Modelling and estimation in lithium-ion batteries: A literature review

M Martí-Florences, A Cecilia, R Costa-Castelló - Energies, 2023 - mdpi.com
Lithium-ion batteries are widely recognised as the leading technology for electrochemical
energy storage. Their applications in the automotive industry and integration with renewable …

Identifiability implies robust, globally exponentially convergent on-line parameter estimation

L Wang, R Ortega, A Bobtsov… - International Journal of …, 2023 - Taylor & Francis
In this paper we propose a new parameter estimator that ensures global exponential
convergence of linear regression models requiring only the necessary assumption of …

Observability is sufficient for the design of globally exponentially stable state observers for state-affine nonlinear systems

L Wang, R Ortega, A Bobtsov - Automatica, 2023 - Elsevier
In this paper we are interested in the problem of state observation of state-affine nonlinear
systems. It is well-known that observability of the system is a necessary assumption for the …

A reduced-order adaptive state observer for DC–DC converters with unknown constant power load

W He, X Wang, MM Namazi, W Zhou… - Control Engineering …, 2024 - Elsevier
In this paper, main objective is to develop a reduced-order adaptive state observer (RASO)
for a large class of DC–DC converters with constant power load (CPL) to estimate their …

A new least squares parameter estimator for nonlinear regression equations with relaxed excitation conditions and forgetting factor

R Ortega, JG Romero, S Aranovskiy - Systems & Control Letters, 2022 - Elsevier
In this note a new high performance least squares parameter estimator is proposed. The
main features of the estimator are:(i) global exponential convergence is guaranteed for all …

An adaptive observer for uncertain linear time-varying systems with unknown additive perturbations

A Pyrkin, A Bobtsov, R Ortega, A Isidori - Automatica, 2023 - Elsevier
In this paper we are interested in the problem of adaptive state observation of linear time-
varying (LTV) systems where the system and the input matrices depend on unknown time …

Generation of new exciting regressors for consistent online estimation of unknown constant parameters

A Bobtsov, B Yi, R Ortega… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The problem of estimating constant parameters from a standard vector linear regression
equation in the absence of sufficient excitation in the regressor is addressed. The first step to …

Adaptive sensorless control for buck converter with constant power load

W He, Y Shang, MM Namazi, R Ortega - Control Engineering Practice, 2022 - Elsevier
The existing results mainly focus on the full-information control for converters with constant
power load (CPL). More precisely, it is assumed that all of the states of the systems should …

Reduced-order nonlinear observers via contraction analysis and convex optimization

B Yi, R Wang, IR Manchester - IEEE Transactions on Automatic …, 2021 - ieeexplore.ieee.org
In this article, we propose a new approach to design globally convergent reduced-order
observers for nonlinear control systems via contraction analysis and convex optimization …

Adaptive state estimation of state-affine systems with unknown time-varying parameters

A Bobtsov, R Ortega, B Yi… - International Journal of …, 2022 - Taylor & Francis
In this paper we provide two significant extensions to the recently developed parameter
estimation-based observer design technique for state-affine systems. First, we consider the …