Fields of interest:

• Design of digital controllers for electrical drives
  • BOD - the Digital Magnitude Optimum (application of the Magnitude Optimum for discontinuous control without any approximations)
  • EEZ - Finite-Time Settling Control (minimum form and suboptimal controller using actuating variable reduction)
  • MATLAB BOD-Toolbox for Z-transformation and controller design via BOD and EEZ including single control loops, cascade and state control structures, large dead times (bus system as part of control loop) - as well as examples and simulation
  • Graphical controller programming and output limitations (one or both directions, cascade structur, synchron or asynchron loops, sample time ratio)
  • Symbolic definition of plant and controller for optimization ignoring Simulink Symbolic Math Toolbox
• Design of continuous controllers of the PID family
  • The Magnitude Optimum (Betragsoptimum) by Kessler - Realizing the potential
  • MATLAB BO-Toolbox and examples
• Bond Graphs (BG)
  • Modelling independently of energy domains
  • Power flow und energy efficiency
  • Simulink block library BG for Bond Graphs
  • Comparison of modelling tools
  • Controler design based on power flow oriented models
• Event-driven motion control of multi-motor drives
  • Design, simulation and real time code generation
  • Simulink block library FUP for Hybrid Function Charts
  • Check algorithms (parameter, syntax, dead ends, loops) based on GUIs or m-files for simulink block library FUP
• Methods for power flow oriented modeling (BG, EMR, POG)
  • Energetic Macroscopic Representation - EMR
  • Power Oriented Graph - POG
• MATLAB / Simulink
  • Design of user toolboxes and add-on libraries
  • Real time code generation via xPC Target
  • Use of C-MEX S-Functions

Recommendable references - arranged according to fields of interest:

• Bond Graph (introduction to BGs - H. M. Paynter, Massachusetts)
• Decoupling
• Energetic Macroscopic Reprensentation (home page EMR - A. Bouscayrol, Lille)
• Finite-Time Settling Control (Dead Beat, minimum form, suboptimal)
• Magnitude Optimum (Betragsoptimum, Kessler)
• Modelling
• Motion control
• Power flow oriented modeling in comparison
• Power Oriented Graph (home page POG - R. Zanasi, Modena)
• Z-transformation

Book / book chapter

• Entwurf digitaler Regler für elektrische Antriebe
  G.-H. Geitner,
  VDE-Verlag, 1996, ISBN: 3-8007-1847-2
• Bond graph based synthesis of generic power split modelling for epicyclic four-speed gears
  G.-H. Geitner, G. Komurgoz;
  In: Graph-Based Modelling in Science, Technology and Art, ISBN: 978-3-030-76786-0;
  Springer series: Mechanisms and Machine Science, vol. 107, 2021, pp. 19-44;
  eds: St. Zawislak, J. Rysinski
  doi: 10.1007/978-3-030-76787-7_2

Latest publication

• Key Characteristics of Generic Bond Graphs for Planetary Gears
  G.-H. Geitner, G. Komurgoz
  Mechanism and Machine Theory, 178C, 2022
  doi: 10.1016/j.mechmachtheory.2022.105082

Further publications

• See this list