Plasma magnetic cascade multiloop control system design methodology in a tokamak

Modeling and robust decentralized control system design for plasma current and position in Damavand tokamak

“…There are a number of control strategies to control the plasma current, position and shape [3,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Multivariable H ∞ optimal controller [11,12], normalized coprime factorization H ∞ controller [6], adaptive PID controller using the recursive least square algorithm [13], optimal fractional-order PID controller [14], hierarchical dynamic control loop based on the MPC algorithm [15], and generalized hybrid controller [16] were implemented on TCV to control the plasma parameters.…”

“…A multivariable H ∞ magnetic control system was simulated to control the plasma position, current, and shape in ITER [18]. Cascade multi-loop control system based on Relative Gain Array/µ-procedures and H ∞ algorithm [19], QFT method and H ∞ algorithm [20], and robust H ∞ switching [21] were designed and simulated for Globus-M. Neural network controllers were implemented to control the vertical [22] and radial position [23] of plasma in DT. A LQI optimal controller was used to control the plasma current profile in DIII-D [24].…”

Stability Analysis of Unsteady MHD Rear Stagnation Point Flow of Hybrid Nanofluid

“…Controlling plasma dynamics with the inclusion of MHD effect in tokamaks is one of the most important issues in the theoretical and practical study of controlled thermonuclear fusion, as well as in the global transition to fusion power engineering. However, due to the complexity of construction in tokamak plasma properties, the plasma magnetic control approaches are still underexplored [2]. Because of these circumstances, complex mathematical models and the use of high-performance computing technologies are required.…”

“…Because of these circumstances, complex mathematical models and the use of high-performance computing technologies are required. The simulation approach and numerical study in plasma control systems are usually beneficial in saving a lot of expensive experimental time [3]. Mitrishkin et al [2] conducted an experimental and numerical study on a plasma magnetic cascade multiloop control system.…”

“…The simulation approach and numerical study in plasma control systems are usually beneficial in saving a lot of expensive experimental time [3]. Mitrishkin et al [2] conducted an experimental and numerical study on a plasma magnetic cascade multiloop control system. Their findings revealed that a quantitative computation of the plasma shape Mathematics 2021, 9, 2428 2 of 15 scenario is required to obtain the most advantageous magnetic control system operating modes.…”