Design study of an AC power system for additional heating facilities in JT-60SA

Shimada, Katsuhiro; Terakado, Tsunehisa; Kurihara, Kenichi

In JT-60SA, the heating power with 41 MW - 100 s is assumed at the additional heating facilities including NBI and RF facilities. The present AC power system, which is composed of the motor generator (H-MG, Capacity: 400 MVA), can not supply the necessary AC power to the additional heating facilities because the necessary AC power is about 130 MW - 100 s considering the efficiency and power factor of the additional heating facilities. Therefore, new AC power system is necessary for the additional heating facilities in JT-60SA. In this report, we propose new AC power system directly powered from the commercial line for the additional heating facilities in JT-60SA. Moreover, this report describes the design study of the reactive power compensator including high harmonic current filters and shunt capacitors to be satisfied with the receiving condition for NAKA Fusion Institute using PSCAD/EMTDC simulation.