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논문 기본 정보

자료유형
학술저널
저자정보
Hahn, Sang-Hee (National Fusion Research Institute [NFRI]) Kim, K.H. (National Fusion Research Institute [NFRI]) Choi, J.H. (National Fusion Research Institute [NFRI]) Ahn, H.S. (POSCON Cooperation R&D Center, 101 Korea Tech. Complex Bldg., Korea Univ.) Lee, D.K. (National Fusion Research Institute [NFRI]) Park, K.R. (National Fusion Research Institute [NFRI]) Eidietis, N.W. (General Atomics) Leuer, J.A. (General Atomics) Walker, M.L. (General Atomics) Yang, H.L. (National Fusion Research Institute [NFRI]) Kim, W.C. (National Fusion Research Institute [NFRI]) Oh, Y.K. (National Fusion Research Institute [NFRI])
저널정보
한국초전도저온학회 한국초전도·저온공학회논문지 한국초전도·저온공학회논문지 제10권 제4호
발행연도
2008.1
수록면
23 - 28 (6page)

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As a part of the plasma control system (PCS) for the first plasma campaign of KSTAR, seven sets of fast feedback control loop for the superconducting poloidal field magnet power supply (PF MPS) have been implemented. A special real-time digital communication interface has been developed for the simultaneous exchanges of the current/voltage data from the 7 sets of 12-thyristor power supplies in a 200 microsecond control cycle. Preliminary power supply tests have been performed before actual cooldown of the device. A $29mH/50m{\Omega}$ solenoid dummy has been fabricated for a series of single power supply tests. Connectivity and response speed of the plasma control system have been verified. By changing hardware cabling, this load was also used to estimate mutual inductance coupling effects of two geometrically adjacent solenoid coils on each power supply. After the cooldown was complete, each pair of the up/down symmetric PF coils has been serially connected and tested as part of the device commissioning process. Bipolar operation and longer pulse attempts have been investigated. The responses of the coils and power supplies corresponding to the plasma magnetic controls in plasma discharges are also analyzed for the future upgrades.

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