Multi‐rate observer design for process monitoring using asynchronous inter‐sample output predictions

C Ling, C Kravaris - AIChE Journal, 2017 - Wiley Online Library
In this article, the problem of observer design in linear multi‐output systems with
asynchronous sampling is addressed. The proposed multi‐rate observer is based on a …

Multi-rate observer design using asynchronous inter-sample output predictions

C Ling, C Kravaris - 2017 American Control Conference (ACC), 2017 - ieeexplore.ieee.org
In this paper, the problem of observer design in linear multi-output systems with
asynchronous sampling is addressed. The proposed multi-rate observer is based on a …

A dead time compensation approach for multirate observer design with large measurement delays

C Ling, C Kravaris - AIChE Journal, 2019 - Wiley Online Library
In our previous work, we developed a multirate observer design method in linear systems
with asynchronous sampling based on a Luenberger observer design coupled with inter …

Multi-rate sampled-data observer design for nonlinear systems with asynchronous and delayed measurements

C Ling, C Kravaris - 2019 American Control Conference (ACC), 2019 - ieeexplore.ieee.org
In our previous work, we developed a multi-rate sampled-data observer design method in
nonlinear systems with asynchronous sampling. In this article, possible measurement delays …

Nonlinear observer design for process monitoring

N Kazantzis, C Kravaris, RA Wright - Industrial & engineering …, 2000 - ACS Publications
The present work proposes a systematic nonlinear observer design framework for process
monitoring. The objective is to accurately monitor key process variables associated with …

Distributed state estimation for a class of nonlinear processes based on high-gain observers

X Yin, J Liu - Chemical Engineering Research and Design, 2020 - Elsevier
In this work, we treat the problem of state estimation for a class of nonlinear processes, and
a distributed high-gain observer design is proposed to provide estimates of the full state of …

Multirate sampled-data observer design based on a continuous-time design

C Ling, C Kravaris - IEEE Transactions on Automatic Control, 2019 - ieeexplore.ieee.org
A multirate sampled-data observer for nonlinear systems under asynchronous sampling is
developed in this paper. The proposed multirate observer is based on a continuous-time …

Early lumping observer design and sensor placement for transport-reaction systems

IFY Tello, AV Wouwer, D Coutinho - Journal of Process Control, 2022 - Elsevier
This paper deals with the observer design problem for a class of one-dimensional multi-
species transport-reaction systems satisfying sector bounded nonlinearities and considering …

A robust nonlinear observer for state variables estimation in multi-input multi-output chemical reactors

B Daaou, A Mansouri, M Bouhamida… - International Journal of …, 2008 - degruyter.com
In this paper we tackle the on-line estimation of state variables in MIMO continuous stirred
chemical reactor (CSTR) using a nonlinear observer. We prove the asymptotic stability of the …

Robust state estimation for repetitive operating mode process: Application to sequencing batch reactors

R Aguilar-Lopez, R Martinez-Guerra - Chemical Engineering Journal, 2007 - Elsevier
The issue of this paper is related with the on-line state estimation of a class of sequencing
batch reactors (SBR). This operating mode of SBR can be analyzed as a repetitive process …