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Silesian University of Technology

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Department of Power Electronics, Electrical Drives and Robotics
About Department / Academic Staff / Mariusz Stępień, D.Sc., Eng., Prof. of SUT

Mariusz Stępień, D.Sc., Eng., Prof. of SUT

Office: 228A
Phone: (+48 32) 237-26-91
E-mail: 		Mariusz Stępień, D.Sc., Eng., Prof. of SUT


Scientific interests:

Electromagnetic field modeling in high temperature superconductors (HTS). Power and electronic applications of HTS superconductivity. Features and applications of high frequency power transformers. Features and applications of new magnetic material for industrial electronics. Finite element modeling (FEM - ANSYS) of power electronics elements and systems. FE modeling of coupled field, electromagnetic, thermal-CFD and mechanical.
PhD Dissertation: Analysis of features and optimization of power electronic transformer with highly coupled concentric windings, promoted by Boguslaw Grzesik, PhD, DSc., prof. of SUT, defended 21.03.2006.

Research projects:
  1. Project of Polish Ministry of Education and Science: Analysis and tests of superconducting HTS toroidal transformer in respect of technology design and materials to improve efficiency and power density - project manager. Realization period: 08.03.2010 - 07.10.2012.
  2. Development project: Development of casting method of cast iron with homogeneity and uniform distribution of graphite - contractor. Realization period: 01.07.2008-31.12.2009.
  3. Special research project: The implantable system of data and energy transmission for supplying of artificial heart, project under Polish Government Programme Polish Artificial Heart - contractor. Realization period: 01.09.2008 - 31.12.2010.
  4. 6 FP UE HYDROGENIE: Development and field testing of a compact HTS hydro power generator with reduced investment costs, lowered environmental impacts and strongly improved performance to reduce the price per kWh - contractor. Realization period: 01.07.2007-30.06.2009.
  5. Research project: Technology of fabrication and applications of soft magnetic rapidly-quenched alloys in power electronics and electrical industry - contractor. Realization period: 01.06.2006-31.12.2007.
  6. Project of Polish Ministry of Education and Science: Computational and experimental analysis of superconducting HTS transformer for low frequency power electronic applications - main contractor. Realization period: 06-12-2005 - 05-06-2007.
  7. Project of Polish Ministry of Education and Science: Draft, technology design, realization of prototype and computational and laboratory test of novel high frequency coaxial transformer - main contractor. Realization period: 07.11.2003 - 07.02.2005.
  8. Hipolity Craft, ENK6-CT-2002-3002: Innovative New High Temperature Superconducting Magnetic Storage (SMES) System for High Efficient Power Quality - contractor. Realization period: 12.2002 - 05.2005.
  9. Project of Polish Ministry of Education and Science: Analysis of the properties of coaxial high frequency transformer for power electronics with spatial design - project manager. Realization period: 01.09.2001 - 31.07.2002.
Patents:
  1. Grzesik B., Stępień M.: Firmly Banked HTS Modular Coaxial Transformer, Patent applied for, No. PL371956, date of application: 28.12.2004, publication date: 10.07.2006
  2. Grzesik B., Stepien M.: Coreless modular coaxial transformer, Patent applied for, No. PL341951, date of application: 08.08.2000, publication date: 11.02.2002.
  3. Grzesik B., Stepien M.: Modular coaxial transformer, Patent applied for, No. PL341950, date of application: 08.08.2000, publication date: 11.02.2002.
Patents pending:
  1. Szajnar J., Grzesik B., Stępień M., Wróbel T., Sebzda W.: Device for electromagnetic stirring of liquid metal in continuous casting process, Patent applied for, No. PL387577, date of application: 23.03.2009, publication date: 27.09.2010
  2. Mikno Z., Grzesik B., Stępień M.: Manner and test-rig to prepare thermocouple for temperature measurements in small-scale elements, Patent applied for, PL389422, date of application: 30.10.2009, publication date: 09.05.2011.
Monographs, books and textbooks:
  1. Stepien M., Grzesik B.: Characteristics of the magnetic materials in 30-77 K - Section in monograph entitled: Proceedings of the Twenty-Third International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2010, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2011.
  2. Gacek Z., Maźniewski K., Stępień M.: Computer simulation of a current joint within insulating piercing connectors - Section in monograph entitled: Computer Applications in Electrical Engineering edited by Ryszard Nawrowski, Wydawnictwo Gaudentinum, Poznań 2008.
