Author/Authors :
Nakamura، نويسنده , , K. and Luo، نويسنده , , J.R. and Wang، نويسنده , , H.Z. and Ji، نويسنده , , Z.S. and Wang، نويسنده , , H. and Wang، نويسنده , , F. and Qi، نويسنده , , N. and Sato، نويسنده , , K.N. and Hanada، نويسنده , , K. and Sakamoto، نويسنده , , M. and Idei، نويسنده , , H. L. HASEGAWA، نويسنده , , M. and Iyomasa، نويسنده , , A. and Kawasaki، نويسنده , , S. and Nakashima، نويسنده , , H. and Higashijima، نويسنده , , A.، نويسنده ,
Abstract :
Magnetic sensorless control experiments of the plasma horizontal position have been carried out in the superconducting tokamak HT-7. Previously the horizontal position was calculated from the vertical field coil current and voltage without using signals of magnetic sensors like magnetic coils and flux loops placed near the plasma. The calculations are made focusing on the ripple frequency component of the power supply with thyristor and directly from them without time integration. There is no drift problem of integrator of magnetic sensors. Two kinds of experiments were carried out, to keep the position constant and swing the position in a triangular waveform.
