Record number :
2370259
Title of article :
Current control method of thyristor converter for PF superconducting coil in KSTAR
Author/Authors :
Choi، نويسنده , , Jae-hoon and Ahn، نويسنده , , Hyun-Sik and Lee، نويسنده , , Dong-keun and Jin، نويسنده , , Jong-kuk and Jang، نويسنده , , Gye-yong and Seong، نويسنده , , Dae-kyung and Yun، نويسنده , , Min-sung and Shin، نويسنده , , Hyun-seok and Kim، نويسنده , , Yaung-Soo and Eom، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
6
From page :
1828
To page :
1833
Abstract :
This paper presents the current control method of thyristor converter which is applied to PF power supply in KSTAR [1]. The thyristor converter for PF superconducting coil is composed of two 6 pulse converters and each converter is connected in parallel using DC reactor to reduce voltage ripple, current rating of converter and harmonic components. For 4 quadrant operation, each 6 pulse converter has six arms of anti-paralleled thyristor device, back-to-back connection [2]. To apply this converter on KSTAR PF coil, stable coil current control is needed. Additionally, PF coil needs smooth current control without dead-time when current polarity changes and it is not easy in back-to-back thyristor converter. For this reason, zero crossing current control using circulating current and test results are introduced in this paper and it was satisfactory.
Keywords :
KSTAR , Zero crossing current control , Thyristor converter , circulating current
Journal title :
Fusion Engineering and Design
Journal title :
Fusion Engineering and Design
Serial Year :
2012
Link To Document :
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