Tokamak cooling systems and power conversion system options

DEMO will be a fusion power plant demonstrating the integration into grid architecture of an electric utility grid. The design conversion chain is particular importance, as it must adequately account for specifics nuclear on generation side and ensure compatibility with at all times. One special challenges foreseen pulsed operation, which affects operation entire heat transport chain. This requires time-dependant analysis different concept approaches to proof reliable efficiency obtain licensing. Several architectures Balance Plant were conceived developed during Pre-Concept Design Phase in order suit needs constraints in-vessel systems, regard blanket concepts. At this early stage, emphasis was given achievement robust solutions essential have chiefly feasible flexible modes main operating phases – Pulse, Dwell ramp-up/down adsorb compensate potential fluctuations plasma flat-top. Although some criticalities, requiring further improvements identified, these preliminary assessments showed that investigated cooling system capability restore nominal conditions after any abovementioned cases overall availability could meet top-level requirements. paper describes results studies tokamak coolant Power Conversion System (PCS) options critically highlights aspects require work.