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首页> 外文期刊>Journal of instrumentation: an IOP and SISSA journal >Simulation of open-loop plasma vertical movement response in the Damavand tokamak using closed-loop subspace system identification
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Simulation of open-loop plasma vertical movement response in the Damavand tokamak using closed-loop subspace system identification

机译：利用闭环子空间系统识别模拟Damavand托卡马克中的开环等离子体垂直运动响应

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摘要

The formulation of a multi-input single-output closed-loop subspace method for system identification has been employed for the purpose of obtaining control-relevant model of the open loop response for plasma vertical movement in the Damavand tokamak. Such a model is particularly well suited for the robust controller design. The method described in this paper is a kind of worstcase identification technique, aiming to minimize the error between the identified model and the true plant. The accuracy of the estimation of the plant dynamics has been tested by different experiments. The fitness of the identified model around the defined operating point has been more than 90%, and compared to the physical-based model, it has better root mean squared error (RMSE) measure of the goodness of fitting.
机译：为了获得Damavand托卡马克中等离子体垂直运动的开环响应的控制相关模型，已采用系统识别的多输入单输出闭环子空间方法的公式表示。这样的模型特别适合于鲁棒的控制器设计。本文描述的方法是一种最坏情况识别技术，旨在最大程度地减少所识别模型与真实设备之间的误差。通过不同的实验测试了估算植物动态的准确性。所确定的模型在定义的工作点附近的适应度已超过90％，并且与基于物理的模型相比，它具有更好的拟合优度的均方根误差（RMSE）度量。

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