Variable Time Step Algorithm for Transient Response Analysis for Control and Optimization

This work considers an optimization problem based on step response characteristics. We lay a foundation for it by designing a rapid transient response analysis algorithm with variable time steps. This method applies to linear ordinary differential equations with real order. Numerical tests of the al...

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Main Authors: Igor Reznichenko, Primož Podržaj, Aljoša Peperko
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/8/12/710
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author Igor Reznichenko
Primož Podržaj
Aljoša Peperko
author_facet Igor Reznichenko
Primož Podržaj
Aljoša Peperko
author_sort Igor Reznichenko
collection DOAJ
description This work considers an optimization problem based on step response characteristics. We lay a foundation for it by designing a rapid transient response analysis algorithm with variable time steps. This method applies to linear ordinary differential equations with real order. Numerical tests of the algorithm in the integer case show significant improvement even for higher order systems. This suggests a new method for acquiring step response characteristics for the fractional order case for which we have constructed an explicit expression of the inverse Laplace transform.
format Article
id doaj-art-bad0eb8bbf6949a58588604da83671f6
institution Kabale University
issn 2504-3110
language English
publishDate 2024-11-01
publisher MDPI AG
record_format Article
series Fractal and Fractional
spelling doaj-art-bad0eb8bbf6949a58588604da83671f62024-12-27T14:27:04ZengMDPI AGFractal and Fractional2504-31102024-11-0181271010.3390/fractalfract8120710Variable Time Step Algorithm for Transient Response Analysis for Control and OptimizationIgor Reznichenko0Primož Podržaj1Aljoša Peperko2Faculty of Mechanical Engineering, University of Ljubljana, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, 1000 Ljubljana, SloveniaFaculty of Mechanical Engineering, University of Ljubljana, 1000 Ljubljana, SloveniaThis work considers an optimization problem based on step response characteristics. We lay a foundation for it by designing a rapid transient response analysis algorithm with variable time steps. This method applies to linear ordinary differential equations with real order. Numerical tests of the algorithm in the integer case show significant improvement even for higher order systems. This suggests a new method for acquiring step response characteristics for the fractional order case for which we have constructed an explicit expression of the inverse Laplace transform.https://www.mdpi.com/2504-3110/8/12/710control theoryalgorithmsstep response analysisfractional order systemsinverse Laplace transform
spellingShingle Igor Reznichenko
Primož Podržaj
Aljoša Peperko
Variable Time Step Algorithm for Transient Response Analysis for Control and Optimization
Fractal and Fractional
control theory
algorithms
step response analysis
fractional order systems
inverse Laplace transform
title Variable Time Step Algorithm for Transient Response Analysis for Control and Optimization
title_full Variable Time Step Algorithm for Transient Response Analysis for Control and Optimization
title_fullStr Variable Time Step Algorithm for Transient Response Analysis for Control and Optimization
title_full_unstemmed Variable Time Step Algorithm for Transient Response Analysis for Control and Optimization
title_short Variable Time Step Algorithm for Transient Response Analysis for Control and Optimization
title_sort variable time step algorithm for transient response analysis for control and optimization
topic control theory
algorithms
step response analysis
fractional order systems
inverse Laplace transform
url https://www.mdpi.com/2504-3110/8/12/710
work_keys_str_mv AT igorreznichenko variabletimestepalgorithmfortransientresponseanalysisforcontrolandoptimization
AT primozpodrzaj variabletimestepalgorithmfortransientresponseanalysisforcontrolandoptimization
AT aljosapeperko variabletimestepalgorithmfortransientresponseanalysisforcontrolandoptimization