Plasmamagnetic robust control intokamak-reactor

Thepaperisdevoted tothedevelopment oftwo- loopplasmaposition, current andshapecontrol systemin tokamak-reactor. TheH<oapproach isusedforthedesign of SISOandMIMO feedback controllers. Intheprocedure of controllers design theMIMO linear plantmodel(plasma in tokamak) DINA-Lwasused.Thelinear modelwasobtained fromnon-linear plant modelrealized byplasma-physics DINA codeforITERconditions. Thesetofsimulations ofclosed-loop magnetic systemwasdoneonlinear (DINA-L) andnonlinear (DINA)plantmodelswhen minordisruptions occurred. Simulations results forbothmodelsweresuperimposed and showedgoodcoincidence at acceptable controlsystem performance. I.INTRODUCTION Tokamaks (toroidal vessels withmagnetic coils) (1)areat present themostpromising devices formagnetic plasma confinement toachieve conditions ofthermonuclear fusion. Keeping high-temperature plasma (ionized gas)separately fromplasma surrounding surfaces fatally needsapplication ofmagnetic control systems. Plasmacontrol byexternal magnetic fields inmodern operating tokamaks namely JET, DIII-D, ASDEX Upgrade, JT-60U,TCV andfuture

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