Analysis of vertical displacement events in tokamaks removing the evolutionary equilibrium assumption

Abstract A key parameter for the vertical stabilisation system of future fusion devices like ITER is maximum allowable displacement which can be recovered by magnetic control system. The computation this figure merit based on MHD evolutionary equilibrium models: perturbation position implicitly considers a external passive currents guarantees equilibrium. In paper, we quantify consequences considering non-equilibrium perturbations position. case, one has to specify separately initial and currents. We show in particular under circumstances evolution position, as predicted models, coincides with that obtained also plasma inertia.