Parameter estimation using relay feedback

K Dharmalingam, T Thangavelu - Reviews in Chemical Engineering, 2019 - degruyter.com
In process industries, closed-loop step and closed-loop relay feedback tests are popularly
used for estimating model parameters. In this paper, different methods available in the …

Modeling and control of non-square MIMO system using relay feedback

D Kalpana, T Thyagarajan, N Gokulraj - ISA transactions, 2015 - Elsevier
This paper proposes a systematic approach for the modeling and control of non-square
MIMO systems in time domain using relay feedback. Conventionally, modeling, selection of …

Smith delay compensator for multivariable non-square systems with multiple time delays

AS Rao, M Chidambaram - Computers & chemical engineering, 2006 - Elsevier
The classical multivariable Smith delay compensator is extended to multivariable non-
square systems with multiple time delays where there is more number of inputs than the …

Centralized PI/PID controllers for nonsquare systems with RHP zeros

KLN Sarma, M Chidambaram - Journal of the Indian Institute of …, 2005 - journal.iisc.ac.in
Two centralized controller-tuning methods, Davison's method [Multivariable tuning
regulators: The feed forward and robust control of general servo mechanism problem, IEEE …

Centralized PI/PID controller design for multivariable processes

Y Shen, Y Sun, W Xu - Industrial & Engineering Chemistry …, 2014 - ACS Publications
A novel centralized controller design method is proposed for multivariable systems, whether
square or nonsquare processes. First, the relationship between equivalent transfer function …

[HTML][HTML] A new set of multivariable predictive control algorithms for time-delayed nonsquare systems of different domains: A minimum-energy examination

WP Hunek, T Feliks - Applied Energy, 2025 - Elsevier
A new approach to the minimum-energy design of stochastic inverse model control-oriented
predictive control algorithms dedicated to the multivariable physical systems is proposed in …

Nonsquare multivariable chemical processes: a hybrid centralized control proposal

J Revelo, M Herrera, O Camacho… - Industrial & Engineering …, 2020 - ACS Publications
This paper presents a hybrid centralized control scheme for a nonsquare multivariable
process. The proposed approach combines the Smith predictor, gain-scheduling …

A control philosophy for complex Non-square chemical process

V Sujatha, RC Panda - Journal of Loss Prevention in the Process Industries, 2022 - Elsevier
All the complex non-square chemical processes may have thousands of measurement and
control loops and these loops should be paired properly. A term control philosophy decides …

Decoupling internal model control for non-square processes based on equivalent transfer function

Q Jin, B Jiang, Q Wang, G Shan - Transactions of the …, 2014 - journals.sagepub.com
A novel design method of decoupling internal model control is proposed for non-square
processes with multiple time delays that are often encountered in complicated industrial …

Analytical design 2 DOF IMC control based on inverted decoupling for non‐square systems with time delay

Q Jin, X Du, Q Wang, L Liu - The Canadian journal of chemical …, 2016 - Wiley Online Library
Non‐square systems which have more inputs than outputs are difficult to control because of
their special structure. In this article, inverted decoupling is extended to non‐square systems …