Iryna Kulchytska-Ruchka

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Kulchytska

Iryna Kulchytska-Ruchka, M.Sc.

+49 6151 16-24379

Dolivostr. 15
64293 Darmstadt

Office: S4|10 217

Working area(s)

  • Multi-rate time-integration combined with domain decomposition of electric-machine simulation

More information

As a result of the German energy transition (“Energiewende”), efficient and robust designs of electromechanical energy converters, in particular electrical machines, are becoming increasingly important, whether as drives or components in the automotive industry, in industrial automation or in household appliances. Research about this topic is part of the BMBF PASIROM project and deals with modeling, simulation and robust optimization of electrical machines. Particularly the efficient time-parallel simulation of the models, e.g. using the Parareal approach, is investigated. Parallelization in the time domain is of a particular interest especially in the cases when electric motors are supplied with a pulse-width modulated voltage of a high frequency, e.g., of a couple of tens of kHz. This leads to problems which involve discontinuous right-hand sides and requires special techniques for their numerical solution. A novel Parareal algorithm, based on a reduction of the coarse dynamics by using a smooth low-frequency excitation, has been recently introduced. Its convergence analysis and application to an induction machine model shows efficiency of the approach for the real-life demands in electrical engineering.

GnuPG Public Key

4933 915B D0F6 0DD0 5CD9  9847 9E9C 0B87 5B15 6E0D

Publications

Gruppiere nach: Publikationsjahr | Typ des Eintrags | Keine Gruppierung
Springe zu: 2018 | 2017
Anzahl der Einträge: 13.

2018

Cortes Garcia, Idoia ; Kulchytska-Ruchka, Iryna ; Schöps, Sebastian :
Parallelised Waveform Relaxation for Field/Circuit Coupled Systems.
 [Online-Edition: https://sim.mathematik.uni-halle.de/numdiff/Numdiff15/]
In: Numdiff-15.
[ Konferenzveröffentlichung] , (2018)

Kulchytska-Ruchka, Iryna ; Schöps, Sebastian :
Parallel-in-time Simulation of Electric Machines, Excited with PWM-Signal.
 [Online-Edition: http://maxwell-in-motion.org]
In: Workshop on Advances in Electromagnetic Research — KWT 2018, Rietzlern, Austria. Maxwell in Motion , Rietzlern, Austria
[ Konferenzveröffentlichung] , (2018)

Kulchytska-Ruchka, Iryna ; Schöps, Sebastian ; Gander, Martin J. ; Niyonzima, Innocent :
Convergence analysis of Parareal for systems with discontinuous inputs.
 [Online-Edition: http://ecmi.bolyai.hu]
In: 20th European Conference on Mathematics for Industry (ECMI 2018), Budapest, Hungary.
[ Konferenzveröffentlichung] , (2018)

Friedhoff, Stephanie ; Hahne, Jens ; Kulchytska-Ruchka, Iryna ; Schöps, Sebastian :
Exploring Parallel-in-Time Approaches for Eddy Current Problems.
 [Online-Edition: http://ecmi.bolyai.hu]
In: 20th European Conference on Mathematics for Industry (ECMI 2018), Budapest, Hungary.
[ Konferenzveröffentlichung] , (2018)

Kulchytska-Ruchka, Iryna ; Gander, Martin J. ; Schöps, Sebastian ; Niyonzima, Innocent :
A New Parareal Algorithm for Problems with Discontinuous Sources.
 [Online-Edition: https://www.math.univ-paris13.fr/~japhet/PINT2018.htm]
In: VII Workshop on Parallel in Time Methods PinT 2018.
[ Konferenzveröffentlichung] , (2018)

Kulchytska-Ruchka, Iryna ; Schöps, Sebastian ; De Gersem, Herbert :
A spectral coarse solver for the parallel-in-time solution of the eddy current problem.
 [Online-Edition: https://www.siam.org/meetings/pp18]
In: SIAM Conference on Parallel Processing for Scientific Computing.
[ Konferenzveröffentlichung] , (2018)

Friedhoff, Stephanie ; Hahne, Jens ; Kulchytska-Ruchka, Iryna ; Schöps, Sebastian :
Exploring Parallel-in-Time Approaches for Eddy Current Problems.
 In: arXiv , 1810.13263 .
[Report] , (2018) (Eingereicht)

Gander, Martin J. ; Kulchytska-Ruchka, Iryna ; Niyonzima, Innocent ; Schöps, Sebastian :
A New Parareal Algorithm for Problems with Discontinuous Sources.
 In: arXiv , 1803.05503 .
[Report] , (2018) (Eingereicht)

Gander, Martin J. ; Kulchytska-Ruchka, Iryna ; Schöps, Sebastian :
A New Parareal Algorithm for Time-Periodic Problems with Discontinuous Inputs.
 In: arXiv , 1810.12372 .
[Report] , (2018) (Eingereicht)

2017

Kulchytska-Ruchka, Iryna ; Schöps, Sebastian ; De Gersem, Herbert :
Time-parallel solution of the time-periodic eddy current problem.
 [Online-Edition: https://www.ics.usi.ch/index.php/6th-workshop-on-parallel-in...]
In: 6th Workshop on Parallel-in-Time methods.
[ Konferenzveröffentlichung] , (2017)

Kulchytska-Ruchka, Iryna ; Schöps, Sebastian ; De Gersem, Herbert :
Time-parallel solution of the time-periodic eddy current problem.
 [Online-Edition: https://sites.google.com/site/scicade2017/]
In: International Conference on Scientific Computation and Differential Equations SciCADE 2017.
[ Konferenzveröffentlichung] , (2017)

Kulchytska-Ruchka, Iryna ; De Gersem, Herbert ; Schöps, Sebastian
Schäfer, Michael (ed.) :
Time-parallel solution of the time-periodic eddy current problem.
 In: 4th International Conference on Computational Engineering (ICCE 2017), Darmstadt, Germany. Darmstadt, Germany
[ Konferenzveröffentlichung] , (2017)

Kulchytska-Ruchka, Iryna ; Schöps, Sebastian ; De Gersem, Herbert :
Time-parallel solution of the time-periodic eddy current problem.
 [Online-Edition: http://maxwell-in-motion.org]
In: Workshop on Advances in Electromagnetic Research — KWT 2017.
[ Konferenzveröffentlichung] , (2017)

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