Etude d'un réseau cryogénique multi-clients pour SPIRAL2

Abstract : The thesis works describe in this manuscript deal with the modelling and the control ofLINAC cryogenic process. The components of the LINAC cryogenic system (cryomodule,valves, pipes,...) are modeled as interconnectable objects. Those same objects are usedto model the SPIRAL2 cryogenic system. The model trueness is evaluated through comparisonbetween experimental and simulated data. Once the model prediction capabilityhas been validated, the models are used to synthetized control laws. More specifically, alinear quadratic command and an extended Kalman filter has been realized for the SPIRAL2cryomodule. Finally, a hierarchical control for a cryogenic refrigerator has beenstudied. A method is proposed for the control of multiple interconnected subsystemsregulated through PID, LQ and MPC controllers.
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Adrien Vassal. Etude d'un réseau cryogénique multi-clients pour SPIRAL2. Physique [physics]. Normandie Université, 2019. Français. ⟨NNT : 2019NORMC223⟩. ⟨tel-02390264v2⟩

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