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personal data approved: 2020. VIII. 03.
Personal data
István Varjasi
name István Varjasi
name of institution
doctoral school
BME Doctoral School of Electrical Engineering (Supervisor)
accreditation statement submitted to: Budapest University of Technology and Economics
Contact details
E-mail address varjasiaut.bme.hu
phone number +36 1 463-1552
own web page
Academic title
scientific degree, title Ph.D.
year degree was obtained 1997
discipline to which degree belongs electrical engineering
institution granting the degree Budapesti Műszaki Egyetem (to be translated)
Employment
1980 - BME Automatizálási és Alk. Informatikai Tanszék (research institute, not university)
Thesis topic supervisor
number of doctoral students supervised until now 5
number of students who fulfilled course requirements 2
students who obtained their degrees:
Attila Balogh PhD 2011  DSEE

completed course requirement, without degree or degree granting in process:
András Futó (PhD) 2016/01  DSEE
Tamás Kökényesi (PhD) 2014/08  DSEE
Tibor Debreceni (PhD) 2018/08  DSEE
present PhD students:
Szabolcs Veréb (PhD) (2022/08)  DSEE
Dávid Kiss (PhD) (2021/08)  DSEE
  Thesis topic proposals
Research
research area Control of power converters used in utilization of renewable energy, power converters of smart grids, motion control, HIL, P-HIL
research field in which current research is conducted electrical engineering
Publications
2019

Futo Andras, Varjasi Istvan, Vajk Istvan, Jardan Rafael Kalman: Analytical Compensation of Harmonics caused by 60° Flat-Top Modulation, IET POWER ELECTRONICS 12: (7) pp. 1763-1773.
type of document: Journal paper/Article
language: English
URL 
2019

Veréb Szabolcs, Futó András, Sütő Zoltán, Balogh Attila, Varjasi István: Cross-Period Single Phase Shift Control Technique for High Power and Low Frequency Dual Active Bridge Converters, In: Jaroslav, Dudrik; Viliam, Fedák; Karol, Kyslan; Jadranko, Matuško (szerk.) 2019 International Conference on Electrical Drives & Power Electronics (EDPE), IEEE (2019) pp. 385-390.
type of document: Part of book/Proceedings Paper
language: English
URL 
2018

Kökényesi Tamás, Hegedűs Márton, Veréb Szabolcs, Balogh Attila, Sütő Zoltán, Varjasi István: FPGA-Driven DAC with Second Order Sliding Mode Control of Filter Model for Hardware-In-the-Loop Simulators, In: Razvan-Ioan, Dinita; Mihai, Cernat; Lia, Elena Aciu (szerk.) Proceedings of the 2018 IEEE 18th International Conference on Power Electronics and Motion Control (PEMC), IEEE (2018) pp. 826-831.
type of document: Part of book/Proceedings Paper
language: English
2018

Zoltán Sütő, Attila Balogh, Dávid Kiss, Szabolcs Veréb, István Varjasi: Power HIL Emulation of AC Machines with Parallel Connected ANPC Bridge Arms, In: Razvan-Ioan, Dinita; Mihai, Cernat; Lia, Elena Aciu (szerk.) Proceedings of the 2018 IEEE 18th International Conference on Power Electronics and Motion Control (PEMC), IEEE (2018) pp. 592-598.
type of document: Part of book/Proceedings Paper
language: English
2017

Andras Futo, Tamas Kokenyesi, Istvan Varjasi, Zoltan Suto, Istvan Vajk, Attila Balogh, Gergely Gyorgy Balazs: Real-Time HIL Simulation of the Discontinuous Conduction Mode in Voltage Source PWM Power Converters, JOURNAL OF POWER ELECTRONICS 17: (6) pp. 1535-1544.
type of document: Journal paper/Article
language: English
URL 
2016

Futó András, Varjasi István, Debreceni Tibor, Balázs Gergely György: METHOD AND SYSTEM FOR DEAD TIME COMPENSATION IN A PWM CONTROLLED INVERTER, Lajstromszám: EP3104516 Benyújtás helye: Magyarország
type of document: Patent/Europian patent
language: English
URL 
2015

A Futo, I Varjasi: Empirical compensation of low order harmonics due to flat top modulation, In: Szerk.: Viliam Fedák Electrical Drives and Power Electronics (EDPE), 2015 International Conference on. New York: IEEE, 2015. pp. 447-452.
type of document: Part of book/Proceedings Paper
language: English
DOI 
2014

A. Futó, I. Varjasi, Z. Sütő: Current Ripple Calculation for Dead Time Compensation in Three Phase PWM Inverters, In: Szerk.: Igor Kuzle, Szerk.: Tomislav Capuder, Szerk.: Hrvoje Pandžić EnergyCon 2014: IEEE International Energy Conference. Dubrovnik: IEEE, 2014. pp. 195-201.
IEEE International Energy Conference
type of document: Part of book/Proceedings Paper
language: English
DOI 
2011

Kökényesi Tamás, Varjasi István: FPGA-Based Real-Time Simulation of Power Converters of Renewable Energy Sources, In: Szerk.: anon 6th International Green Energy Conference. [hiányzó városnév]: [s. n.], 2011. pp. 984-992.
type of document: Part of book/Proceedings Paper
language: English
Full text 
2007

Balogh Attila, Varjasi István, Bilau Zoltán Tamás: High Efficiency Control of a Grid Connected PV Converter, In: EuroPES2007.Palma de Mallorca, Spanyolország, 2007.08.29-2007.08.31. pp. 257-263. Kiadvány: 2007.
type of document: Conference paper/Előadás vagy poszter cikke
language: English
Full text 
Number of independent citations to these publications:
Scientometric data
list of publications and citations
number of scientific publications that meet accreditation criteria:
65
number of scientific publications:
64
monographs and professional books:
0
monographs/books in which chapters/sections were contributed:
1 
scientific publications published abroad that meet the accreditation criteria:
37
publications not in Hungarian, published in Hungary, meeting the accreditation criteria:
13
number of independent citations to scientific publications and creative works:
15

 
All rights reserved © 2007, Hungarian Doctoral Council. Doctoral Council registration number at commissioner for data protection: 02003/0001. Program version: 2.2358 ( 2017. X. 31. )