A model for coupled plasma current and position feedback control in the ISX-B tokamak

摘要: In the ISX-B tokamak, poloidal fields are supplied by sets of coils which functionally coupled, in sense that each set contributes to both Ohmic-heating (OH) flux and vertical field (VF), contrast traditional way grouping into 'decoupled' OH VF windings. As a result, control plasma current Ip horizontal position ΔR also strongly coupled. A transfer matrix model this system is described, used guide design analysis feedback for ISX-B. The equations linearized about equilibrium operating point facilitate stability noise sensitivity. On slow time scales, non-linearities tractable enough be large-signal as well. accurately simulates actual behaviour can generalized any since IP – coupling fact always exists. It especially applicable future large machines, such TFCX INTOR, engineering necessity will have coupled