Open loop optimal control for plasma scenarios in the presence of eddy currents
暂无分享,去创建一个
This paper deals with the optimization of poloidal field coil currents and voltages in a tokamak to obtain desired plasma scenarios in the presence of significant induced currents in the passive structures. These eddy currents arise in transient phases like initiation, response to disturbances, current ramp up and ramp down. The open loop control problem is solved via Linear Quadratic Optimal control implemented in the discrete-time domain. All the calculations are based on plasmaless modeling with the assumption of a nominal current distribution within a fixed sequence of plasma boundaries. The effectiveness of the proposed technique is been demonstrated with detailed nonlinear numerical simulations of a possible ITER Scenario.
[1] G. Ambrosino,et al. Open Loop Control Strategies for Plasma Scenarios: Linear and Nonlinear Techniques for Configuration Transitions , 2006, Proceedings of the 45th IEEE Conference on Decision and Control.
[2] Alfredo Pironti,et al. Magnetic Control of Tokamak Plasmas , 2008 .
[3] R. Albanese,et al. Integral formulation for 3D eddy-current computation using edge elements , 1988 .
[4] Alfredo Pironti,et al. PF coil voltage optimization for start-up scenarios in air core tokamaks , 1994 .