Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2004.07c
- /
- Pages.1778-1780
- /
- 2004
Development of 3.6 MW, 4 ${\mu}s$ , 200 pps Pulse Modulator for a High power magnetron
고출력 마그네트론 구동용 3.6 MW, 4 ${\mu}s$ , 200 pps 펄스모듈레이터 개발
- Son, Y.G. (PAL) ;
- Jang, S.D. (PAL) ;
-
Oh, J.S.
(PAL)
;
-
Cho, M.H.
(POSTECH)
;
-
NamKang, W.
(POSTECH)
;
- Lee, H.K. (POSTECH) ;
- Bae, Y.S. (POSTECH) ;
- Lee, K.T. (Dong-A Tech) ;
- Son, B.H. (Dong-A Tech)
- 손윤규 (포항가속기연구소) ;
- 장성덕 (포항가속기연구소) ;
-
오종석
(포항가속기연구소)
;
-
조무현
(포항공과대학교)
;
-
남궁원
(포항공과대학교)
;
- 이한구 (포항공과대학교) ;
- 배영순 (포항공과대학교) ;
- 이경태 (동아테크) ;
- 손병학 (동아테크)
- Published : 2004.07.14
Abstract
Microwave heating system of KSTAR consists of ECH and LHCD. ECH and LHCD offer the reliability of operation in the beginning of plasma formation and non-inductive current drive for long time steady state operation with maintaining MHD stability, respectively. LHCD demands 5 GHz of frequency and consists of c-band waveguide, 4-port circuitor, dry dummy load, dual directional coupler, E-bend, arc detector. Our system is a lineup type pulse modulator that has 45 kV of output pulse voltage, 90 A of pulse current, 4 us of pulse width. 1:4 step-up pulse transformer, 7 stages of PFN and thyratron tube (E2V, CX1191D) are used in this modulator. The purpose of this paper is to show the modulator design and experimental result.
Keywords