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Isabela Roxana Birs
Researcher at Technical University of Cluj-Napoca
Publications - 73
Citations - 487
Isabela Roxana Birs is an academic researcher from Technical University of Cluj-Napoca. The author has contributed to research in topics: Control theory & Computer science. The author has an hindex of 9, co-authored 51 publications receiving 288 citations. Previous affiliations of Isabela Roxana Birs include Control Group & Ghent University.
Papers
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Journal ArticleDOI
A Survey of Recent Advances in Fractional Order Control for Time Delay Systems
TL;DR: The purpose of this paper is to provide a state of the art that can be easily used as a basis to familiarize oneself with fractional order tuning strategies targeted for time delayed processes.
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Mathematical modelling with experimental validation of viscoelastic properties in non-Newtonian fluids.
Clara M. Ionescu,Clara M. Ionescu,Clara M. Ionescu,Isabela Roxana Birs,Isabela Roxana Birs,Isabela Roxana Birs,Dana Copot,Dana Copot,Dana Copot,Cristina I. Muresan,Riccardo Caponetto +10 more
TL;DR: The paper proposes a mathematical framework for the use of fractional-order impedance models to capture fluid mechanics properties in frequency-domain experimental datasets and results obtained suggest the proposed model is useful to characterize various degree of viscoelasticity in NN fluids.
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Event-based fractional order control.
Isabela Roxana Birs,Isabela Roxana Birs,Isabela Roxana Birs,Ioana Nascu,Clara-Mihaela Ionescu,Clara-Mihaela Ionescu,Cristina I. Muresan +6 more
TL;DR: In this paper, the authors provide a generalization of event-based control to the field of fractional calculus, combining the benefits brought by the two approaches into an industrial-suitable control strategy.
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A Review of Recent Developments in Autotuning Methods for Fractional-Order Controllers
Cristina I. Muresan,Isabela Roxana Birs,Clara-Mihaela Ionescu,Eva-Henrietta Dulf,Robin De Keyser +4 more
TL;DR: The scientific community has recently seen a fast-growing number of publications tackling the topic of fractional-order controllers in general, with a focus on the fractional order PID.
Journal ArticleDOI
Tuning of fractional order proportional integral/proportional derivative controllers based on existence conditions:
Cristina I. Muresan,Isabela Roxana Birs,Isabela Roxana Birs,Clara-Mihaela Ionescu,Robain De Keyser +4 more
TL;DR: The article shows that given a specific process and open-loop modulus and phase specifications, the gain crossover frequency must be selected such that the process phase fulfills an important condition (design constraint) and the proposed approach ensures that the tuning parameters of the fractional order controller will have a physical meaning.