Long-pulse power-supply system for EAST neutral-beam injectors

Zhimin LIU (刘智民); Caichao JIANG (蒋才超); Junjun PAN (潘军军); Sheng LIU (刘胜); Yongjian XU (许永建); Shiyong CHEN (陈世勇); Chundong HU (胡纯栋); NBI Team

doi:10.1088/2058-6272/aa57f2

Plasma Science and Technology > 2017 > 19(5): 55602-055602. > DOI: 10.1088/2058-6272/aa57f2

Zhimin LIU (刘智民), Caichao JIANG (蒋才超), Junjun PAN (潘军军), Sheng LIU (刘胜), Yongjian XU (许永建), Shiyong CHEN (陈世勇), Chundong HU (胡纯栋), NBI Team. Long-pulse power-supply system for EAST neutral-beam injectors[J]. Plasma Science and Technology, 2017, 19(5): 55602-055602. DOI: 10.1088/2058-6272/aa57f2

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Long-pulse power-supply system for EAST neutral-beam injectors

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China

Funds: This work has been supported by the National Magnetic Confinement Fusion Science Program of China (No. 2013GB101003) and National Natural Science Foundation of China (No. 11505225) and Foundation of ASIPP (No. DSJJ 15-GC03).

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Received Date: October 08, 2016

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Abstract

Abstract

The long-pulse power-supply system equipped for the 4 MW beam-power ion source is comprised of three units at ASIPP (Institute of Plasma Physics, Chinese Academy of Sciences): one for the neutral-beam test stand and two for the EAST neutral-beam injectors (NBI-1 and NBI-2, respectively).Each power supply system consists of two low voltage and high current DC power supplies for plasma generation of the ion source, and two high voltage and high current DC power supplies for the accelerator grid system. The operation range of the NB power supply is about 80 percent of the design value, which is the safe and stable operation range. At the neutral-beam test stand, a hydrogen ion beam with abeam pulse of 150 s, beam power of 1.5 MW and beam energy of 50 keV was achieved during the long-pulse testing experiments. The result shows that the power-supply system meets the requirements of the EAST-NBIs fully and lays a basis for achieving plasma heating.
- EAST,
- neutral-beam injector,
- power supply,
- long pulse

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References (14)

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