Integrated plasma state reconstruction, off-normal event handling and control with application to TCV and ASDEX Upgrade

Next-generation tokamaks will require integrated plasma control solutions beyond the present state-of-the art. Such solutions are being actively explored on the TCV and ASDEX Upgrade tokamaks. A summary of recent achievements is provided in this paper. We report on advances in plasma state reconstruction algorithms including improved density profile estimations on ASDEX Upgrade and a first implementation of kinetic equilibrium reconstruction constrained by real-time transport equation solutions on TCV. Recent progress in development of generic plasma supervisory control system on TCV, including a mix of continuous control and off-normal event handling is discussed, together with its application to high-density limit disruption avoidance.The RABBIT code for real-time NBI deposition calculations has been integrated in the ASDEX Upgrade control system and quantities computed by the code have been used for real-time feedback control of the power deposited to the ions.Finally, we report on a first demonstration of model-based shot-to-shot iterative improvement of actuator trajectories,applied to control of the central ion and electron temperature by an appropriate mix of ECH and NBI.