Implementation of BN Control in the National Spherical Torus Experiment

Gerhardt, S. ; Bell, M. G. ; Cropper, M. ; Gates, D. A. ; Koleman, E. ; Lawson, J. ; Marsala, B. ; Menard, J. E. ; Mueller, D.

Princeton University. Plasma Physics Laboratory.

关键词: 70 Plasma Physics And Fusion Technology Nstx;    Nstx;   

DOI  :  10.2172/1056653
RP-ID  :  PPPL-4810
RP-ID  :  DE-ACO2-09CH11466
RP-ID  :  1056653

美国|英语

来源: UNT Digital Library

【 摘 要 】

We have designed and constructed a system for control of the normalized B in the National Spherical Torus Experiment [M. Ono, et al., Nuclear Fusion 40, 557 (2000)]. A PID operator is applied to the difference between the present value of B N (from realtime equilibrium reconstruction) and a time-dependent request, in order to calculate the required injected power. This injected power request is then turned into modulations of the neutral beams. The details of this algorithm are described, including the techniques used to develop the appropriate control gains. Example uses of the system are shown