  The complete refuelling of the plasma density loss (pump-out) caused by
mitigation of Edge Localised Modes (ELMs) is demonstrated on the ASDEX Upgrade
tokamak. The plasma is refuelled by injection of frozen deuterium pellets and
ELMs are mitigated by external resonant magnetic perturbations (RMPs). In this
experiment relevant dimensionless parameters, such as relative pellet size,
relative RMP amplitude and pedestal collisionality are kept at the ITER like
values. Refuelling of density pump out requires a factor of two increase of
nominal fuelling rate. Energy confinement and pedestal temperatures are not
restored to pre-RMP values by pellet refuelling.
