Plasma and Fusion Research

Volume 15, 2405079 (2020)

Regular Articles

Design of Power Supply for Magnet Systems of Thailand Tokamak-1
Center for Advanced Nuclear Technology, Thailand Institute of Nuclear Technology, Thailand
Electrical Engineering Department, King Mongut's University of Technology Thonburi, Thailand
(Received 28 November 2019 / Accepted 1 September 2020 / Published 4 November 2020)


Thailand Tokamak-1 is a small size tokamak, formerly known as HT-6M and belong to Institute of Plasma Physics, Chinese Academy of Science (ASIPP, China). The HT-6M was donated to Thailand Institute of Nuclear Technology (TINT, Thailand) and will undergo a reconstruction in order to re-commission again. For the reconstruction of power supply for magnet systems, three circuits have been designed based on capacitor discharge for the toroidal field magnet coil, the heating field magnet coils, and the vertical field magnet coils. With a simulation of new circuit design, the TT-1 will have toroidal magnet field about 1.5 T for a flattop duration of 100 ms with Ohmic heating and vertical magnetic field of the same duration.


power supply, Thailand Tokamak-1, tokamak, circuit design, magnet coil

DOI: 10.1585/pfr.15.2405079


  • [1] HT-6M Team, Fusion Technol. 9, (3), 476 (1986).
  • [2] Zeng Lei et al., Chinese Phys. Lett. 10, 482 (1993).
  • [3] Gao Xiang et al., Chinese Phys. Lett. 11, 161 (1994).
  • [4] Wang Wen-Hao et al., Chinese Phys. Lett. 18, 396 (2001).
  • [5] Mao Jian-shan et al., Plasma Sci. Technol. 5, 1641 (2003).
  • [6] Yu Yang et al., Nucl. Fusion 39, 1871 (1999).