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T.Tsuzuki, K.Toi and K.Matsuura,
パソコンによる JIPP T-IIU プラズマの平衡位置フィードバック制御
"Feedback Control of Plasma Equilibrium with Control System Aided by Personal Computer on the JIPP T-II Tokamak"
Date of publication:
JIPP T- IIU, personal computer, position control, PID control, Bode diagram, transfer function, Basic program, assembler program
A feedback control system aided by a personal computer is developed to maintain plasma position on the required position in the JIPP T-IIU tokamak. The personal computer enables to adjust various control parameters easily. In this control system, a control demand for driving the power supply of feedback controlled vertical field coils is composed to be proportional to a total plasma current. This system has been successfully employed throughout the discharge where the plasma current substantiallly changes from zero to hundreds of kiloamperes, because the feedback control can be done, being independent of the plasma current. The analysis of this feedback control system taken into account of digital sampling agrees well with the experimentai results.
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