TY - JOUR
T1 - Design and Implementation of DC Pulsed Power Supply Employing Self-Excited Induction Generators and Flywheels for Toroidal Field Coils of a Tokamak Device, PLATO
AU - Murayama, Masamichi
AU - Kato, Shuhei
AU - Fujisawa, Akihide
AU - Matsuoka, Keisuke
AU - Tsutsui, Hiroaki
AU - Tsuji-Iio, Shunji
AU - Shimada, Ryuichi
N1 - Funding Information:
Manuscript received September 25, 2019; accepted March 6, 2020. Date of publication March 19, 2020; date of current version May 15, 2020. This work was supported by JSPS KAKENHI under Grant 17H06089. (Corresponding author: Masamichi Murayama.) Masamichi Murayama, Hiroaki Tsutsui, Shunji Tsuji-Iio, and Ryuichi Shi-mada are with the Laboratory for Advanced Nuclear Energy, Tokyo Institute of Technology, Meguro-ku 152-8550, Japan (e-mail: murayama.masamichi@ torus.nr.titech.ac.jp). Shuhei Kato is with the College of Industrial Technology, Nihon University, Chiyoda 101-0061, Japan. Akihide Fujisawa is with RIAM and RCPT, Kyushu University, Fukuoka 812-8581, Japan. Keisuke Matsuoka is with RCPT, Kyushu University, Fukuoka 812-8581, Japan. Color versions of one or more of the figures in this article are available online at https://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2020.2981075
PY - 2020/6
Y1 - 2020/6
N2 - Tokamak devices with non-superconducting coils must be equipped with pulsed power supplies employing energy storage system when the devices cannot receive electricity from power grids directly. Flywheel energy storage system (FESS) for the coil power supplies have been used only in large or middle-sized tokamak devices since they employed synchronous motor generators (SMGs), which have difficulty in downsizing and maintenance. In our previous research, FESS with induction motor generators (IMGs) utilizing self-excited phenomena was developed. In this paper, using two novel concepts of multiple IMGs and installing a multistage converter, both of design flexibility and coil current ripple reductions are realized. As an experimental result, a peak load power of 778 kW and an electric energy supply of 408 kJ to the dummy coil were achieved using a toroidal field coil power supply (TFCPS) of a tokamak device, PLATO.
AB - Tokamak devices with non-superconducting coils must be equipped with pulsed power supplies employing energy storage system when the devices cannot receive electricity from power grids directly. Flywheel energy storage system (FESS) for the coil power supplies have been used only in large or middle-sized tokamak devices since they employed synchronous motor generators (SMGs), which have difficulty in downsizing and maintenance. In our previous research, FESS with induction motor generators (IMGs) utilizing self-excited phenomena was developed. In this paper, using two novel concepts of multiple IMGs and installing a multistage converter, both of design flexibility and coil current ripple reductions are realized. As an experimental result, a peak load power of 778 kW and an electric energy supply of 408 kJ to the dummy coil were achieved using a toroidal field coil power supply (TFCPS) of a tokamak device, PLATO.
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U2 - 10.1109/TASC.2020.2981075
DO - 10.1109/TASC.2020.2981075
M3 - Article
AN - SCOPUS:85085554340
VL - 30
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 4
M1 - 9042294
ER -