Plasma q -profile control in tokamaks using a damping assignment passivity-based approach

Ngoc Minh Trang Vu (1) , Laurent Lefevre (1) , Rémy Nouailletas (2) , Federico Felici (3)

1 LCIS - Laboratoire de Conception et d'Intégration des Systèmes
2 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique
3 TU/e - Eindhoven University of Technology [Eindhoven]

The IDA-PBC based on PCH model for tokamak q-profile is investigated. Two scenarios are carried out. The first one is the resistive diffusion model for the magnetic poloidal flux. The second one is extended with the thermal diffusion. A feedforward control is used to ensure the compatibility with the actuator physical ability. An IDA-PBC feedback is proposed to improve the system stabilization and convergence speed. The controllers are validated in the simulation using RAPTOR code and tested in TCV, the result is analyzed and the followed discussion proposed the required improvement for the next experiments.

Keywords: Tokamak plasma control; IDA-PBC control; Port-Controlled Hamiltonian systems; Distributed parameter systems

Domains: Automatic

Ngoc Minh Trang Vu, Laurent Lefevre, Rémy Nouailletas, Federico Felici. Plasma q -profile control in tokamaks using a damping assignment passivity-based approach. Control Engineering Practice, 2016, 54, pp.34-45. ⟨10.1016/j.conengprac.2016.05.003⟩. ⟨hal-01624840⟩