Hybrid neural network controller for uncertain nonlinear discrete-time systems with non-symmetric dead zone and unknown disturbances

R Kumar, UP Singh, A Bali, K Raj - International Journal of Control, 2023 - Taylor & Francis
An adaptive hybrid neural control scheme is presented for uncertain non-linear discrete-time
Systems (UNLDTS) with non-symmetric dead-zone input and unknown disturbances. This …

Stabilization of an unstable tubular reactor by nonlinear passive output feedback control

HA Franco-de los Reyes, A Schaum, T Meurer… - Journal of Process …, 2020 - Elsevier
The multiple–input multiple–output (MIMO) output feedback (OF) control problem of an
exothermic multi-jacket tubular open-loop unstable reactor is addressed. Over its axial …

Model predictive control of a non-isothermal axial dispersion tubular reactor with recycle

S Khatibi, GO Cassol, S Dubljevic - Computers & Chemical Engineering, 2021 - Elsevier
This paper addresses the model predictive output controller design for a non-isothermal
axial dispersion tubular reactor accounting for energy and mass transport in a recycle …

On the nonlinear dynamics of biomass throated tubular gasification reactors

L Santamaria-Padilla, U Badillo-Hernandez… - Computers & Chemical …, 2022 - Elsevier
The problem of modeling the complex nonlinear dynamics of continuous biomass throated
gasification tubular reactors is addressed. The problem is solved with first principles …

Self-Optimizing Control Strategy for Distributed Parameter Systems

X Tang, C Zhou, H Su, Y Cao, F Pan… - Industrial & …, 2023 - ACS Publications
Real-time optimization (RTO) has been a popular approach for addressing optimal
operation by repetitively optimizing online. However, this approach is impractical for …

Mathematical modeling of tar conversion on downdraft biomass gasification processes

I Donskoy - Biofuels, Bioproducts and Biorefining, 2024 - Wiley Online Library
The article concerns some problems associated with the use of low‐grade fuels for the
production of syngas in fixed‐bed gasifiers. Syngas is typically used to feed internal …

The chemostat reactor: A stability analysis and model predictive control

GO Cassol, CR Koch, S Dubljevic - Journal of Process Control, 2024 - Elsevier
This contribution develops the model predictive control for an unstable chemostat reactor.
Initially, we analyze the system's model—a nonlinear first-order hyperbolic partial integro …

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

HA Franco-de Los Reyes, J Alvarez - Journal of Process Control, 2022 - Elsevier
The problem of robustly stabilizing and estimating the state of an open-loop unstable
continuous exothermic tubular reactor with constrained control is solved with a …

Model predictive control of jacket tubular reactors with a reversible exothermic reaction

L Zhang, J Xie, CR Koch… - Industrial & Engineering …, 2020 - ACS Publications
This article addresses the model predictive controller design for a jacket tubular reactor with
a simple reversible exothermic reaction (A⇌ B). Using energy and mass balance laws, four …

Predicting nonlinear dynamics of a gas-lift oil production system through hybrid decomposition-recurrent neural networks models

GO e Souza, JO Trierweiler, M Farenzena - IFAC-PapersOnLine, 2024 - Elsevier
The present paper introduces an innovative approach integrating recurrent neural networks,
static models, and signal decomposition into base and residual behavior components for …