Recent trends on hybrid modeling for Industry 4.0

J Sansana, MN Joswiak, I Castillo, Z Wang… - Computers & Chemical …, 2021 - Elsevier
The chemical processing industry has relied on modeling techniques for process monitoring,
control, diagnosis, optimization, and design, especially since the third industrial revolution …

Data-based modeling and control of nonlinear process systems using sparse identification: An overview of recent results

F Abdullah, PD Christofides - Computers & Chemical Engineering, 2023 - Elsevier
This paper discusses recent developments in the data-based modeling and control of
nonlinear chemical process systems using sparse identification of nonlinear dynamics …

[HTML][HTML] Advanced predictive control for GRU and LSTM networks

K Zarzycki, M Ławryńczuk - Information Sciences, 2022 - Elsevier
This article is concerned with Model Predictive Control (MPC) algorithms that use Short
Term Memory (LSTM) and Gated Recurrent Unit (GRU) neural networks for prediction. For …

CrystalGPT: Enhancing system-to-system transferability in crystallization prediction and control using time-series-transformers

N Sitapure, JSI Kwon - Computers & Chemical Engineering, 2023 - Elsevier
For prediction and real-time control tasks, machine-learning (ML)-based digital twins are
frequently employed. However, while these models are typically accurate, they are custom …

Machine learning modeling and predictive control of the batch crystallization process

Y Zheng, X Wang, Z Wu - Industrial & Engineering Chemistry …, 2022 - ACS Publications
This work develops a framework for building machine learning models and machine-
learning-based predictive control schemes for batch crystallization processes. We consider …

Process structure-based recurrent neural network modeling for model predictive control of nonlinear processes

Z Wu, D Rincon, PD Christofides - Journal of Process Control, 2020 - Elsevier
In this work, physics-based recurrent neural network (RNN) modeling approaches are
proposed for a general class of nonlinear dynamic process systems to improve prediction …

Introducing hybrid modeling with time-series-transformers: A comparative study of series and parallel approach in batch crystallization

N Sitapure, J Sang-Il Kwon - Industrial & Engineering Chemistry …, 2023 - ACS Publications
Given the hesitance surrounding the direct implementation of black-box tools due to safety
and operational concerns, fully data-driven deep-neural-network (DNN)-based digital twins …

[HTML][HTML] Feature selection-based machine learning modeling for distributed model predictive control of nonlinear processes

T Zhao, Y Zheng, Z Wu - Computers & Chemical Engineering, 2023 - Elsevier
In this work, we develop reduced-order machine learning models using feature selection
methods for distributed model predictive control (DMPC) of nonlinear processes …

[HTML][HTML] Stochastic data-driven model predictive control using gaussian processes

E Bradford, L Imsland, D Zhang… - Computers & Chemical …, 2020 - Elsevier
Nonlinear model predictive control (NMPC) is one of the few control methods that can
handle multivariable nonlinear control systems with constraints. Gaussian processes (GPs) …

Real-time adaptive machine-learning-based predictive control of nonlinear processes

Z Wu, D Rincon, PD Christofides - Industrial & Engineering …, 2019 - ACS Publications
We present a machine learning-based predictive control scheme that integrates an online
update of the recurrent neural network (RNN) models to capture process nonlinear …