; PF coil; superconducting magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849094

Filename

1439898