METHOD FOR MAGNETIC CONTROL OF PLASMA IN TOKAMAK IN REAL TIME AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2022 - IPC G21B1/00 

FIELD: magnetic feedback control of the plasma shape and current.

SUBSTANCE: invention relates to a method for magnetic feedback control of the plasma shape and current in vertically elongated tokamaks. The method consists in making two interacting industrial computers in the form of a feedback connection (digital twin of the control system) and remotely connected to a third industrial computer connected directly by feedback to the control object - a high-temperature plasma tokamak. One computer in the digital twin feedback acts as a control object, i.e. is an external model of the control object, and the second computer is the role of a controller (a control device with an algorithm for restoring plasma equilibrium at the input and having an internal model). The controllers of the external model and the tokamak are tuned on their internal models as closely as possible to the real tokamak with plasma, so that when switching to the external model and the tokamak, the guaranteed operation of the control system with the largest margins of stability, with the highest possible accuracy and speed, is ensured. The developed control algorithms on the digital twin are transmitted via remote communication to the tokamak controller.

EFFECT: expanding the possibilities of setting up the magnetic control system for plasma in tokamaks with the maximum approximation of control systems to a real experiment with optimization of their parameters and characteristics, with the possibility of stabilizing the position of the plasma separatrix when reflecting the action of disturbances such as small disruption, and setting the trajectory of the plasma separatrix during the divertor phase of the discharge.

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