The stabilization of post-disruptive runaway (RE) beams is of crucial importance to avoid ma- jor damages to the plasma facing components. RE beam dynamics are quite different from stan- dard plasmas and deserve specific controllers to improve their confinement. Mitigation techniques (MGI, shattered pellet injections) can be combined with RE beam stabilization and controlled current ramp-down strategies to provide a complete mitigation system. In this work we introduce an ad-hoc adaptive control technique, based on recent methodologies, tailored to improve the control scheme robustness necessary for machine portability.
Adaptive control design and energy distribution estimation via nonlinear observer for runaway electron in FTU
Causa F;Possieri C;
2017
Abstract
The stabilization of post-disruptive runaway (RE) beams is of crucial importance to avoid ma- jor damages to the plasma facing components. RE beam dynamics are quite different from stan- dard plasmas and deserve specific controllers to improve their confinement. Mitigation techniques (MGI, shattered pellet injections) can be combined with RE beam stabilization and controlled current ramp-down strategies to provide a complete mitigation system. In this work we introduce an ad-hoc adaptive control technique, based on recent methodologies, tailored to improve the control scheme robustness necessary for machine portability.File in questo prodotto:
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