Abstract
The paper is devoted to development of tracking control system for plasma shape and current of tokamak-reactor as a future practically inexhaustible source of energy production. The aim of the plasma magnetic control system is to track scenario currents in poloidal field coils, some magnetic surface or separatrix and plasma current during phase of plasma current ramp-up. This aim is achieved by cascade control scheme which consists of multivariable loop of tracking system for scenario currents and the second loop for plasma current and shape control. Two basic approaches are used for cascade control: decoupling and robust H ∞ loop shaping design. In doing so, the scalar proportional and robust controllers are applied to stabilize plasma vertical speed around zero of unstable vertical plasma position. The simulation results of closed loop systems obtained on linearized models of nonlinear plasma-physics DINA code are presented.
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