Konrad Risse
(W7-X Operation)
9/8/16, 4:40 PM
E. Magnets and Power Supplies
Oral
The Wendelstein 7-X stellarator (W7-X), one of the largest stellarator fusion experiments, is presently in the first operational phase at the Max Planck Institute for Plasma Physics in Greifswald, Germany. The W7-X shall prove the reactor relevance of the optimized stellarator concept. To confine 30m33 plasma the W7-X machine has a superconducting magnet system with 50 non-planar...
Andreas Werner
(Wendelstein 7-X Operation CoDaC)
9/8/16, 5:00 PM
C. Plasma Engineering and Control
Oral
The Wendelstein 7-X safety control system is one of the main central control entities and ensures personal safety and investment protection. Its proper definition and setup has been a major precondition for the operation permit by the authorities and was inspected by external reviewers several times. The safety control systems has a distributed architecture comprising of the central safety...
Albrecht Herrmann
(MPI für Plasmaphysik)
9/8/16, 5:20 PM
C. Plasma Engineering and Control
Oral
ASDEX Upgrade came into operation in 1991. It was designed as a tokamak with reactor relevant shaping. The coil and control system allows to operate in lower single null (LSN), double null (DN) or upper single null (USN) with up to 1.6 MA plasma current and an initially open divertor configuration. Divertor enhancements were concentrated on the lower divertor that was finally transferred to a...
William Wehner
(Mechanical Engineering & Mechanics)
9/8/16, 5:40 PM
C. Plasma Engineering and Control
Oral
To collect meaningful experimental data, it is necessary to maintain consistent operating conditions in the tokamak plasma across repeated discharges. Presently, the desired plasma formation conditions, such as the shape of the plasma current profile, are achieved in a trial and error fashion, which can be a lengthy, wasteful process. In this work, model-based control techniques including...
