Final Design of SiC-based Power Supply system for Resistive-Wall-Mode control in JT-60SA

Efficient control of Resistive-Wall-Modes (RWM) is mandatory in JT-60SA, the satellite tokamak under construction in Naka (Japan), since one of its main objectives is to reach steady-state high-beta plasmas. The RWM control system is based on a set of 18 in-vessel sector coils, placed on the plasma side of a conductive wall and independently fed by a dedicated fast power supply system (RWM-PS). This is the first PS system for fast control of plasma instabilities in fusion experiments adopting SiC semiconductors. The paper will give an overview of the whole final design with particular emphasis on the newest features and on the interface issues for an efficient integration with the JT-60SA power and control systems.
29th Symposium on Fusion Technology (SOFT2016)