Hannover 2020 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 16: Poster Session 3
P 16.13: Poster
Mittwoch, 11. März 2020, 16:30–18:30, Empore Lichthof
Supercapacitors-Based Power Supply for ASDEX Upgrade Tokamak — •Antonio Magnanimo1, Markus Teschke1, Gerd Griepentrog2, and ASDEX Upgrade Team1 — 1Max-Planck-Institut für Plasmaphysik, 85748 Garching Bei München, Germany — 2Technische Universität Darmstadt, 64283 Darmstadt, Germany
ASDEX Upgrade (AUG) electrical power is provided by three Flywheel Generators (FG) that are charged up before the start of a plasma pulse with up to 15 MW for several minutes. The energy stored is then used to satisfy the high power needs during a plasma pulse of up to 450 MW. The biggest FG (EZ2) in case of a major fault could not be replaced by any other FG of such size, so an alternative power supply is needed. Supercapacitors are well known for their very high specific power, due to their internal structure. Combining this technology with a proper power converter topology such as the Modular Multilevel Converter (MMC), it would be possible to feed the coils of future Tokamaks with higher performances and reliability. The MMC topology, indeed, allows a discrete-leveled output voltage and, thanks to its high cells number, it can operate continuously even in case of fault of some cells, while a FG could not. In this poster the concept of a Supercapacitors-based power supply for Toroidal Field Coils of AUG is presented, highlighting the main advantages and challenges that this project requires. Furthermore, a charger concept able to optimize the available time between consecutive shots and an overview of the present experimental setup are given, showing some of the components to be tested for the first small-scale prototype.