Fig. 2: System identification and the feedback-control loop. | Nature Energy

Fig. 2: System identification and the feedback-control loop.

From: Demonstration of Super-X divertor exhaust control for transient heat load management in compact fusion reactors

Fig. 2

a, Time domain and frequency domain response of the D2 Fulcher band front position Ltar to a perturbation of the requested main chamber D2 gas valve flow rate in Super-X divertor geometry, experiment number 47116. The input frequency component is clearly observed in the system output; Extended Data Fig. 2. b, Feedback-control loop showing the reference front position Ltar,ref, the error e with respect to the measured front position Ltar and the corresponding requested flow rate u by the controller. The to-be-controlled system includes the gas system, plasma and MWI sensor dynamics.

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