  3. Grzesik B., Biskup T., Michalak J., Pasko S., Stępień M., Zygmanowski M.: Power Conditioning System with SMES Design, Simulation and Experimental Results - Section in monograph entitled: Power Electronics and Electrical Drives Selected Problems edited by Teresa Orłowska-Kowalska, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2007.
Duties outside Faculty of Electrical Engineering:
  1. LLP/ERASMUS Faculty Co-ordinator.
  2. Tutor for Student Power Electronics Scientific Group.
  3. Member of ESAS - The European Society for Applied Superconductivity.
  4. Member of Scientific Network Superconducting technologies - 'SUPTECH' - part of Network Sustainable Energy Systems 'ENERGY FUTURE'.
International cooperation:
  1. Co-operation within LLP/Erasmus: lectures at UHP Nancy, France (2006) CIT, Cork, Ireland (2009) and Pamukkale University, Denizli, Turkey (2011).
  2. Attendance in seminars International workshop on numerical modelling of HTS, Lozanna, Switzerland (2010), Cambridge, UK (2011), Barcelona, Spain (2012).
  3. Attendance in Summer Schools on Applied Superconductivity, Karlsruhe, Germany (2007), Pori, Finland (2008), Grenoble, France (2009).
  4. Attendance in Advanced Research Workshop on transformers, Baiona, Spain, 2007.
Other achievements:
  1. Bronze Cross of Merit (Poland) - 2009.
  2. Prizes of Rector of Silesian University of Technology - scientific (2006 i 2011) i managing (2010).
  3. The best paper award (IInd place) at Symulacja 2011 for the paper Analysis of distribution of forces in passive magnetic bearings.
Publications:
  1. Stępień M., Gajek Ł., Grzesik B.: Analysis of distribution of forces in passive magnetic bearings (in Polish), Mechanik, nr 10/2011, s. 782-785.
  2. Stępień M., Grzesik B.: Magnetic passive suspension for small BLDC motors, 16th International Symposium on Power Electronics, Ee 2011, 28-30.10.2011, Novi Sad, Serbia.
  3. Grzesik B., Stępień M.: Analysis of single coil PM-BLDC motor, 16th International Symposium on Power Electronics, Ee 2011, 28-30.10.2011, Novi Sad, Serbia.
  4. Stępień M., Grzesik B.: FEM modelling of quench propagation in BiSCCO tape, Proc. of the 7th International Conference ELMECO-7 Electromagnetic Devices and Processes in Environment Protection joint with 10th Seminar Applications of Superconductivity AoS-10, September 28-30, 2011, Nałęczów, pp. 141-142.
  5. Grzesik B., Stępień M.: Magnetic refrigeration, Proc. of the 7th International Conference ELMECO-7 Electromagnetic Devices and Processes in Environment Protection joint with 10th Seminar Applications of Superconductivity AoS-10, September 28-30, 2011, Nałęczów, pp. 35-36.
  6. Stepien M., Grzesik B.: Quench detection in HTS wire under slow-changed current pulse - FEM modeling and laboratory tests, Superconductivity Centennial Conference, The Hague, The Netherlands, SCS-2011, 18-23.09.2011.
  7. Krosny S., Grzesik B., Stepien M.: Theoretical simulation studies on pulse critical current measurements of composite superconducting wires using ANSYS, Superconductivity Centennial Conference, The Hague, The Netherlands, SCS-2011, 18-23.09.2011.
  8. Jez R., Grzesik B., Stepien M.: Laboratory tests of the toroidal HTS transformer, Superconductivity Centennial Conference, The Hague, The Netherlands, SCS-2011, 18-23.09.2011.
  9. Stępień M., Grzesik B.: Analysis of distribution of forces in passive magnetic bearings (in Polish), Seminar Symulacja 2011, 14-15.04.2011 Tarnowskie Góry.
  10. Jeż R., Stępień M., Grzesik B.: Analysis of magnetic field in toroidal HTS transformer (in Polish), Scientific issue of SUT: Elektryka, z. 214, Gliwice 2010, str. 109-126.
  11. Szajnar J., Stępień M., Grzesik B.: Thermal and electromagnetic field analysis of casting process of cast iron castening (in Polish), Scientific issue of SUT: Elektryka, z. 214, Gliwice 2010, str. 23-33.
  12. Stępień M., Grzesik B.: Characteristics of new magnetic materials in liquid nitrogen for HTS transformers (in Polish), Scientific issue of SUT: Elektryka, z. 214, Gliwice 2010, str. 69-78.
