Model-free extremum seeking control of bioprocesses: A review with a worked example

L Dewasme, A Vande Wouwer - Processes, 2020 - mdpi.com
Uncertainty is a common feature of biological systems, and model-free extremum-seeking
control has proved a relevant approach to avoid the typical problems related to model-based …

Improved Gradient Estimation for Fast Extremum Seeking: A Parametric Proportional-Integral Observer-Based Approach

W Liu, X Huo, K Ma, W Sun - IEEE Transactions on Systems …, 2023 - ieeexplore.ieee.org
In this article, a complete parametric proportional-integral observer (PPIO)-based approach
is proposed to improve the performance of gradient estimation for the fast extremum seeking …

Nonlinear innovation identification of ship response model via the hyperbolic tangent function

C Song, X Zhang, G Zhang - … , Part I: Journal of Systems and …, 2021 - journals.sagepub.com
This research is concerned with the problem of parameter identification for ship response
model. A novel nonlinear innovation–based algorithm is proposed by use of the hyperbolic …

Adaptive amplitude fast proportional integral phasor extremum seeking control for a class of nonlinear system

KT Atta, M Guay - Journal of Process Control, 2019 - Elsevier
In this paper, we present a modification of the fast phasor extremum-seeking control for the
fast optimization of a class of Wiener-Hammerstein nonlinear dynamical systems. The …

Performance improvement in fast extremum seeking with adaptive phase compensator and high-gain optimizer

W Liu, X Huo, K Ma, S Chen - IEEE Transactions on Systems …, 2021 - ieeexplore.ieee.org
In this article, an adaptive phase compensator and a high-gain optimizer are proposed for
the fast extremum-seeking (ES) scheme acting on a Hammerstein plant. Unlike the widely …

Extremum control of linear systems based on output feedback

S Michalowsky, C Ebenbauer - 2016 IEEE 55th Conference on …, 2016 - ieeexplore.ieee.org
In this paper we consider the problem of steering a linear system to an unknown setpoint
that is defined as the minimizer of an optimization problem. We give a gradient-based …

A switched extremum seeking control without steady-state oscillation using gradient-based adaptive-amplitude perturbation

M Chu, X Huo, K Ma, W Liu - ISA transactions, 2023 - Elsevier
To enhance the steady-state and dynamic performance of the extremum seeking control
(ESC), a switched ESC scheme is proposed in this paper. Firstly, to solve nonconvex …

Experimental implementation of extremum-seeking control: Gas fuel efficiency at electrical generation under power requirements

R Femat, J Torres-Mireles, N Vázquez-Nava - Journal of Process Control, 2024 - Elsevier
A current challenge stands for operating the emergency power system (EPS) that involves
the challenge of supplying sufficient electrical energy at same time the fuel consumption is …

An extremum-seeking control method driven by input–output correlation

TI Salsbury, JM House, CF Alcala, Y Li - Journal of Process Control, 2017 - Elsevier
This paper presents a new extremum-seeking controller (ESC) derived from a statistical
interpretation of conventional ESC. The proposed ESC replaces the gradient feedback …

Model‐guided extremum seeking–case studies

Y Tan, X Chen, Y Hua, Q Tan - International Journal of …, 2022 - Wiley Online Library
In practice, data‐driven control and optimization techniques are applied to address
problems in engineering systems of which the model is either unavailable or so complicated …