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Publications

Journal papers:

2022 (submitted)

  • F. Stoican, J. Culiță, and S. Olaru, “Set-theoretic fault-diagnosis for a real-world two-tank system,” Journal of the Franklin Institute, 2022 (submitted). ISSN: 0016-0032.
    IF: 4.246. Q1-IF (JCR2020) Mathematics, Interdisciplinary Applications – 13/108)
    [BibTeX]
    @article{stoican2022astank,
    author={Stoican, Florin and Culiță, Janetta and Olaru, Sorin},
    journal={{Journal of the Franklin Institute}},
    title={{Set-theoretic fault-diagnosis for a real-world two-tank system}},
    year={2022 (submitted)},
    publisher={Elsevier},
    if={4.246},
    qcat={Q1-IF (JCR2020) Mathematics, Interdisciplinary Applications - 13/108)},
    issn={0016-0032},
    note={Submitted},
    }
  • A. Sperilă, C. Oară, B. D. Ciubotaru, and Ș. Sabău, “Distributed control of descriptor networks: a convex procedure for augmented sparsity,” Ieee transactions on automatic control, 2022 (submitted). ISSN: 0018-9286.
    IF: 6.549. Q1-IF (JCR2020) Automation & Control Systems – 9/63
    [BibTeX]
    @article{sperila2022distributed,
    title={Distributed Control of Descriptor Networks: A Convex Procedure for Augmented Sparsity},
    author={Sperilă, Andrei and Oară, Cristian and Ciubotaru, Bogdan D. and Sabău, Șerban},
    journal={IEEE Transactions on Automatic Control},
    year={2022 (submitted)},
    issn = {0018-9286},
    publisher={IEEE},
    keyword=submitted,
    if={6.549},
    qcat={Q1-IF (JCR2020) Automation \& Control Systems - 9/63},
    note={Submitted.}
    }

2022 (in preparation)

  • F. Stoican, V. Marguet, and I. Prodan, “The application of quasi-interpolants for complexity reduction in motion planning,” Automatica, 2022 (in preparation). ISSN: 0005-1098.
    IF: 6.549. Q1-IF (JCR2020) Automation & Control Systems – 9/63
    [BibTeX]
    @article{splineApprox,
    title={The application of quasi-interpolants for complexity reduction in motion planning},
    author={Stoican, Florin and Marguet, Vincent and Prodan, Ionela},
    journal={{Automatica}},
    year={2022 (in preparation)},
    publisher={Elsevier},
    if={6.549},
    qcat={Q1-IF (JCR2020) Automation \& Control Systems - 9/63},
    issn={0005-1098},
    }
  • T. Do Huu, I. Prodan, F. Nicolau, and F. Stoican, “Flatness in motion planning,” Annual reviews in control, 2022 (in preparation). ISSN: 1367-5788.
    IF: 4.987. Q1-IF (JCR2020) Automation & Control Systems – 12/63
    [BibTeX]
    @article{do2022flatness,
    title={Flatness in motion planning},
    author={Do Huu, Thinh and Prodan, Ionela and Nicolau, Florentina and Stoican, Florin},
    journal={Annual Reviews in Control},
    year={2022 (in preparation)},
    issn = {1367-5788},
    publisher={Elsevier},
    if={4.987},
    qcat={Q1-IF (JCR2020) Automation \& Control Systems - 12/63},
    }

