Mitigation of the impact of the magnetic measurement noise on the plasma equilibrium control in JT-60SA

Miyata, Yoshiaki; Suzuki, Takahiro; Urano, Hajime; Takechi, Manabu; Ide, Shunsuke

In the plasma equilibrium control for tokamak devices, after the plasma shape reconstruction system identifies the plasma quantities from the magnetic measurements such as the magnetic sensor and poloidal magnetic field coil, the plasma equilibrium controller operates the actuator to bring the identified plasma quantities closer to the target ones by feedback control action. The influences of potential magnetic measurement noise on the plasma equilibrium control in JT-60SA is quantitatively evaluated and the techniques for mitigating the influences are reported.