Saturated output-feedback control and state estimation of a class of exothermic tubular reactors

Reyes, Hugo A. Franco-de los; Álvarez, Jesús

doi:10.1016/j.jprocont.2022.02.005

Cited by 3 publications

(1 citation statement)

References 40 publications

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“…The present study is a point of departure to address in the future: (i) the optimization-based systematization of PI control gain tuning in the light of SP control, (ii) the compensation of PDF extremum shifting due to multiplicative noise (Krstic and Deng, 1988;Baratti et al, 2018), (iii) the development of the observer-based MP state control variant of the stochastic passive NL mean SF control (Krstic and Deng, 1988;Lu et al, 2022), (iv) the supplementation of the proposed PI controlbased MP state regulation scheme with a noninterfering MP state estimator for setpoint adjustment in a supervisory layer (McAvoy, 2002;Maxim et al, 2019), and (v) the deterministic-to-stochastic extension of the saturated PI control with anti-windup protector (Alvarez et al, 1991;Schaum et al, 2012;Franco-de los Reyes, 2022). 3) (•): (i) 𝐶 1 (fragile bimodality), (ii) 𝐶 2 (robust bimodality), and (iii) 𝐶 3 (robust vulcanoid).…”

Section: Discussionmentioning

confidence: 99%

On the closed-loop stochastic dynamics of two-state nonlinear exothermic CSTRs with PI temperature control

Álvarez

Baratti

2023

Computers & Chemical Engineering

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Section: Discussionmentioning

confidence: 99%

On the closed-loop stochastic dynamics of two-state nonlinear exothermic CSTRs with PI temperature control

Álvarez

Baratti

2023

Computers & Chemical Engineering

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Temperature Control of Nonlinear Uncertain Systems via Model-Free Cascaded Controller: Application to an Infrared Emissometer

Gabirondo-López,

Arredondo,

Igartua

2025

IEEE Trans. Contr. Syst. Technol.

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Conditioned Adaptive Control for an Uncertain Bioreactor with Input Saturation and Steep Settling Desired Output

Rincón

Hoyos²,

Candelo-Becerra³

2022

Symmetry

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In this work, a controller is developed for a continuous bioreactor with an unknown reaction rate term, subject to input saturation. The substrate concentration and the dilution rate are chosen as output and input, respectively. The controller formulation and the stability analysis are performed by the theory of dead zone Lyapunov functions, Lyapunov stability, and model reference adaptive control. As the main results, the dynamics of the Lyapunov function is determined separately for saturation and non-saturation events, and then a unified expression is deduced. In addition, the asymptotic convergence of the tracking error and boundedness of updated parameters are determined for the whole closed loop regime encompassing saturation and non-saturation events, and also for input saturation events, as a function of the terms and parameters of the reference and system models. The main contributions over closely related control designs, are (i) the effect of input constraint limits and desired output on the convergence of the tracking error during input saturation events are determined, considering settling behavior of the desired output with a steep section; (ii) the upper limit of the input constraint that guarantees output convergence during input saturation events is determined as function of the model terms, but independently of the time derivative of the desired output and its limit; (iii) a new dead zone Lyapunov function is proposed which allows proving asymptotic convergence of the tracking error during input saturation events in the presence of a fast variation in the desired output. Finally, the effectiveness and advantages of the developed controller are illustrated by simulation.

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Saturated output-feedback control and state estimation of a class of exothermic tubular reactors

Cited by 3 publications

References 40 publications

On the closed-loop stochastic dynamics of two-state nonlinear exothermic CSTRs with PI temperature control

On the closed-loop stochastic dynamics of two-state nonlinear exothermic CSTRs with PI temperature control

Temperature Control of Nonlinear Uncertain Systems via Model-Free Cascaded Controller: Application to an Infrared Emissometer

Conditioned Adaptive Control for an Uncertain Bioreactor with Input Saturation and Steep Settling Desired Output

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