2022

  • T. C. Ionescu, O. V. Iftime, and I. Necoara, “Model reduction with pole-zero placement and high order moment matching,” Automatica, vol. 138, p. 110140, 2022. doi:10.1016/j.automatica.2021.110140 . ISSN: 0005-1098.
    IF: 6.15. Q1-IF (JCR2020) Automation & Control Systems – 9/63
    WOS: 000788851300017.
    [BibTeX] [Abstract]
    In this paper, we calculate a low order model of a linear system of large dimension, that matches a set of high order moments of the transfer function and achieves pole-zero placement constraints. The model satisfying all the constraints simultaneously is selected from a family of parametrized reduced order models. The parameters are computed solving an explicit linear algebraic system. Furthermore, we construct the Loewner matrices from the given data and the imposed pole-zero and first order moment constraints. The resulting approximations achieve a trade-off between good norm approximation and the preservation of the dynamics of the given system in a region of interest. The theory is illustrated on the academic example of a cart controlled by a double pendulum and the practical example of a CD player.
    @article{ionescu2020model,
    title={Model reduction with pole-zero placement and high order moment matching},
    author={Ionescu, Tudor C and Iftime, Orest V and Necoara, Ion},
    journal={Automatica},
    volume={138},
    pages={110140},
    doi={10.1016/j.automatica.2021.110140},
    wos={000788851300017},
    year={2022},
    publisher={Elsevier},
    if={6.15},
    qcat={Q1-IF (JCR2020) Automation \& Control Systems - 9/63},
    issn={0005-1098},
    abstract={In this paper, we calculate a low order model of a linear system of large dimension, that matches a set of high order moments of
    the transfer function and achieves pole-zero placement constraints. The model satisfying all the constraints simultaneously is
    selected from a family of parametrized reduced order models. The parameters are computed solving an explicit linear algebraic
    system. Furthermore, we construct the Loewner matrices from the given data and the imposed pole-zero and first order moment
    constraints. The resulting approximations achieve a trade-off between good norm approximation and the preservation of the
    dynamics of the given system in a region of interest. The theory is illustrated on the academic example of a cart controlled by
    a double pendulum and the practical example of a CD player.}
    }

2021

  • A. Sperilă, C. Oară, and B. Ciubotaru, “H2 Output Feedback Control of Differential-Algebraic Systems,” IEEE Control Systems Letters (L-CSS), vol. 6, pp. 542-547, 2021. doi:10.1109/LCSYS.2021.3083399 . ISSN: 2475-1456.
    Not yet indexed, the journal is not old enough.
    WOS: 000668835800008.
    [BibTeX] [Abstract]
    By employing the properties of centered realizations, we devise a modified version of the dual Riccati equation approach to optimal H-2 control for differential-algebraic systems that is guaranteed to be more computationally efficient and numerically accurate than other methods from literature. Moreover, we show that if the optimal controller has an improper transfer function matrix, then all controllers which ensure a finite H(2) norm will share this property.
    @article{sperila2021h2,
    author={Sperilă, Andrei-Ioan and Oară, Cristian and Ciubotaru, Bogdan},
    journal={{IEEE Control Systems Letters (L-CSS)}},
    title={{H2 Output Feedback Control of Differential-Algebraic Systems}},
    year={2021},
    Volume = {6},
    Pages = {542-547},
    Abstract = {By employing the properties of centered realizations, we devise a modified version of the dual Riccati equation approach to optimal H-2 control for differential-algebraic systems that is guaranteed to be more computationally efficient and numerically accurate than other methods from literature. Moreover, we show that if the optimal controller has an
    improper transfer function matrix, then all controllers which ensure a finite H(2) norm will share this property.},
    DOI = {10.1109/LCSYS.2021.3083399},
    wos= {000668835800008},
    ISSN = {2475-1456},
    qcat={Not yet indexed, the journal is not old enough.},
    }
  • A. Sperilă, B. Ciubotaru, and C. Oară, “The optimal H2 controller for generalized discrete-time systems,” Automatica, vol. {133}, 2021. ISSN: 0005-1098.
    IF: 5.944. Q1-IF (JCR2020) Automation & Control Systems – 10/63
    WOS: 000702835200041.
    [BibTeX] [Abstract]
    We consider the H2 optimal control problem for a discrete-time system whose transfer function matrix may be improper and we retrieve the optimal controller through a numerically tractable algorithm. Both the optimal controller and the value of the minimal closed-loop norm are given in terms of a particular type of realization and via the solutions of two Riccati equations.
    @article{sperila2021h2o,
    author={Sperilă, Andrei-Ioan and Ciubotaru, Bogdan and Oară, Cristian},
    journal={{Automatica}},
    title={{The optimal H2 controller for generalized discrete-time systems}},
    year={2021},
    publisher={Elsevier},
    if={5.944},
    qcat={Q1-IF (JCR2020) Automation \& Control Systems - 10/63},
    issn={0005-1098},
    Volume = {{133}},
    wos={000702835200041},
    abstract={We consider the H2 optimal control problem for a discrete-time system
    whose transfer function matrix may be improper and we retrieve the
    optimal controller through a numerically tractable algorithm. Both the
    optimal controller and the value of the minimal closed-loop norm are
    given in terms of a particular type of realization and via the solutions
    of two Riccati equations.}
    }

