The fast discharge system of ITER superconducting magnets

Author

Song, Inho ; Roshal, Alexander ; Tanchuk, Victor ; Thomsen, Jeff ; Milani, Francesco ; Benfatto, Ivone

Author_Institution

ITER Organ., St. Paul-lez-Durance, France

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

6

Abstract

High DC current interruption system and large energy dissipation system are required for the protection of ITER superconductive coils. The ITER superconducting magnets will store up to 56 GJ of magnetic energy per operation cycle. In case of coil quench and other fault conditions the energy stored in the coils must be discharged quickly and safely within a discharge time constant from 7.5 to 14 second. It can be achieved by Fast Discharge Unit (FDU), which consists of DC circuit breaker and energy dump resistors. The paper will present its peculiarities and challenging issues and the design and simulation results of FDU system.

Keywords

circuit breakers; discharges (electric); superconducting magnets; DC circuit breaker; energy dump resistors; fast discharge system; fast discharge unit; high DC current interruption system; large energy dissipation system; superconducting magnets; superconductive coils; Coils; Discharges; Power supplies; Resistors; Superconducting magnets; Switches; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073779

Filename

6073779