锥形储液罐的非线性模型预测控制

IF 0.9 Q4 CHEMISTRY, MULTIDISCIPLINARY Acta Chimica Slovaca Pub Date : 2018-10-01 DOI:10.2478/acs-2018-0020
Martin Klauco, Ľ. Čirka
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引用次数: 1

摘要

摘要本文分析和设计了一种用于锥形工业储液罐液位控制的模型预测控制策略。MPC是基于一个非线性动态模型,该模型描述了液体进口流量变化引起的液位变化。采用欧拉离散化方法,将连续时间动力学转化为非线性MPC (NMPC)设计中的离散时间动力学。通过仿真实例研究,NMPC已被证明可以跟踪液位的变化,从而提高控制性能。本文还将传统的最优控制方法线性MPC与NMPC策略进行了比较。
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Non-linear model predictive control of conically shaped liquid storage tanks
Abstract This paper deals with the analysis and design of a model predictive control (MPC) strategy used in connection with level control in conically shaped industrial liquid storage tanks. The MPC is based on a non-linear dynamic model describing changes of the liquid level concerning changes in the inlet flow of the liquid. Euler discretization of the dynamic system was applied to transform con-tinuous time dynamics to its discrete-time counterpart used in non-linear MPC (NMPC) design. By means of a simulation case study, NMPC has been shown to track the changes of the liquid level, hence provides increased control performance. This paper also compares the traditional approach of optimal control, linear MPC, with the NMPC strategy.
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来源期刊
Acta Chimica Slovaca
Acta Chimica Slovaca CHEMISTRY, MULTIDISCIPLINARY-
自引率
12.50%
发文量
11
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