Smith-predictor based enhanced Dual-DOF fractional order control for integrating type CSTRs

IF 1.6 4区工程技术 Q3 Chemical Engineering

International Journal of Chemical Reactor Engineering Pub Date : 2023-04-03 DOI:10.1515/ijcre-2022-0216

Rammurti Meena, Dipjyoti Das, Vipin Chandra Pal, S. Chakraborty

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引用次数: 1

Abstract

Abstract Continuously Stirred Tank Reactors (CSTR) are one of the widely used reactors in the chemical industry. Controlling such reactors is challenging because many times it demonstrates a model which is having a pole at the origin of the s-plane. Moreover, the presence of a dead time necessitates more effective control measures. This work presents a modified smith predictor-based control for integrating type CSTRs with time delay in order to provide adequate servo and regulatory closed-loop responses. Numerous researches on dual DOF control suggested different controller settings for outer and inner-loop controllers. But, in the current study, both the controllers are proposed to be the same which drastically reduces the complexity of the design. To offer good robustness in the closed-loop response, the controller is synthesized with a user-defined maximum sensitivity. Case studies on CSTRs for both the nominal and disturbed process models are conducted and the same is compared with recently developed control laws. Lastly, a performance comparison on ISE, ITAE, and IAE is provided.

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基于smith预测器的积分型cstr增强双自由度分数阶控制

连续搅拌釜式反应器（CSTR）是化学工业中应用最广泛的反应器之一。控制这样的反应堆是具有挑战性的，因为它多次展示了一个在s平面原点有极点的模型。此外，死区的存在需要采取更有效的控制措施。这项工作提出了一种改进的基于史密斯预测器的控制，用于具有时间延迟的积分型CSTR，以提供足够的伺服和调节闭环响应。对双自由度控制的大量研究表明，外环控制器和内环控制器的控制器设置不同。但是，在目前的研究中，两种控制器都是相同的，这大大降低了设计的复杂性。为了在闭环响应中提供良好的鲁棒性，控制器被合成为具有用户定义的最大灵敏度。对标称和扰动过程模型的CSTR进行了案例研究，并将其与最近开发的控制律进行了比较。最后，对ISE、ITAE和IAE进行了性能比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Chemical Reactor Engineering 工程技术-工程：化工

CiteScore

2.80

自引率

12.50%

发文量

107

审稿时长

3 months

期刊介绍： The International Journal of Chemical Reactor Engineering covers the broad fields of theoretical and applied reactor engineering. The IJCRE covers topics drawn from the substantial areas of overlap between catalysis, reaction and reactor engineering. The journal is presently edited by Hugo de Lasa and Charles Xu, counting with an impressive list of Editorial Board leading specialists in chemical reactor engineering. Authors include notable international professors and R&D industry leaders.