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Simulation studies of plasma shape identification and control in Korea Superconducting Tokamak Advanced Research

Hogun Jhang, C.E Kessel, N Pomphrey, Jin-Yong Kim, G.S Lee2001年Fusion Engineering and DesignIF 1.7出版社

AbstractSimulation studies of plasma shape identification and shape control for the proposed Korea superconducting tokamak advanced research (KSTAR) are described. It is shown that the total number of magnetic measurements can be effectively reduced by considering the patterns of magnetic flux and fields, generated by plasma, along a prescribed measurement contour. The effect of eddy currents on shape identification is investigated in dynamic simulations. The isoflux control scheme and a standard PID control law are adopted for the development of a model shape control system. It is shown that appropriate weighting factors of poloidal field coils, incorporating the efficacy of each coil to a shape control point, can significantly reduce the total feedback power required for a shape control action. Finally, a shape control simulation using calculated flux errors, which correspond to a more realistic experimental situation, is presented.

日本語訳

核融合科学におけるプラズマ形状同定と形状制御のためのシミュレーション研究について、提案された韓国超伝導トカマク先進研究装置(KSTAR)を対象に述べる。磁気測定の総数は、プラズマによって生成される磁束と磁場のパターンを、指定された測定輪郭に沿って考慮することにより、効果的に削減できることが示される。渦電流が形状同定に及ぼす影響は、動的シミュレーションにおいて調査される。等磁束制御方式と標準的なPID制御則が、モデル形状制御システムの開発のために採用される。ポロイダル磁場コイルの適切な重み係数は、各コイルの形状制御点に対する有効性を組み込むことにより、形状制御動作に必要な総フィードバック電力を大幅に低減できることが示される。最後に、より現実的な実験状況に対応する計算された磁束誤差を用いた形状制御シミュレーションが提示される。

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kstar中精度(概要文一致)
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