2020

  • D. Ioan, I. Prodan, S. Olaru, F. Stoican, and S. Niculescu, “Mixed-integer programming in motion planning,” Annual reviews in control, vol. 51, pp. 65-87, 2020. doi:10.1016/j.arcontrol.2020.10.008 . ISSN: 1367-5788.
    IF: 6.091. Q1-IF (JCR2020) Automation & Control Systems – 9/63
    WOS: 000664938900006.
    [BibTeX] [Abstract]
    This paper presents a review of past and present results and approaches in the area of motion planning using MIP (Mixed-integer Programming). Although in the early 2000s MIP was still seen with reluctance as method for solving motion planning-related problems, nowadays, due to increases in computational power and theoretical advances, its extensive modeling capabilities and versatility are coming to the fore and enjoy increased application and appreciation. This class of control problems involves, essentially, either a selection from a limited number of alternatives or a constrained optimization problem over a non-convex domain. In both situations, MIP has proven to be an efficient modeling technique as it will be shown in the present review paper. Furthermore, an emphasis is laid on the existing alternatives for implementation and on various experimental validations documented in the literature.
    @article{ioan2020mixed,
    title={Mixed-integer programming in motion planning},
    author={Ioan, Daniel and Prodan, Ionela and Olaru, Sorin and Stoican, Florin and Niculescu, Silviu-Iulian},
    journal={Annual Reviews in Control},
    year={2020},
    issn = {1367-5788},
    publisher={Elsevier},
    keyword=accepted,
    if={6.091},
    qcat={Q1-IF (JCR2020) Automation \& Control Systems - 9/63},
    doi={10.1016/j.arcontrol.2020.10.008},
    pages={65-87},
    volume={51},
    abstract={This paper presents a review of past and present results and approaches in the area of motion planning using MIP (Mixed-integer Programming). Although in the early 2000s MIP was still seen with reluctance as method for solving motion planning-related problems, nowadays, due to increases in computational power and theoretical advances, its extensive modeling capabilities and versatility are coming to the fore and enjoy increased application and appreciation. This class of control problems involves, essentially, either a selection from a limited number of alternatives or a constrained optimization problem over a non-convex domain. In both situations, MIP has proven to be an efficient modeling technique as it will be shown in the present review paper. Furthermore, an emphasis is laid on the existing alternatives for implementation and on various experimental validations documented in the literature.},
    wos={000664938900006}
    }

Conference proceedings:

2023 (submitted)

  • T. Nicu, F. Stoican, and I. Prodan, “Local minima avoidance in a polyhedral potential field motion planning problem,” in Proceedings of the 13th European Control Conference (ECC’23), 2023 (submitted).
    [BibTeX]
    @inproceedings{nicu2022local,
    author={Nicu, Theodor-Gabriel and Stoican, Florin and Prodan, Ionela},
    booktitle={{Proceedings of the 13th European Control Conference (ECC'23)}},
    title={{Local minima avoidance in a polyhedral potential field motion planning problem}},
    year={2023 (submitted)},
    volume={},
    number={},
    % pages={260-265},
    }

2022

  • F. Stoican, T. Nicu, and I. Prodan, “A mixed-integer MPC with polyhedral potential field cost for collision avoidance,” in Proceedings of the American Control Conference (ACC’22), 2022, pp. 2039-2045.
    [BibTeX]
    @inproceedings{stoican2022polyhedral,
    author={Stoican, Florin and Nicu, Theodor-Gabriel and Prodan, Ionela},
    booktitle={{Proceedings of the American Control Conference (ACC'22)}},
    title={{A mixed-integer MPC with polyhedral potential field cost for collision avoidance}},
    year={2022},
    volume={},
    number={},
    pages={2039-2045},
    }
  • T. Nicu, F. Stoican, and I. Prodan, “Polyhedral potential field constructions for obstacle avoidance in a receding horizon formulation,” in Proceedings of the 18th IFAC Workshop on Control Applications of Optimization (CAO’22), 2022, pp. 260-265.
    [BibTeX]
    @inproceedings{nicu2022polyhedral,
    author={Nicu, Theodor-Gabriel and Stoican, Florin and Prodan, Ionela},
    booktitle={{Proceedings of the 18th IFAC Workshop on Control Applications of Optimization (CAO'22)}},
    title={{Polyhedral potential field constructions for obstacle avoidance in a receding horizon formulation}},
    year={2022},
    volume={},
    number={},
    pages={260-265},
    }
  • T. Do Huu, F. Nicolau, F. Stoican, and I. Prodan, “Tracking control for a flat system under disturbances: a fixed-wing UAV example,” in Proceedings of the 18th IFAC Workshop on Control Applications of Optimization (CAO’22), 2022, pp. 412-417.
    [BibTeX]
    @inproceedings{do2022tracking,
    author={Do Huu, Thinh and Nicolau, Florentina and Stoican, Florin and Prodan, Ionela},
    booktitle={{Proceedings of the 18th IFAC Workshop on Control Applications of Optimization (CAO'22)}},
    title={{Tracking control for a flat system under disturbances: a fixed-wing UAV example}},
    year={2022},
    volume={},
    number={},
    pages={412-417},
    }

