Analysis of Optimal Feedback Control of Vertical Plasma Position in a Tokamak System
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概要
- 論文の詳細を見る
An optimal control method was used to control the vertical position of a non-circular plasma with negative n-indices in a tokamak system. Taking the time delays in the control devices into consideration was found to improve the optimal feedback control law. Transient-response analysis of the control system in the TRIAM-1M tokamak showed that the optimal control technique can be used to control the plasma position in the stable region and that the ultimate lower limit of the n-index for the stabilization can be close to the limit n_c for the fast-growing mode of positional instability. In addition, a pulsewidth-modulated inverter power supply with gate turn-off thyristors is proposed as a feedback power supply. This power supply has enabled the optimal position control of highly-elongated plasmas to be carried out an actual tokamak system.
- 社団法人応用物理学会の論文
- 1985-07-20
著者
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NAKAMURA Kazuo
Research Institute for Applied Mechanics, Kyushu University
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Itoh Satoru
Department Of Applied Physics Hokkaido University
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Itoh S
Futaba Corp. Chiba Jpn
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Itoh Satoshi
Research Institute for Applied Mechanics, Kyushu University
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NAKAMURA Yukio
Research Institute for Applied Mechanics, Kyushu University
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Nakamura Y
The Authors Are With Fujitsu Laboratories Limited
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Itoh S
Kyushu Univ. Kasuga Jpn
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Moriyama Shin-ichi
Research Institute For Applied Mechanics Kyushu University
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Nakamura Kazuo
Research And Development Division Kikkoman Corporation
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Nakamura Yukio
Research Institute For Applied Mechanics Kyushu University
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Nakamura Kazuo
Research & Development Division Kikkoman Corporation
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