Dual Composition Control in a Middle-Vessel Batch Distillation Column
Dual Composition Control in a Middle-Vessel Batch Distillation Column
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DOI：
10.1021/ie0005405
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发表时间：
2001-08
影响因子：
4.2
通讯作者：
R. Monroy-Loperena;J. Álvarez-Ramírez
中科院分区：
文献类型：
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作者：
R. Monroy-Loperena;J. Álvarez-Ramírez
本文研究了中间容器间歇精馏塔的双重成分控制问题。控制目标是通过控制回流流量来调节塔顶馏出物纯度，并通过控制沸腾流量来调节塔底产物组成。通过使用输入输出建模误差的估计器，输出反馈补偿器被设计为等效于用于塔顶纯度调节器的具有抗复位饱和结构的PID控制器和用于塔底成分调节器的具有抗复位饱和结构的PI控制器。讨论了调整问题，表明它们具有简单的物理意义。通过动态模型的数值模拟，显示了控制器在面对未知非线性和采样/延迟测量时调节塔顶产物成分和塔底产物成分的能力。
The dual composition control problem in a middle-vessel batch distillation column is studied in this work. The control objective is to regulate the overhead purity by manipulating the reflux flow rate and the bottoms product composition by manipulating the boilup flow rate. By using estimators of the input−output modeling error, output-feedback compensators are designed that are shown to be equivalent to a PID controller with an antireset windup structure for the overhead purity regulator and a PI controller with an antireset windup structure for the bottoms composition regulator. Tuning issues are discussed, showing that they have straightforward physical meanings. The ability of the controllers to regulate the overhead product composition and the bottoms product composition in the face of unknown nonlinearities and sampled/delayed measurements is shown via numerical simulations on a dynamical model.