  13. Grzesik B., Stepien M., Bodzek K., Fair R., Ingles M.: Tests of a vacuum gauge for an HTS hydrogenerator, 14th International Power Electronics and Motion Control Conference, EPE-PEMC 2010, 6-8.09.2010, Ohrid, Macedonia.
  14. Kustosz R., Brandt J., Szczurek Z., Kaczmarczyk Z., Stepien M., Grzesik B.: Charging and discharging backup battery for artificial heart, 14th International Power Electronics and Motion Control Conference, EPE-PEMC 2010, 6-8.09.2010, Ohrid, Macedonia.
  15. Stepien M., Grzesik B.: Characteristics of the magnetic materials in 30 - 77 K, International Cryogenic Engineering Conference 23 - International Cryogenic Materials Conference 2010, ICEC 23-ICMC 2010, 19-23.07.2010, Wroclaw, Poland.
  16. Stepien M., Krosny S., Grzesik B.: Analysis of quench propagation using coupled electrical-thermal FEM model, Journal of Physics. Conference Series, Article no. 022036, vol. 234, part 2, 2010.
  17. Krosny S., Wozniak M., Hopkins S. C., Stepien M., Grzesik B., Glowacki B. A.: Modeling of transient state phenomena of composite superconducting conductors during pulse Ic(B) measurements, Journal of Physics. Conference Series, Article no. 022019, vol. 234, part 2, 2010.
  18. Grzesik B., Stepien M., Jez R.: Toroidal HTS transformer with cold magnetic core - analysis with FEM software, Journal of Physics. Conference Series, Article no. 032018, vol. 234, part 3, 2010.
  19. Szajnar J., Stępień M., Grzesik B.: Modelling of electromagnetic and thermal fields in process of continuous iron casting (in Polish), Seminar Symulacja 2010, 25-26.03.2010 Sulejów-Podklasztorze.
  20. Cieśla T., Kaczmarczyk Z., Stępień M., Kustosz R., Grzesik B.: Prototype of contactless energy transmission system (in Polish), Pomiary Automatyka Kontrola, PAK 2010 nr 08, s. 922-925.
  21. Szajnar J., Stawarz M., Wróbel T., Sebzda W., Grzesik B., Stępień M.: Influence of continuous casting conditions on grey cast iron structure, Archives of Materials Science and Engineering, 2010 vol. 42 nr 1, s. 45-52.
  22. Grzesik B., Bodzek K., Stepien M.: Power losses in leads and interconnections of coaxial linear transformer, Electronics Journal (Faculty of Electrical Engineering University of Banjaluka), Vol. 14, Issue 1, pp. 67-71, June 2010.
  23. Szajnar J., Cholewa W., Stawarz M., Wróbel T., Sebzda W., Grzesik B., Stępień M.: Influence of electromagnetic field on the morphology of graphite in structure of cast iron, Archives of Foundry Engineering, vol. 10, Issue 1, Jan.- March 2010, pp. 175-180.
  24. Cieśla T., Kaczmarczyk Z., Grzesik B., Stępień M.: Circuits for contactless electrical energy transmission (in Polish), Scientific issue of SUT: Elektryka, z. 212, Gliwice 2009, str. 135-149.
  25. Mikno Z., Grzesik B., Stępień M., Łomozik M., Pilarczyk A., Zeman M.: Simulation and measurement of temperature distribution in research methodology used for examination of structural transformations of steel in welding conditions, International Conference on Failure Analysis and Repair Welding, ICFARW 2009, 16-19 November 2009, Cairo, Egypt.
  26. Mikno Z., Grzesik B., Stępień M., Łomozik M., Pilarczyk A., Zeman M.: Impact of geometric features of thermocouple on absolute temperature of structural transformations in steel in welding conditions, International Congress on Welding and Joining, 30.11-3.12.2009 Tehran, Iran.
  27. Grzesik B., Stepien M., Kaczmarczyk Z., Brandt J., Szczurek Z.: Power Electronics in Artificial Heart - Buckup Battery, 15th International Symposium POWER ELECTRONICS Ee2009, 28th-30th October 2009, Novi Sad, Serbia.
  28. Stepien M., Ploskonka B., Grzesik B.: Model of Maglev Locomotive for Educational Purposes, 15th International Symposium POWER ELECTRONICS Ee2009, 28th-30th October 2009, Novi Sad, Serbia.
  29. Grzesik B., Bodzek K., Stepien M.: Power Losses in Leads and Interconnections of Coaxial Linear Transformer, 15th International Symposium POWER ELECTRONICS Ee2009, 28th-30th October 2009, Novi Sad, Serbia.
