Maximum sensitivity constrained modified Smith predictor for delayed integrating type stirred tank reactors model
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Maneesh Kumar Gupta
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Moina Ajmeri
Abstract
A maximum sensitivity constrained modified Smith predictor consisting of two PD controllers is developed for integrating type continuously stirred tank reactors (CSTRs) model. This CSTR type model approximated as integrating first order plus time delay with and without inverse response processes is challenging to control as it contains integrating term, process time delay and a zero lying in the right half of s-plane. The inner and outer loop PD blocks are tuned to achieve the desired set-point tracking and load disturbance rejection responses using direct synthesis approach. The proposed control is free from integrating action and therefore, smooth setpoint tracking response with no overshoot is obtained which is highly desirable in the process industries. Two design parameters λ and τ are involved in the suggested control whose suitable values are recommended to achieve the desired robustness level by specifying the maximum sensitivities of the inner and outer loop transfer functions. Various illustrative models are considered to show the effectiveness and superiority of the proposed control structure. The system robustness towards process parameter perturbations and load disturbances are investigated in all the examples. Performance of the suggested modified Smith predictor is found superior as compared to the other recently published works.
Acknowledgments
The authors are very grateful to NIT Patna, India and Veer Bahadur Singh Purvanchal university, Jaunpur, India for providing the facilities and research environment to complete this work.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: We will take responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Research funding: There is no funding in the support of this work.
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Data availability: All data generated or analysed during this study are included in this article.
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Articles in the same Issue
- Frontmatter
- Articles
- Toxicological assessment of reactive blue 19 dye aqueous solutions under UV-LED light
- Enhanced degradation of malachite green through heterogeneous processes using an iron oxide catalyst
- Optimization design of a two-step microreactor with spiral structure for high-performance catalytic reactions
- Kinetics of manganese removal from groundwater via biological activated carbon fiber
- Study of temperature dynamics and influencing factors during composting process
- Nonlocal modeling of continuously stirred tank reactors with residence time distribution
- Enhanced tribological performance of transesterified corn oil biodiesel blends with CuO and TiO2 nanoparticles: experimental analysis on wear and friction reduction using environment friendly lubricants
- Maximum sensitivity constrained modified Smith predictor for delayed integrating type stirred tank reactors model
- Effect of ion exchange resin membranes and activated carbon electrodes in water desalination using capacitive deionization technique with saline streams
- Kinetic and thermodynamic study of maize stalk biomass using thermogravimetric analysis
