doc. Ing. Miroslav Chomát, CSc.

Professional experience

• 2003 - now: Faculty of Electrical Engineering, Czech Technical University, Prague
• 2006 - now: Institute of Thermomechanics, Czech Academy of Sciences, Prague
• 1988 - 2005: Institute of Electrical Engineering, Czech Academy of Sciences, Prague

Stays abroad

• 1999 - 2000: University of Wisconsin – Madison, USA (1 year)
• 1996: Oxford University, UK (1 month)
• 1996: Institut für Elektrische Maschinen und Antriebe, Universität Hannover, Germany (1 month)

Education

• 1994: Ph.D. - Electrical Machines and Devices, Inst. of Electrical Engineering, Czech Academy of Sciences, Prague
• 1988: M.Sc. Electrical Power Engineering, Faculty of Electrical Engineering, Czech Technical University, Prague
• 2007: Certificate in Management, Masaryk Institute of Advanced Studies, Czech Technical University, Prague

Fields of interest

• Control of electrical drives (solid-state converters, digital control, numerical simulations)
• Electric machines
• Renewable energy generation (wind and hydro power)
• FEM modeling of magnetic field distribution in electric machines
• Power electronics

Research grant projects
Principal investigator
2016 ‑ 2018    Analysis of Systems Employing Induction Machines with Combined Star-Delta Windings in Regard to Performance and Energy Efficiency Improvement (Czech Science Foundation)
2013 ‑ 2015    Advanced control methods of multi-phase electric machines (Czech Science Foundation)
2009 ‑ 2011    Effect of DC-Link Voltage Variations in Voltage Source Inverter on Electric Drive Operation (Czech Science Foundation)
2006 ‑ 2008    Control of electromechanical energy conversion systems in non-standard operating conditions (Czech Science Foundation)
2002 ‑ 2004    Elimination of Effects of Unbalanced Power Supply on Operation of Drive with Solid-State Converter (Czech Science Foundation)
1999 ‑ 2002    Modeling and Control of Variable-Speed Drives Comprising Unconventional Electric Machines (Ministry of Education, Youth, and Sport of the Czech Republic)
1999 ‑ 2001    Analysis and Control of Variable-Speed Drives with Advanced Types of Motors (Grant Agency of the Czech Academy of Sciences)
1997    Modeling of Electromechanical Systems Comprising Electrical Rotating Machines Fed from Solid State Frequency Converters (Grant Agency of the Czech Academy of Sciences)
1995    Modeling and Analysis of System Consisting of Alternator with Synchronous Exciter Connected to Power Network (Grant Agency of the Czech Academy of Sciences)
Participation
2008 ‑ 2010    Improvement of Reliability of AC Variable Speed Drives (Czech Science Foundation)
2004 ‑ 2006    Analysis and optimization of AC electrical drive system with reduced number of switching elements of inverter (Czech Science Foundation)
2003 ‑ 2005    Electromechanical Energy Conversions at Variable Speed (Czech Science Foundation)
2001 ‑ 2004    Controlled AC Machine in Modern Drive and Power Systems (Grant Agency of the Czech Academy of Sciences)
2001 ‑ 2003    Analysis and Optimization of Drive Systems with Electrical Machines of Special Construction with Respect to their Application in Configurations with Reduced Number of Switches (Czech Science Foundation)
1999 ‑ 2003    U.S.-Czech Engineering Research on Circuit Design and Control of Variable Speed Drives for Low Cost High Volume Applications (National Science Foundation, USA)
2001 ‑ 2002    Theoretical Support for Innovation of Drive for Control Rods in 440 MW Nuclear Reactor (Czech Science Foundation)
2000 ‑ 2002    Complex Model of Selected Types of Electromechanical Energy Conversions (Czech Science Foundation)
1998 ‑ 2000    Salient-Pole Generators Working at Variable Speed (Czech Science Foundation)
1997 ‑ 2000    Dynamically Demanding and Failure Regimes of Electromechanical Energy Conversion Systems (Grant Agency of the Czech Academy of Sciences)
1997 ‑ 1999    Modeling of Drive Systems with Electric Machines of Special Construction Fed from Solid-State Converters (Czech Science Foundation)
1995 ‑ 1997    Induction generator in Power Network (Czech Science Foundation)
1994 ‑ 1996    Electrodynamical Transient Phenomena in Electric Machines as Limiting Factor of Modern Electromechanical Energy Conversions (Grant Agency of the Czech Academy of Sciences)
1993 ‑ 1994    Force Effects of Rotating Magnetic Field on Metal Particles (Czech Science Foundation)
1991 ‑ 1993    Electrodynamical Phenomena in Rotating Electric Machines and their Monitoring in Exceptionally Demanding Operating and Failure Regimes (Grant Agency of the Czech Academy of Sciences)
Aditional information

