Prof. Dr. Goran Rafajlovski

 Dissertation topic: Investigation and Modelling of Vector- Controlled System with Induction Motor. (Direct self - control of IM and Field oriented Control of IM)

Master topic: Synthesis of Digitally Position Control System with Microcomputer EPAC 68008 and DC motor

Lectures

• Energy Economics
• Electrical Engineering
• Electrical & Electronic Engineering (DC, AC, Analog Electronic)

Research

Prof. Dr. Goran Rafajlovski is mainly focused on the research field of power engineering with an emphasis on electric machines, transformers and drive controls. Further fields of interest are in the field of Renewable Energy, Microgrids, Energy Economics and Energy markets

His current research focus is mainly on two fields: improving the efficiency of the drive systems in decentralized RES based supply systems and the investigation of grid integration of energy storage systems in microgrids with improved controllability and monitoring.

Publications

• International Journals

Goran Rafajlovski: Performance of Electric Power System of Macedonia, Future Trends and Investment Projects, Published by Nemesis Intelligence Worldwide, Klagenfurt Austria, Global Power Infrastructure, The Millennium Edition 2000, pp.14-16

Krste Najdenkoski, Goran Rafajlovski, Jordan Shikoski: Thermal Aging of Distribution Transformer According to IEEE and IEC Standards, Published in Magazine Advances in Electrical and Computer Engineering, Volume6 (13), Number 2(26), ISSN 1582-7445, 2006

Goran Rafajlovski, K.Najdenkoski: Energy Efficiency in Vector Controlled Variable Speed Drives, ELEKTROTECHNICA & ELEKTRONICA, Scientific and technical magazine, Bulgaria, ISSN 0861-4717, 2008 pp.28-33

Goran Rafajlovski: Mazedonien: Potenziale zur Erhöhung der Energieeffizienz und den Einsatz erneuerbarer Energien,Südosteuropa Mitteilungen, 03-04/Jahrgang  2009,s.111-121

Goran Rafajlovski: Space Vector Modulation Technique for Inverter fed Induction Motor, International Journal on Information Technologies and Security, No.2/2012 ISSN 1313-8251

M. Digalovski, K. Najdenkoski, G. Rafajlovski: “Prediction of Core Losses of Three-Phase Distribution Transformer”, Journal of Energy and Power Engineering, Vol. 7, Number 12, Decembar 2013,ISSN 1934-8975,  CA 91770, USA.

Mihail Digalovski, Goran Rafajlovski, Krste Najdenkoski: Optimally designed energy efficient transformer using global iterative algorithms, International Journal Elektrotechnica & Elektronica E+E/ Vol.50, No 5-6, 2015, ISSN 0861-47-17

Goran Rafajlovski, Mihail Digalovski: PWM Inverter dead time impact on vector control system, International Journal on Information Technologies and Security, No.4/2015, ISSN 1313-8251

Goran Rafajlovski, M.Digalovski, Goga Cvetkovski: Space vector modulation techniques for improved stator flux trajectory in direct torque  control of induction motor PRZEGLĄD ELEKTROTECHNICZNY, ISSN 0033-2097, R. 95 NR 5/2019

Goran Rafailovski Can the Synthesis of DC Motor Cascade Control Parameters be the Same as for the Field-Oriented Controlled Induction Motor, International Journal on Information Technologies and Security, IJITS, No.SP2/2019, ISSN 1313-8251

Mihail Digalovski, Goran Rafajlovski: Distribution transformer mathematical model for power losses minimization, International Journal on Information Technologies and Security, IJITS, No.2/2020, ISSN 1313-8251, pp 57-68.

Saiful Islam, Lukasz Rojek, Michael Hartmann, Goran Rafajlovski, Artificial Intelligence in Renewable Energy Systems Based on Smart Energy House, IJITS International Journal on Information Technologies & Security, № 4 (vol. 12), 2020, ISSN 1313-8251, pp 3-12.

