Multilevel NPC Convert for CFETR Tokamak Power Supply and Control

The CFETR (China Fusion Engineering Test Reactor) is the largest TOKAMAK in china. The power supply converter control is the challenging task in the TOKAMAK system. Multilevel converter topology is promising for medium voltage high power application. The multilevel NPC converter control is complicated, especially in fusion application. The complex mathematical modeling is the immense issues at the complex converter control. In this paper the novel topology and control strategy is proposed. The new Fuzzy Controller (FC) strategy is developed for CFETR. The feasibility analysis using multilevel NPC converter is proposed. The SVPWM strategy shows the ability of this control method to balance the DC bus voltages. The MATLAB/Simulink software is used to validate the proposed model.