Abstract
The control law of distillation column under unknown parameters and external disturbances in feed is obtained. The control law design is based on the robust suboptimal auxiliary loop algorithm for rejecting perturbations and ensuring the track of column output to reference signal.The simulations illustrate an efficiency of proposed scheme and comparison with some existing ones.
Highlights
A distillation column is a widely used technical system in many areas of industry such as chemical, petroleum refining, pharmacological, food, etc
The efficiency of the proposed scheme is illustrated by the simulations for the model of the distillation column with parameters from [Bouyahiaoui et sl., 2005]
Let a model of the distillation column be described by the equations x (t) = Ax(t) + Bu(t) + Df (t), y(t) = Cx(t), (1)
Summary
A distillation column is a widely used technical system in many areas of industry such as chemical, petroleum refining, pharmacological, food, etc. Even an insignificant difference of model parameters from the original ones will lead to a failure of stated quality indicators or to a loss of stability, if the control system is based on algorithms [Hsu, Yu, and Liou, 1990; Xianku and Yicheng, 2005; Tyreus, 1979; Diggelen, Kiss, and Heemink, 2010; Musch and Steiner, 1995; Bouyahiaoui et sl., 2005; Khelassi, 1991; Afanasyev, Kolmanovskii, and Nosov, 2003; Skogestad, Morari, and Doyle, 1988; Razzaghi and Shahraki, 2006; Yu, Poznyak, and Alvarez, 1999]. The efficiency of the proposed scheme is illustrated by the simulations for the model of the distillation column with parameters from [Bouyahiaoui et sl., 2005]
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