[HTML][HTML] Model reduction by moment matching with preservation of global stability for a class of nonlinear models

MF Shakib, G Scarciotti, AY Pogromsky, A Pavlov… - Automatica, 2023 - Elsevier
Abstract Model reduction by time-domain moment matching naturally extends to nonlinear
models, where the notion of moments has a local nature stemming from the center manifold …

Closed-Loop Interpolation by Moment Matching for Linear and Nonlinear Systems

A Moreschini, A Astolfi - IEEE Transactions on Automatic …, 2024 - ieeexplore.ieee.org
The relaxation of strong stability conditions on the system to be interpolated is one of the
open problems in interconnection-based interpolation by moment matching. To address this …

Balanced truncation for model reduction of biological oscillators

A Padoan, F Forni, R Sepulchre - Biological cybernetics, 2021 - Springer
Abstract Model reduction is a central problem in mathematical biology. Reduced order
models enable modeling of a biological system at different levels of complexity and the …

Parametrization of Linear Controllers for p-Dominance

Y Sato, Y Kawano, N Wada - IEEE Control Systems Letters, 2023 - ieeexplore.ieee.org
Recently, the concept of p-dominance has been proposed as a unified framework to study
rich behaviors of nonlinear systems. In this letter, we consider finding a set of linear dynamic …

Circuit model reduction with scaled relative graphs

T Chaffey, A Padoan - 2022 IEEE 61st Conference on Decision …, 2022 - ieeexplore.ieee.org
Continued fractions are classical representations of complex objects (for example, real
numbers) as sums and inverses of simpler objects (for example, integers). The analogy in …

Optimal model reduction by time-domain moment matching for Lur'e-type models

F Shakib, G Scarciotti, M Jungers… - … on Automatic Control, 2024 - ieeexplore.ieee.org
This article considers the problem of model reduction for Lur'e-type models consisting of a
feedback interconnection between linear dynamics and static nonlinearities. We propose an …

Exact decomposition of optimal control problems via simultaneous block diagonalization of matrices

A Nazerian, K Bhatta… - IEEE open journal of …, 2022 - ieeexplore.ieee.org
In this paper, we consider optimal control problems (OCPs) applied to large-scale linear
dynamical systems with a large number of states and inputs. We attempt to reduce such …

Decoupling optimal control problems via simultaneous block diagonalization of matrices

A Nazerian, F Sorrentino - 2022 IEEE 61st Conference on …, 2022 - ieeexplore.ieee.org
In this paper, we consider optimal control problems (OCPs) applied to large-scale linear
dynamical systems with many states and many inputs and a quadratic objective function. We …

Feedback control design for closed-loop oscillations via dominant system theory

W Che - 2023 - repository.cam.ac.uk
Stable oscillations, arising from nonlinear non-equilibrium dynamics, are an important class
of behavior in both nature and engineering. For engineering applications like robotic …

[PDF][PDF] Data-driven modeling and complexity reduction for nonlinear systems with stability guarantees

MF Shakib - 2022 - research.tue.nl
Mathematical modeling is an enabling tool for the design and analysis of engineering
systems. This thesis focuses on the data-driven modeling of nonlinear systems and the …