Model reduction of neutral linear and nonlinear time-invariant time-delay systems with discrete and distributed delays

G Scarciotti, A Astolfi - IEEE Transactions on Automatic Control, 2015 - ieeexplore.ieee.org
The problem of model reduction by moment matching for linear and nonlinear differential
time-delay systems is studied. The class of models considered includes neutral differential …

Order reduction in linear dynamical systems by using improved balanced realization technique

AK Prajapati, R Prasad - Circuits, Systems, and Signal Processing, 2019 - Springer
In this article, a new model order reduction scheme is proposed for the simplification of large-
scale linear dynamical models. The proposed technique is based on the balanced …

Model reduction of discrete time-delay systems based on Charlier polynomials and high-order Krylov subspaces

KL Xu, YL Jiang, Z Li, L Li - Linear Algebra and its Applications, 2023 - Elsevier
In this paper, we present an efficient model reduction method for discrete time-delay systems
based on the expansions of systems under Charlier polynomials. Making full use of the …

Optimization of the Norm for Single-Delay Systems, With Application to Control Design and Model Approximation

MA Gomez, AV Egorov, S Mondié… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
We propose a novel approach for the optimization of the H 2 norm for time-delay systems,
grounded in its characterization in terms of the delay Lyapunov matrix. We show how the …

Balanced truncation for discrete time-delay systems via the interpretation of system energy

X Wang, G Cheng - Journal of the Franklin Institute, 2022 - Elsevier
In this paper, the balanced truncation method is investigated for discrete time-delay systems.
We show that the energy associated with the system controllability and observability can be …

High-order Krylov subspace model order reduction methods for bilinear time-delay systems

GY Cheng, Z Miao, YL Jiang - Systems & Control Letters, 2024 - Elsevier
Abstract Model order reduction methods via high-order Krylov subspace for bilinear time-
delay systems are developed in this paper. The proposed methods are based on the …

Model order reduction for discrete time-delay systems based on Laguerre function expansion

X Wang, K Xu, L Li - Linear Algebra and its Applications, 2024 - Elsevier
We investigate model order reduction for discrete time-delay systems via orthogonal
polynomial expansion in the frequency domain. The transfer function of systems is …

Model order reduction for linear time delay systems: a delay-dependent approach based on energy functionals

SN Lordejani, B Besselink, A Chaillet, N van de Wouw - Automatica, 2020 - Elsevier
This paper proposes a model order reduction technique for asymptotically stable linear time
delay systems with point-wise delays. The presented delay-dependent approach, which can …

Model order reduction of bilinear time-delay systems

IV Gosea, IP Duff, P Benner… - 2019 18th European …, 2019 - ieeexplore.ieee.org
In this paper, we present a novel method for approximating bilinear time-delay systems by
bilinear systems with no delay. This is performed by means of matching some input-output …

Laguerre functions approximation for model reduction of second order time-delay systems

X Wang, Y Jiang, X Kong - Journal of the Franklin Institute, 2016 - Elsevier
This paper presents a Laguerre-based model reduction method for time-delay systems,
which naturally retains the second-order-structure of original systems. We expand time …