精馏塔控制的改进方法

IF 0.8 4区 工程技术 Q4 ENGINEERING, CHEMICAL
Sanja Prodanović, N. Nedic, V. Filipovic, Ljubiša Dubonjić
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引用次数: 3

摘要

本文研究了一种以双输入双输出过程为模型的精馏塔控制算法。将两部分连接得到其改进型,这种组合至今尚未应用于此类工业厂房。这部分包括:首先设计了一个简化的解耦器,对解耦过程采用d -分解方法得到分散的PID控制器。设计解耦器使过程对角化,从积分误差判据与积分器增益的关系出发,考虑被控对象工艺要求的期望响应特性,定义了两个单输入单输出过程的PID控制器参数。它们的连接提供了集中控制。仿真完成后,对所提出算法得到的过程响应进行分析,并与文献结果进行比较。与文献中已有的蒸馏塔控制算法相比,所提出的集中控制器设计方法除了使用简单和实现过程动态行为多样性的灵活性外,还具有更好的响应特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modified approach to distillation column control
This paper contains methodology research for forming the control algorithm for a distil­lation column, modeled as TITO (two-input two-output) process. Its modified form was obtained by connecting the two parts, and this combination hasn't been applied for such a industrial plant, until now. These parts include: a simplified decoupler which was first designed and decentralized PID controller obtained using D-decomposition method for such decoupled process. The decoupler was designed in order to make process become diagonal, and parameters of PID controllers are defined for the two SISO (single-input single-output) processes starting from relation between IE (integral error) criterion and integrator gain, taking into account desired response characteristics deriving from tech­nological requirements of controlled plant. Their connecting provides centralized control. Analysis of the processes responses, obtained by the proposed algorithm and their com­par­ison with the results from the literature, were performed after the completion of the simulations. The proposed approach to the centralized controller design, beside its sim­plicity of usage and flexibility in achieving diversity of process dynamic behavior, gives better response characteristics, in comparison with existing control algorithms for distil­lation column in the literature.
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来源期刊
Hemijska Industrija
Hemijska Industrija 工程技术-工程:化工
CiteScore
1.60
自引率
11.10%
发文量
12
审稿时长
6-12 weeks
期刊介绍: The Journal Hemijska industrija (abbreviation Hem. Ind.) is publishing papers in the field of Chemical Engineering (Transport phenomena; Process Modeling, Simulation and Optimization; Thermodynamics; Separation Processes; Reactor Engineering; Electrochemical Engineering; Petrochemical Engineering), Biochemical Engineering (Bioreactors; Protein Engineering; Kinetics of Bioprocesses), Engineering of Materials (Polymers; Metal materials; Non-metal materials; Biomaterials), Environmental Engineeringand Applied Chemistry. The journal is published bimonthly by the Association of Chemical Engineers of Serbia (a member of EFCE - European Federation of Chemical Engineering). In addition to professional articles of importance to industry, scientific research papers are published, not only from our country but from all over the world. It also contains topics such as business news, science and technology news, information on new apparatus and equipment, and articles on environmental protection.
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