2021

  • M. Pătraşcu and L. A. Vișcoțel, “Design of Stabilizing Predictor-based Controller for Closed Loop Traffic Control with Real-Coded Genetic Algorithms,” in European Control Conference, Rotterdam, Netherlands, 2021, p. 23–28. doi:10.23919/ECC54610.2021.9654964 .
    WOS: 000768455200004.
    [BibTeX]
    @inproceedings{patrascu2021design,
    title={{Design of Stabilizing Predictor-based Controller for Closed Loop Traffic Control with Real-Coded Genetic Algorithms}},
    author={Pătraşcu, Monica and Vișcoțel, Laura Anca},
    booktitle={{European Control Conference, Rotterdam, Netherlands}},
    year={2021},
    pages={23--28},
    doi={10.23919/ECC54610.2021.9654964},
    wos={000768455200004},
    }
  • M. Pătraşcu, “Smith Predictor Approximation for Industrial Control Applications with Genetic Algorithms,” in International Conference on Applied Artificial Intelligence (ICAPAI’21), 2021, pp. 1-6. doi:10.1109/ICAPAI49758.2021.9462066 .
    [BibTeX]
    @inproceedings{patrascu2021smith,
    author={Pătraşcu, Monica},
    booktitle={{International Conference on Applied Artificial Intelligence (ICAPAI'21)}},
    title={{Smith Predictor Approximation for Industrial Control Applications with Genetic Algorithms}},
    year={2021},
    volume={},
    number={},
    pages={1-6},
    doi={10.1109/ICAPAI49758.2021.9462066}
    }
  • F. Stoican and Ș. Mihai, “Observations on the complexity of the explicit MPC,” in 60th IEEE Conference on Decision and Control (CDC’21), 2021, pp. 2551-2556. doi:10.1109/CDC45484.2021.9683256 .
    WOS: 000781990302049.
    [BibTeX]
    @inproceedings{stoican2021explicit,
    author={Stoican, Florin and Mihai, Ștefan-Sergiu},
    booktitle={{60th IEEE Conference on Decision and Control (CDC'21)}},
    title={{Observations on the complexity of the explicit MPC}},
    year={2021},
    pages={2551-2556},
    doi={10.1109/CDC45484.2021.9683256},
    wos={000781990302049},
    }
  • S. Olaru, F. Stoican, and S. Kheawhom, “Challenges and opportunities for the control of Energy Storage Systems. A focus on the Zinc-Air batteries,” in IEEE AFRICON, 2021, pp. 1-6. doi:10.1109/AFRICON51333.2021.9571020 .
    [BibTeX]
    @inproceedings{9571020,
    author={Olaru, Sorin and Stoican, Florin and Kheawhom, Soorathep},
    booktitle={{IEEE AFRICON}},
    title={{Challenges and opportunities for the control of Energy Storage Systems. A focus on the Zinc-Air batteries}},
    year={2021},
    volume={},
    number={},
    pages={1-6},
    doi={10.1109/AFRICON51333.2021.9571020}}
  • T. Do Huu, I. Prodan, and F. Stoican, “Analysis of Alternative Flat Representations of a UAV for Trajectory Generation and Tracking,” in 25th International Conference on System Theory, Control and Computing, 2021, pp. 58-63. doi:10.1109/ICSTCC52150.2021.9607073 .
    [BibTeX]
    @inproceedings{huu2021analysis,
    author={Do Huu, Thinh and Prodan, Ionela and Stoican, Florin},
    booktitle={{25th International Conference on System Theory, Control and Computing}},
    title={{Analysis of Alternative Flat Representations of a UAV for Trajectory Generation and Tracking}},
    year={2021},
    volume={},
    number={},
    pages={58-63},
    doi={10.1109/ICSTCC52150.2021.9607073},
    }

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