• International Conferences

Goran Rafajlovski, Emil Ratz and others: Modeling  and Simulation of Voltage Inverter fed Induction Motor with Stator flux orientation, IEEE-IAS Annual Meeting, Orlando, Florida USA 1995, Vol.1,pp 546-552

Goran Rafajlovski, Emil Ratz: Modeling Analysis and Simulation of Motor Parameter Variation in Vector Controlled Electrical Drives, IEEE PESC, 28 ANNUAL POWER ELECTRONICS SPECIALIST CONFERENCE, St.Luis, South Carolina, USA, Juni 1997

Ljubomir Nikolovski, Goran Rafajlovski: Electric Arc Furnace in Power System Aspects of Power Quality a Case Study, ELECO 99, International Conference on Electrical and Electronics Engineering, December, Bursa, Turkey

Ljubomir Nikoloski, Goran Rafajlovski: Investigation of Electric Power Quality in the Distribution Power System of Republic of Macedonia, Proceedings of 9th IEEE melecon'98 Conference, , vol.II, pp.1018-1022, May 18-20, 1998

Goran Rafajlovski: Wirtschaftliche Entwicklung Mazedoniens: Vortrag an Internationale Konferenz Sudosteuropa Geselschaft und Konrad Adenauer Stiftung: Der Westliche Balkan: politische Ordnung, wirtschaftliche Stabilität und internationales Engagement, Berlin 27. Okt 2006

Mihail Digalovski, Goran Rafajlovski, Krste Najdenkoski: Optimally designed energy efficient transformer using global iterative algorithms, International Journal Elektrotechnica & Elektronica E+E/ Vol.50, No 5-6, 2015, ISSN 0861-47-17

Goran Rafajlovski, Krste Najdenkoski: Modeling  of  Circuit Parameter Variation in Vector   Controlled Induction Motor Drives, OPTIM`06, 10-th International Conference on Optimization of Electrical and Electronic Equipments, Romania, Brasov, 2006

Goran Rafajlovski: Politische und Wirtschaftliche Perspektiven Mazedoniens in Hinblick auf die EU und NATO, Vortrag an Ost-/Südosteuropa an der Niederöstereich Landesakademie, St. Pölten www.noe-lak.at November 2007

Goran Rafajlovski, Krste Najdenkoski: Energy Efficiency in Vector Controlled Variable Speed Drives VSDs, International , 12th InternationalConference on Electric machines, Drives and Power Systems, supportet by VDE, FNTS, IEEE,  pp 6, okt 2008 www.elma2008.tu-sofia.bg

Mirchevski Slobodan, Arsov ljupco, Iljazi Iljaz, Rafajlovski Goran: The influence of reactive power on energy efficiency in houshold application, WSEAS/NAUN International Conference, Kos Island, Greece, July 14-17,2012

Goran Rafajlovski, Krste Najdenkoski, ljubomir Nikoloski Herbert Heidvogl: POWER QUALITY MONITORING AND SAMPLE SIZE ANALYSIS,BEYOND EN 50160 AND IEC 61000-4-30 CIRED 22nd International Conference on Electricity Distribution, Stockholm, 10-13 June 2013

Mihail Digalovski, Krste Najdenkoski Goran Rafajlovski, Impact of current high order harmonic to core losses of three-phase distribution transformer, EuroCon 2013 • 1-4 July 2013 • Zagreb, Croatia

Goran Rafajlovski, Energy Security Policy of the EU- Role of the western Balkan, Plenary Report , International Conference on Information technologies, InfoTech-2014, 18-18 September, Varna Bulgaria

Mihail Digalovski, Krste Najdenkoski, Goran Rafajlovski: Optimally Designed Energy Efficient Transformer Using Global Iterative Algorithms, International Conference on Information technologies, InfoTech-2014, 18-18 September, Varna Bulgaria

S. Mircevski, D. Vidanovski, M. Digalovski, G. Rafajlovski: Total Power Consumption in constant speed electric drive with Induction Motor – Part I, 18-th International Symposium on Power Electronics - Ee2015, Novi Sad, Serbia

S. Mircevski, D. Vidanovski, M. Digalovski, G. Rafajlovski: Total Power Consumption in Adjustable Speed Drive (ASD) with Induction Motor – Part II, 18-th International Symposium on Power Electronics - Ee2015, Novi Sad, Serbia

Goran Rafajlovski Krste Najdenkoski, Mihail Digalovski: Advanced vector control techniques for energy efficiency improvements, International Conference on Information technologies, InfoTech-2014, 18-18 September, Varna Bulgaria

Goran Rafajlovski Krste Najdenkoski, Mihail Digalovski: Voltage Quality Issues and EN 50160 (Case Study of the Distribution Grid in Macedonia, International Conference on Information technologies, InfoTech-2016, Varna Bulgaria

