TRIAM-1Mにおけるプラズマ垂直位置制御特性の解析

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タイトル別名
  • Analysis of Plasma Vertical Position Control Property on TRIAM-1M
  • TRIAM 1M ニ オケル プラズマ スイチョク イチ セイギョ トクセイ ノ カイセキ

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説明

We analyzed plasma vertical position control property. We analyzed time evolution of plasma vertical position by computer simulation, when differential time is 0.2, 1.0 and 1.5 ms. _Plasma vertical position converges toward the reference when differential time is 0.2 ms. But the convergence is slow since differential effect is slight. When the differential time is 1.5 ms, plasma vertical position becomes hunching and does not converge. When differential time is 1.0 ms, it converges toward the reference although plasma vertical position becomes hunching. We analyzed controllable region by computer simulation of time evolution of plasma vertical position. When proportional gain is 1.4, it is controllable at n= -7 .9. Optimization of the proportional gain (1.2) makes it controllable at n= -8 .1. This result is near the one from ideal model that has little delay time (100 micro-seconds).

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