Development of In-vessel Vertical Coil (IVC) power supply in KSTAR

Author

Jin, Jong-Kook ; Choi, Jae-Hoon ; Lee, Dong-Keun ; Han, Sang-Hee ; Jeon, Young-Mu ; Kim, Yaung-Su ; Kwon, Myeun ; Ahn, Hyun-Sik ; Jang, Gye-Yong ; Yun, Min-Seong ; Seong, Dae-Kyung ; Shin, Hyun-Seok

Author_Institution

KSTAR Res. Center, Nat. Fusion Res. Inst. (NFRI), Daejeon, South Korea

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

The Korea Superconducting Tokamak Advanced Research (KSTAR) device is an advanced superconducting tokamak to establish scientific and technological bases for an attractive fusion reactor [1]. In-vessel Vertical Coil (IVC) power supply has been developed for vertical stability and shape control of KSTAR plasma. IVC power supply in KSTAR is based on a single-phase full-bridge inverter. The output voltage is DC ± 1kV and output current is ±10 kA. IGBT is used as switching power device in IVC power supply and maximal 5 kHz of switching frequency is adopted to meet the requirement of fast control by PCS. This paper describes the configuration and engineering of the IVC power supply system and analyzes both the IVC coil commissioning and the D-shape plasma major performances achieved by experiments.

Keywords

Tokamak devices; fusion reactor instrumentation; power supplies to apparatus; D-shape plasma major performances; IGBT; IVC power supply; KSTAR device; Korea Superconducting Tokamak Advanced Research device; fusion reactor; in vessel vertical coil; shape control; single-phase full-bridge inverter; switching frequency; vertical stability; Bridge circuits; Coils; Distributed Bragg reflectors; Insulated gate bipolar transistors; Plasmas; Reliability; Switches; In-vessel Vertical Coil; Inverter; KSTAR;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering (SOFE), 2011 IEEE/NPSS 24th Symposium on

Conference_Location

Chicago, IL

ISSN

1078-8891

Print_ISBN

978-1-4577-0669-1

Electronic_ISBN

1078-8891

Type

conf

DOI

10.1109/SOFE.2011.6052338

Filename

6052338