Closed-loop non-linear Simulations with MAXFEA code






Uppermost gap time evolution after a plasma disturbance, nonlinear simulations with different conservation hypothesis.

The non-linear code MAXFEA is used to simulate the behaviour of the system in closed loop in order to assess the performances of the control system in keeping the magnetic configuration of the plasma in presence of disturbances.

The designed controllers are implemented in MAXFEA and tested against the whole set of nominal disturbances at different equilibria and the results compared with those provided by the linear models.

It is also possible to reconstruct the ITER pulse reference scenario in MAXFEA implementing the complete control scheme, including voltage feedforward components and capability to switch between limiter and divertor phase controller. This allows to perform dynamic simulation of the ITER discharge and therefore to assess the performances of the control system in driving the plasma magnetic configuration along the desired evolution.
 


 

Related pubblications

  1. M. Cavinato, G. Marchiori, A. Beghi, D. Ciscato, and A. Portone, "ITER scenario simulations with a non-linear MHD equilibrium code,'' in Proc. of the 20th Symposium on Fusion Technology (B. Beaumont, P. Libeyre, B. de Gentile, and G. Tonon, eds.), vol. 1, (Marseille, France), pp. 587-590, September 1998.
  2. M. Cavinato, A. Kavin, V. Lukash, and R. Khayrutdinov, "Non-linear simulations by numerical Magneto Hydro Dynamics equilibrium codes in ITER-FEAT," submitted to IEEE Conf. on Control Appl. 2000.


 
 

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