• Senior member IEEE
• Member IET
• CEng. – Engineering Council, UK

Publications
Journals with impact factor

• Schreier, L.; Bendl, J.; Chomát, M. Effect of combined stator winding on reduction of higher spatial harmonics in induction machine. Electrical Engineering. 2017, vol. 99, no. 1, pp. 161-169. ISSN 0948-7921.
• Schreier, L.; Bendl, J.; Chomát, M. Operation of five-phase induction motor after loss of one phase of feeding source. Electrical Engineering. 2017, vol. 99, no. 1, pp. 9-118. ISSN 0948-7921.
• Schreier, L.; Bendl, J.; Chomát, M. Effect of higher spatial harmonics on properties of six-phase induction machine fed by unbalanced voltages. Electrical Engineering. 2015, vol. 97, no. 2, pp. 155-164. ISSN 0948-7921.
• Chomát, M.; Schreier, L.; Bendl, J. Control of Active Front-End Rectifier in Electric Drive under Unbalanced Voltage Supply in Transient States. Przeglad Elektrotechniczny. 2012, vol. 88, 1A, pp. 177-180. ISSN 0033-2097.
• Klíma, J.; Chomát, M.; Schreier, L. Analytical closed-form investigation of PWM inverter induction motor drive performance under DC bus voltage pulsation. IET Electric Power Applications. 2008, vol. 2, no. 6, pp. 341-352. ISSN 1751-8660.
• Bendl, J.; Chomát, M.; Schreier, L. Independent Control of Positive- and Negative-Sequence Current Components in a Doubly Fed Machine. European Transactions on Electrical Power. 2005, vol. 15, no. 3, pp. 191-202. ISSN 1430-144X.
• Chomát, M.; Schreier, L. Control Method for DC-Link Voltage Ripple Cancellation in Voltage Source Inverter under Unbalanced Three-Phase Voltage Supply Conditions. IEE Proceedings. Electric Power Applications. 2005, vol. 152, no. 3, pp. 494-500. ISSN 1350-2352.
• Chomát, M.; Lipo, T. A. Adjustable-Speed Single-Phase IM Drive with Reduced Number of Switches. IEEE Transactions on Industry Applications. 2003, vol. 39, no. 3, pp. 819-825. ISSN 0093-9994.
• Doležel, I.; Chomát, M.; Schreier, L. Method of Determining Input Parameters for Basic Equations of Synchronous Reluctance Machine. COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering. 2000, vol. 19, no. 2, pp. 411-419. ISSN 0332-1649.

