Nuclear Engineering and Technology

  • 제38권8호
  • /
  • Pages.785-792
  • /
  • 2006
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  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
권호 표지

DESIGN AND TEST RESULTS ON A 45-KV PULSED POWER MODULATOR FOR A 1.5-MW MAGNETRON APPLICATION OF KSTAR LHCD

  • Jang, Sung-Duck (Division of Engineering, Pohang Accelerator Laboratory, Pohang University of Science and Technology) ;
  • Son, Yoon-Gyu (Division of Engineering, Pohang Accelerator Laboratory, Pohang University of Science and Technology) ;
  • Oh, Jong-Seok (Division of Engineering, Pohang Accelerator Laboratory, Pohang University of Science and Technology) ;
  • Bae, Young-Soon (National Fusion Research Center) ;
  • Cho, Moo-Hyun (Division of Engineering, Pohang Accelerator Laboratory, Pohang University of Science and Technology) ;
  • NamKung, Won (Division of Engineering, Pohang Accelerator Laboratory, Pohang University of Science and Technology)
  • 발행 : 2006.12.01
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초록

The microwave heating system of KSTAR consists of ECH and LHCD. ECH and LHCD offer the benefits ofa reliable operation at the start of plasma formation and a non-inductive current drive durable steady state operation, respectively. LHCD uses a C-band microwave system with a frequency of 5 GHz. A pulsed power modulator with a power of 3.6 MW, $4{\mu}S$, 200 pps is required to drive the high-powered magnetron. The development of a pulse modulator with 1:4 pulse transformers is the focus of the research in this study. The peak power handling capability is 3.6 MW (45 kV, 90 A at load side with a pulse width of $4{\mu}S$). This paper describes the system overview and test results of the pulsed modulator. In particular, a simulated waveform is compared with the tested waveform.

키워드

참고문헌

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