Preliminary plasma operation control design and optimization for CFEDR

The China Fusion Engineering Demo Reactor (CFEDR) is the next-generation superconducting device in China’s roadmap for fusion energy, which is envisioned to provide 1.5–3 GW fusion power. To ensure that the plasma control system can meet the operational requirements of the device and clarify the goals of further engineering design, a preliminary plasma operation control scheme has been provided in this work. The preliminary operation control design phase includes plasma initiation, ramp-up to flattop scenario design and simulation, and basic plasma control including vertical instability control and kinetic control. The METIS code simulates the discharge to meet the CFEDR conventional H mode target scenario with electron cyclotron and ion cyclotron auxiliary power. Vertical instability control evaluation and design provide references for internal coils and component design. Kinetic profile control design proposes requirements for related diagnostics and auxiliary heating and fueling systems. This work establishes the preliminary reference for CFEDR’s further physics and engineering design.