Peer review journals

• Schreier, L.; Bendl, J.; Chomát, M. Analysis of induction machines with combined stator windings. Acta Technica CSAV. 2015, vol. 60, no. 2, pp. 155-171. ISSN 0001-7043.
• Schreier, L.; Bendl, J.; Chomát, M. Effect of higher spatial harmonics on properties of six-phase induction machine fed by unbalanced voltages. Electrical Engineering. 2015, vol. 97, no. 2, pp. 155-164. ISSN 0948-7921.
• Chomát, M.; Schreier, L.; Bendl, J. Control of Active Front-End Rectifier in Electric Drive under Unbalanced Voltage Supply in Transient States. Przeglad Elektrotechniczny. 2012, vol. 88, 1A, pp. 177-180. ISSN 0033-2097.
• Chomát, M.; Schreier, L.; Bendl, J. Measurement on Five-Phase IM Fed from Ten-Pulse Frequency Converter. Transactions on Electrical Engineering. 2012, vol. 1, no. 2, pp. 66-71. ISSN 1805-3386.
• Schreier, L.; Bendl, J.; Chomát, M. Mathematical model of five-phase induction machine. Acta Technica CSAV. 2011, vol. 56, no. 2, pp. 141-157. ISSN 0001-7043.
• Schreier, L.; Bendl, J.; Chomát, M. Comparison of Selected Properties of Three- and Five-Phase Induction Motors. Maszyny elektryczne - Zeszyty Problemowe. 2010, -, no. 88, pp. 169-174. ISSN 0239-3646.
• Klíma, J.; Chomát, M.; Schreier, L. Analytical closed-form investigation of PWM inverter induction motor drive performance under DC bus voltage pulsation. IET Electric Power Applications. 2008, vol. 2, no. 6, pp. 341-352. ISSN 1751-8660.
• Chomát, M.; Schreier, L.; Bendl, J. Analysis of Variable-Speed Operation of Drives with Single-Phase Machines. Acta Technica CSAV. 2007, vol. 52, no. 2, pp. 139-147. ISSN 0001-7043.
• Schreier, L.; Bendl, J.; Chomát, M.; Klíma, J. Possibility of reducing stray losses and parasitic torques in two-phase emergency feeding of induction motors. Acta Technica CSAV. 2006, vol. 51, no. 2, pp. 109-131. ISSN 0001-7043.
• Bendl, J.; Chomát, M.; Schreier, L. Independent Control of Positive- and Negative-Sequence Current Components in a Doubly Fed Machine. European Transactions on Electrical Power. 2005, vol. 15, no. 3, pp. 191-202. ISSN 1430-144X.
• Chomát, M.; Schreier, L. Control Method for DC-Link Voltage Ripple Cancellation in Voltage Source Inverter under Unbalanced Three-Phase Voltage Supply Conditions. IEE Proceedings. Electric Power Applications. 2005, vol. 152, no. 3, pp. 494-500. ISSN 1350-2352.
• Schreier, L.; Chomát, M.; Bendl, J. Operating Regions of Adjustable-Speed Units with Doubly Fed Machines. Acta Technica CSAV. 2004, vol. 49, no. 2, pp. 119-136. ISSN 0001-7043.
• Chomát, M.; Lipo, T. A. Adjustable-Speed Single-Phase IM Drive with Reduced Number of Switches. IEEE Transactions on Industry Applications. 2003, vol. 39, no. 3, pp. 819-825. ISSN 0093-9994.
• Chomát, M.; Schreier, L. Compensation of Unbalanced Three-Phase Voltage Supply in Voltage Source Inverter. Acta Technica CSAV. 2003, vol. 48, no. 2, pp. 113-128. ISSN 0001-7043.
• Chomát, M.; Schreier, L.; Bendl, J. Adjustable-Speed Power Unit with Doubly Fed Machine. Acta Technica CSAV. 2002, vol. 47, no. 1, pp. 1-12. ISSN 0001-7043.
• Schreier, L.; Chomát, M.; Doležel, I. Effect of Machine Geometry on Higher Harmonics Content in Air-Gap Magnetic Field of Synchronous Reluctance Machine. Politechnika Slaska. Zeszyty Naukowe. Elektryka. 2001, vol. 176, no. 1500, pp. 259-266. ISSN 0072-4688.
• Doležel, I.; Chomát, M.; Schreier, L. Method of Determining Input Parameters for Basic Equations of Synchronous Reluctance Machine. COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering. 2000, vol. 19, no. 2, pp. 411-419. ISSN 0332-1649.
• Bendl, J.; Schreier, L.; Chomát, M. Radial and Tangential Components of Magnetic Field Intensity in Model of Trash Separator. Acta Technica CSAV. 1995, vol. 40, no. 4, pp. 373-390. ISSN 0001-7043.
• Chomát, M. Dynamic Space Phasor Model of Synchronous Generator Loaded with Controlled Rectifier. Acta Technica CSAV. 1995, vol. 40, no. 2, pp. 139-156. ISSN 0001-7043.
• Bendl, J.; Schreier, L.; Chomát, M. Dynamics of Transition of Asynchronous Generator from Autonomous Operation to Network Operation and Vice Versa. Acta Technica CSAV. 1994, vol. 39, no. 2, pp. 173-191. ISSN 0001-7043.