M. Digalovski, K. Najdenkoski, G. Rafajlovski: “Stator core condition assessment using stator core test for turbogenerator type TGH-120”, 19th International Symposium on Electrical Apparatus and Technologies (SIELA), ISBN 978-1-4673-9521-2, 29.05-01.06.2016, Bourgas, Bulgaria

Goran Rafajlovski, Mihail Digalovski: Controlling Induction motors,  Proceedings of the International Conference on Information Technologies (InfoTech-2018) 20-21 September 2018, Bulgaria

Mihail Digalovski, Goran Rafajlovski: Inrush current interference between power transformers, Proceedings of the International Conference on Information Technologies (InfoTech-2018) 20-21 September 2018, Bulgaria

Goran Rafajlovski, Mihail Digalovski, Goga Cvetkovski: Advantages of stator flux trajectory for direct torque control of induction machine with uncertain resistances, 7Th International symposium on applied electromagnetic, June 17 2018 Slovenia

Slobodan Mirchevski, D.Vidanovski, M. Digalovski, Goran Rafajlovski: The importance of non-active power in choosing high power electric drive, 20th IEEE INTERNATIONAL SYMPOSIUM on POWER ELECTRONICS - Ee 2019, Serbia

Goran Rafailovski Can the Synthesis of DC Motor Cascade Control Parameters be the Same as for the Field-Oriented Controlled Induction Motor, Proceedings of the IEEE international conference InfoTech–2019 (33rd issue), Bulgaria

Saiful Islam, Lukasz Rojek, Michael Hartmann, Goran Rafajlovski: Artificial Intelegence in renewable energy systems based on smart energy house, Proceedings of the 34 International Conference on Information Technologies (InfoTech-2020), Rec#49733, 17-18 September 2020, Bulgaria

Mihail Digalovski Goran Rafailovski: Calculation of starting and breaking times of induction motor electric drives for different mechanical loads, Proceedings of the IEEE international conference InfoTech2020, 17-18 September, St. Constantine & Elena, Bulgaria

Slobodan Mircevski, Dragan Vidanovski, Mihail Digalovski, Goran Rafajlovski: How to choose electric drive according IEC 60034-1, Paper No.A1-305, Session A1/PS3 Latest Developments, 2020 SIGRE International Conference, Paris.

Matthias Raab, Michael Hartmann, Klaus-Ulrich Neumann, Goran Rafajlovski, Richard Gyasi, Bertrand Pani, Ragy Ramadan: Capacity building in developing regions, 3rd International Conference on Solar Technologies & Hybrid Mini Grids to improve energy access, at the Unversitat de les Illes Balears in Palma, Spain on September 23 - 25, 2020.

• Invited lectures at international Universities

Universität Rostock, Fakultät für Informatik und Elektrotechnik: Gastvortrag zum Thema: Mikroprozessorregelung der Gleichstrommaschine/Feldorientierte Vektorregelung der Asynchronmaschine; Rostock 9 Juli 2007, Deutschland

Technical University Sofia, College of Energy and Electronics, Invited lecture as Honorary Professor for Power Systems; Sofia 2011, Bulgaria

SRH Hochschule, University of Applied Sciences Berlin: Invited Lecture: Erneurbaren Energie und Energie Wirtschaftlichkeit, Deutschland 2014/2015/

Nehemiah Gateway University, Albania - Invited Lecture since 2014

• Published books

Goran Rafajlovski, Mihail Digalovski, Induction Motor - Dynamics and Vector Control, Scholar’s Press, Saarbrücken, Germany 2015, ISBN 978-3-639-86165-5;

Goran Rafajlovski, Mihail Digalovski, DC Motor-Dynamics and Control, Scholar’s Press, Saarbrücken, Germany 2015, ISBN 978-3-639-86257-7;

Mihail Digalovski, Goran Rafajlovski, Krste Najdenkoski, Design of Energy Efficiency Power Transformer, Scholar’s Press, Saarbrücken, Germany 2015, ISBN 978-3-639-76081-1

Further commitment

Since 2018: Recognized reviewer of International Journal Elsevier-Energy

Since 2012: Member of the international editorial board of the International Journal on Information Technologies

Since 2005: DAAD VIP Alumni

Since 1991: Senior Member of IEEE IAS