  30. Bodzek K., Zygmanowski M., Stepien M., Grzesik B.: Bluetooth Based Transmission System for Superconducting Synchronous Generator, 15th International Symposium POWER ELECTRONICS Ee2009, 28th-30th October 2009, Novi Sad, Serbia.
  31. Stepien M., Krosny S., Mikno Z., Grzesik B., Stępień M.: Simulation (FEM-3D) of Temperature Distribution in Small-Sized Elements Used for Examination of Structural Changes of Steel in Welding Conditions, 1st International Conference on Welding Technologies, June 11-13, 2009, Ankara, Türkiye.
  32. Grzesik B., Stępień M., Krosny S.: FEM and laboratory tests of HTS transformer with improved utilization of superconducting wire, Przegląd Elektrotechniczny nr 5/2009, str. 166-169.
  33. Grzesik B., Stępień M.: Characteristics of new magnetic materials in LN2 for HTS transformers, Proc. of the 6th International Conference ELMECO-6 Electromagnetic Devices and Processes in Environment Protection joint with 9th Seminar Applications of Superconductivity AoS-9, June 24-27, 2008, Nałęczów, Poland, pp. 14-15.
  34. Grzesik B., Stępień M., Krosny S.: FEM and laboratory tests of HTS transformer with improved utilization of superconducting wire, Proc. of the 6th International Conference ELMECO-6 Electromagnetic Devices and Processes in Environment Protection joint with 9th Seminar Applications of Superconductivity AoS-9, June 24-27, 2008, Nałęczów, Poland, pp. 13-14.
  35. Grzesik B., Janowski T., Kolano R., Stępień M.: Influence of non-symmetry on field distribution in toroidal HTS transformer (in Polish), VII Seminar and workshop: Zastosowania Nadprzewodników ZN-8 Nałęczów 17-20.06.2007, Wydawnictwo Liber Duo, Lublin 2008, str. 66-71.
  36. Gacek Z., Maźniewski K., Stępień M.: Computational analysis of current junction in insulation piercing electrical clamp connector (in Polish), 13th Conference: Computer Application in Electrical Engineering ZKwE'2008, Poznań, 16-18.04.2008.
  37. Grzesik B., Stępień M.: Influence Of Thermocouple Measurements On Temperature In Power Electronic Device, 14th International Symposium on Power Electronics, Ee2007, 7-9.11.2007, Novi Sad, Serbia.
  38. Grzesik B, Stępień M.: HTS transformer with improved utilization of superconducting wire, Proceedings of Advanced Research Workshop on Transformers, ARWtr 2007, 29-31.10.2007, Baiona, Spain.
  39. Stępień M., Grzesik B.: The megahertz transformer for power applications, Proceedings of Advanced Research Workshop on Transformers, ARWtr 2007, 29-31.10.2007, Baiona, Spain.
  40. Grzesik B, Stępień M.: New shape of superconducting coil with improved critical current - design and FEM analysis results, Journal of Physics: Conference Series, Article no. 012312, Vol. 97, 2008.
  41. Grzesik B., Janowski T., Stępień M.: HTS Toroidal Helical Transformer, Journal of Physics: Conference Series, Article no. 012311 Vol. 97, 2008.
  42. Grzesik B., Stepien M.: Coaxial HF Power Transformer with Tubular Linear Windings - FEM Results vs. Laboratory Test, 12th International Conference on Power Electronics and Motion Control, EPE-PEMC 2006, 30.08-1.09.2006, Portoroz, Slovenia.
  43. Grzesik B., Stepien M., Kaczmarczyk Z., Zygmanowski M., Maciak E.: Coaxial transformer for power electronics - technology of prototype and its characteristics, Zeszyty Naukowe Politechniki Slaskiej, seria Elektryka, z. 198, Gliwice 2006, str. 19-28.
  44. Michalak J., Biskup T., Buehrer C., Grzesik B., Pasko S., Roest-Krijgsman J., Stepien M., Zygmanowski M.: Analysis of thyristor switch in Power conditioning system, Zeszyty Naukowe Politechniki Slaskiej, seria Elektryka, z. 198, Gliwice 2006, str. 119-128.
  45. Pasko S., Biskup T., Buehrer C., Grzesik B., Roest-Krijgsman J., Michalak J., Stepien M., Zygmanowski M.:Comparison of SMES and ScES based Power conditioning system, Zeszyty Naukowe Politechniki Slaskiej, seria Elektryka, z. 198, Gliwice 2006, str. 141-154.
