Dr. Roman Geiselhart

Forschung

  • Optimierung
  • (Verteilte) Modellprädiktive Regelung
  • Vernetzte Systeme
  • Konstruktive Lyapunovmethoden
  • Nichtlineare Regelung

Organisierte Tagungen

  • GMA Fachausschuss 1.50 "Grundlagen vernetzer Systeme" 11.-13.3.2019, Reisensburg Ulm, (mit K. Graichen Uni Ulm), link
  • GAMM, 90th Annual Meeting, Section 20 "Dynamics and Control", 18.-22.2.2019, Wien, (mit S. Lucia TU Berlin), link
  • GMA Fachausschuss 1.50 "Grundlagen vernetzer Systeme" 14.-16.5.2018, Reisensburg Ulm, (mit K. Graichen Uni Ulm), link

Betreute Abschlussarbeiten

  • Modellbasierte Regelung eines Motorkühlsystems, T. Schick, 2018

ausgeschriebene aktuelle Themen

Veröffentlichungen

Journal articles

  1. N Noroozi, R Geiselhart, S Mousavi, R Postoyan, F Wirth.
    Integral input-to-state stability of networked control systems.
    to be published in IEEE Transactions on Automatic Control 2019 (provisionally accepted)
  2. N Noroozi, R Geiselhart, L Grüne, BS Rüffer, FR Wirth.
    Non-conservative discrete-time ISS small-gain conditions for closed sets.
    IEEE Transactions on Automatic Control 63 (5), pp. 1231-1242, 2018 .
    arxiv preprint , Journal page
  3. R Geiselhart, N Noroozi.
    Equivalent types of ISS Lyapunov functions for discontinuous discrete-time systems.
    Automatica 84, pp.227-231, 2017 .
    Journal page
  4. N Noroozi, A Khayatian, R Geiselhart.
    A characterization of integral input-to-state stability for hybrid systems.
    Mathematics of Control, Signals, and Systems 29:13, 2017.
    Journal page
  5. DP Borgers, R Geiselhart, WPMH Heemels.
    Tradeoffs Between Quality-of-Control and Quality-of-Service in Large-Scale Nonlinear Networked Control Systems.
    Nonlinear Analysis: Hybrid Systems 23, pp. 142-165, 2017.
    Journal Page
  6. R Geiselhart, F Wirth.
    Relaxed ISS small-gain theorems for discrete-time systems.
    SIAM Journal on Control and Optimization 54 (2), pp. 423-449, 2016.
    Journal Page
  7. R Geiselhart, F Wirth.
    On maximal gains guaranteeing a small-gain condition.
    SIAM Journal on Control and Optimization 53 (1), pp. 262-286, 2015.
    Journal page
  8. R Geiselhart, M Lazar, FR Wirth.
    A Relaxed Small-Gain Theorem for Interconnected Discrete-Time Systems.
    IEEE Transactions on Automatic Control 60 (3), pp. 812-817, 2015.
    Journal page
  9. R Geiselhart, RH Gielen, M Lazar, FR Wirth.
    An alternative converse Lyapunov theorem for discrete-time systems.
    Systems and Control Letters 70, pp. 49-59, 2014.
    Journal page
  10. R Geiselhart, F Wirth.
    Solving iterative functional equations for a class of piecewise linear K∞-functions.
    Journal of Mathematical Analysis and Applications 411 (2), pp. 652-664, 2014.
    Journal page
  11. R Geiselhart, F Wirth.
    Numerical construction of LISS Lyapunov functions under a small-gain condition.
    Mathematics of Control, Signals, and Systems 24 (1-2), pp. 3-32, 2012.
    Journal page

Conference contributions

  1. D Bergmann, R Geiselhart, K Graichen.
    Modelling and Control of a Heavy-Duty Diesel Engine Gas Path with Gaussian Process Regression.
    accepted to be presented at ECC 2019
  2. R Geiselhart, D Bergmann, J Niemeyer, J Remele, K Graichen.
    Hierarchical optimization of operational costs of a heavy-duty diesel engine and an exhaust aftertreatment system.
    accepted to be presented at ECC 2019
  3. N Noroozi, S Trip, R Geiselhart.
    Model predictive control of DC microgrids: currrent sharing and voltage regulation.
    Preprints of the 7th IFAC NECSYS,
    Groningen, The Netherlands,27-28 August 2018, pp. 124-129.
    Journal page
  4. N Noroozi, R Geiselhart, FR Wirth.
    On integral input-to-state stability analysis of networked control systems.
    Preprints of the 20th IFAC World Congress,
    Toulouse, France, 9-14 July 2017. pp. 10495-10500
    Journal page
  5. R Geiselhart.
    Lyapunov Functions for Discontinuous Difference Inclusions.

    Preprints of the 10th IFAC Nonlinear Control Systems Design Symposium NOLCOS 2016,
    Monterey, California, USA, August 2016, pp. 223-228.
    Journal page
  6. WPMH Heemels, DP Borgers, VS Dolk, R Geiselhart, SHJ Heijmans.
    Constructions of Lyapunov Functions for Large-scale Networked Control Systems with Packet-based Communication.

    Proc. of the European Control Conference, ECC 2016,
    Aalborg, Denmark, pp. 936-938.
    preprint
  7. R Geiselhart, DP Borgers, WPMH Heemels.
    A small-gain approach to networked control systems with asynchronous communication.
    Proc. Appl. Math. Mech., 16:809-810
    , 2016.
    Journal page
  8. R Geiselhart, RH Gielen, M Lazar, FR Wirth.
    Converse Lyapunov Theorems for Discrete-Time Systems: an Alternative Approach.
    Proc. Mathematical Theory of Networks and Systems MTNS2014, Groningen, Niederlande, Juli 2014, pp. 1298-1304.
    pdf version
  9. R Geiselhart, M Lazar, FR Wirth.
    Construction of Polyhedral Lyapunov Functions for Discrete-Time Systems.
    Proc. Mathematical Theory of Networks and Systems MTNS2014, Groningen, Niederlande, Juli 2014, pp. 1305-1311.
    pdf version
  10. R Geiselhart, RH Gielen, M Lazar, FR Wirth.
    A nonconservative small-gain theorem for GAS discrete-time systems.
    Preprints of the 9th IFAC Nonlinear Control Systems Design Symposium NOLCOS 2013, Toulouse, Frankreich, September 2013, pp. 26-31.
    pdf version
  11. R Geiselhart, F Wirth.
    Numerical construction of LISS Lyapunov functions under a small gain condition.
    Proc. 50th IEEE Conference on Decision and Control, CDC2011, Orlando, Fl, Dezember 2011, pp. 6967-6972.
    Journal page

Other work

  1. R. Geiselhart.
    Advances in the stability analysis of large-scale discrete-time systems.
    PhD thesis, University of Würzburg, Germany, 2015.
    pdf version
  2. R. Geiselhart.
    Homotopie-Algorithmen und die numerische Konstruktion von ISS-Lyapunovfunktionen (in German).
    Diploma thesis, University of Würzburg, Germany, 2010.

Funktion

Wissenschaftlicher Mitarbeiter

Kontakt

Dr. Roman Geiselhart
Raum: 41.4.203
Telefon: +49 (0)731 50 27057
Email | Homepage

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