  46. Grzesik B., Bodzek K., Stepien M.: Modular transformer with any turn-to-turn ratio, 13th International Symposium on Power Electronics - Ee 2005, Novi Sad, Serbia&Montenegro, November 2nd-4th, 2005.
  47. Grzesik B., Stepien M., Nowak A., Smołka J.: Influence of cooling system on the performance of coaxial transformer, 13th International Symposium on Power Electronics - Ee 2005, Novi Sad, Serbia&Montenegro, November 2nd-4th, 2005.
  48. Grzesik B., Stepien M., Zygmanowski M., Kaczmarczyk Z., Maciak E.: The experimental coaxial transformer - technology and characteristics, EPE 2005, Dresden, Germany, 11-14.09.2005.
  49. Michalak J., Biskup T., Buehrer C., Grzesik B., Kellers J., Pasko S., Roest-Krijgsman J., Stepien M., Zygmanowski M.: Analysis of Thiristor Switch in Power Conditioning System with SMES, EPE 2005, Dresden, Germany, 11-14.09.2005.
  50. Pasko S., Biskup T., Buehrer C., Grzesik B., Kellers J., Roest-Krijgsman J., Michalak J., Stepien M., Zygmanowski M.: Comparison of SMES and ScES Based Power Conditioning Systems, EPE 2005, Dresden, Germany, 11-14.09.2005.
  51. Grzesik B., Stepien M.: The straight line coaxial transformer - idea of design and basic properties, Zeszyty Naukowe Politechniki Slaskiej, seria Elektryka, z. 192, Gliwice 2004, str. 113-120.
  52. Stala R., Stepien M.: Constant Frequency Operation of Contactless Electrical Energy Transmission System. Practical Results and Magnetic Field Calculations, EPE-PEMC'04, Riga, Latvia, 02-04.09.2004.
  53. Grzesik B., Stepien M.: The Coaxial Transformer with Sectional Outer Winding - Design and Basic Properties, EPE-PEMC'04, Riga, Latvia, 02-04.09.2004.
  54. Grzesik B., Biskup T., Buhrer C., Krijgsman J., Michalak J., Pasko S., Stepien M., Zygmanowski M.: Comparison of Voltage and Current AC-DC Inverters Working in SMES Based PCS, EPE-PEMC'04, Riga, Latvia, 02-04.09.2004.
  55. Biskup T., Buhrer C., Grzesik B., Krijgsman J., Michalak J., Pasko S., Stepien M., Zygmanowski M.: Analysis of Inductance and Magnetic Field Distribution in the Superconducting Coil Assigned for Energy Storage Applications, EPE-PEMC'04, Riga, Latvia, 02-04.09.2004.
  56. Biskup T., Buhrer C., Grzesik B., Krijgsman J., Michalak J., Pasko S., Stepien M., Zygmanowski M.: Control System of Power Conditioning System with Superconducting Magnetic Energy Storage in Different Operation Conditions, EPE-PEMC'04, Riga, Latvia, 02-04.09.2004.
  57. Biskup T., Buhrer C., Grzesik B., Krijgsman J., Michalak J., Pasko S., Stepien M., Zygmanowski M.: Physical Model of Superconducting Coil in Real Experiment, EPE-PEMC'04, Riga, Latvia, 02-04.09.2004.
  58. Smołka J., Nowak A. J., Stepien M., Grzesik B.: Numerical Analysis of the Energy Transfer Processes in an Encapsulated Three-Phase Transformer and its Surrounding, 2nd International Conference on Contemporary Problems of Thermal Engineering, 21-25.06.2004, Ustron, Poland, Proceedings, pp. 435-442.
  59. Grzesik B., Stepien M.: The effect of the coaxial transformer design on the winding currents distribution and flux density, Zeszyty Naukowe Politechniki Slaskiej, seria Elektryka, z. 187, Gliwice 2003, str. 51-60.
  60. Grzesik B., Stepien M.: Analysis of effects of the coaxial transformer design on distribution of winding currents and flux density, 10th European Conference on Power Electronics and Applications, CD-ROM Proceedings 2-4.09.2003, Toulouse, France.
  61. Grzesik B., Stepien M.: The coaxial transformer - the influence of primary winding shape on the transformer properties, 10th International Power Electronics and Motion Control Conference, EPE-PEMC 2002, Proceedings, p. 380 & CD. 9-11.09.2002, Dubrovnik & Cavtat, Croatia.