Leonids RIBICKIS

Professor Leonids RIBICKIS Vice-Rector for Research Riga Technical University Director, Institute of Industrial Electronics and Electrical Drives, Riga Technical University Kalku iela 1 Riga, LV 1050 Latvia Phone: +371 708 9400; +371 708 9415 Fax: +371 782 0094 E-mail: [email protected]

Born: August 24, 1947, Cesis region, Latvia

Interests:

• Power Electronics
• Electrical Drives
• Electrical Machines
• Process Control Systems

Languages: Latvian, English, Russian, and German

Education:

• Riga Technical University (Faculty of Electrical Engineering), 1970
• Dr.sc.ing. (Candidate of Technical Sciences in former USSR, Ph.D. in Western countries), Byelorussia Polytechnical Institute, 1980
• Dr.habil.sc.ing., Riga Technical University, 1994
• Professor, Riga Technical University, 1996 –

Experience

• Engineer, Researcher, Senior Researcher, Head of Research Group, Laboratory of Power Traction Equipment, Riga Branch of SU Railway Carriage Building Research Institute, 1970-1975
• Researcher, Ph.D. student, Assistant, Professor, Riga Technical University, 1975-1987
• Associated Professor (Docent), Department of Electrical Drives and Power Electronics, Riga Technical University, 1983-1995
• Head and Scientific Director, Research Laboratory of Electromechanotronics, Faculty of Electrical Engineering, Riga Technical University, 1987-1999
• Professor and Head of Division of Industrial Electronic equipment, Faculty of Power and Electrical Engineering, Riga Technical University, 1996-
• Director, Latvia Technology Park, 1996-2000
• Director, Institute of Industrial Electronics and Electrical Drives, Faculty of Power and Electrical Engineering, Riga Technical University, 1999-
• Vice-Rector for Research Riga Technical University, 2000-

• Department of Electrical Machines, Budapest Technical University, 1979/1980 (10 months)

• WEMPEC Group, Faculty of Electrical Engineering and Computer Sciences, University of Wisconsin, Madison, USA, 1986/87 (6 months)

Honours and Awards

• Full Member, Latvian Academy of Sciences, 2007
• Corresponding Member, Latvian Academy of Sciences, 2001
• Bronze Medal, SU Exhibition of Industry Achievements and New Technologies, Moscow, 1979
• Second Prix, All Union Industrial Exhibition, Kiev. 1985
• Second Prix, International Exhibition on New Technologies, Varna, Bulgaria (1986)
• Medal "Inventor of USSR", 1986
• UK Royal Award, 1993

Professional Activities and Memberships

• Delegate from Latvia, EU DG-12 Non Nuclear Energy Committee, 1999-
• Member, European Power Electronics and Drives Association (EPE), 1995-
• Board Member and Representative from Baltic states, Middle and East Europe Power Electronics and Motion Control (PEMC) division, European Power Electronics and Drives Association, 1998-
• Board Member, Latvian National Committee, World Energy Council, 1996-
• Member, Latvian Union of Scientists, 1990-
• Member, Latvian Electrical Engineers Society, 1991-
• Editorial Advisory Board for Journal Power and Electrical Engineering, Riga Technical University, 1999-
• Member, Associations of Professors of Latvia, 1997-
• President, Latvian Association of Technology Parks, Centres and Business Incubators, 1999-
• Vice President, Academy of Intellectual Property and Innovations, 2000-
• Board Member, Latvian Federation of Shooting Sport, 1999-
• Member, Latvian Council of Science, 2003 -

Lectures

• Invited Lecturer, Norwegian University of Science and Technology, Trondheim, November, 1994

    Riga Technical University:

• Electrical Drives
• Industrial Electronic Equipment
• Frequency Converters

• Innovation Management

Recent / Representative Publications

• L.Ribickis. Analogue model of thyristor controlled AC drive for centrifugal pump. – Periodica Polytehnica Electrical Engineering, Budapest: BTU, 1981, vol.25. Nr.1, pp.55-67.
• J.Greivulis, L.Ribickis. Thyristor Controlled AC Drives for Centrifugal Pumps. 1983, Riga: Zinatne Press, 218 p. (in Russian)
• L.Ribickis, J.Greivulis. Centrifugal pump drive with slip power recovery. – Proceedings of 5^th Power Electronics Conference, Budapest`85, October 21-25, 1985, pp.265-272.
• L.Ribickis, E.Muljadi. Induction machine phase balancing by unsymmetrical voltage control for general case of unbalance. – Proceedings of WEMPEC Review Meeting University of Wisconsin, Madison, USA, 1987, Madison, pp.88-92.
• L.Ribickis, L.Rutmanis. A novel approach to control output voltage waveform of static converter. - Proceedings of the 6<sup>th</sup> Conference on Power Electronics and Motion Control PEMC`90, Budapest, Hungary, 1990, vol.1, pp.895-897.
• J.Greivulis, J.Avksthol, L.Ribickis. Sub-synchronous Converter Systems with Increased Efficiency, 1991, Riga: Zinatne Press, 217 p. (in Russian)
• L.Ribickis, M.Liepins, L.Rutmanis, J.Stabulnieks. Alternative solution of direct frequency conversion for AC drives. - Proceedings of IEEE International Symposium on Industrial Electronics ISIE' 93, Budapest, Hungary, June 1-3, 1993, pp.440-442.
• L.Rutmanis, J.Stabulnieks, L.Ribickis, M.Liepins. An alternative solution for a direct frequency conversion concept and research method. - Latvian Journal of Physics and Technical Sciences, 1993, 3, pp.67-72.
• L.Ribickis, U.Ivbuls, J.Greivulis, S.Petrov. Static Kraemer drive with specially designed voltage inverter. - Proceedings of 4-th European Conference on Power Electronics and Application, Firenze, Italy, 1991, pp.301-305.
• L.Ribickis, A.Pumpurs. Microprocessor control system in Riga Municipal Plant, Water Supply and Sewerage. - Proceedings International Conference Integrated Computer Applications in Water Supply Distribution, Leicester, UK, September 1-3, 1993, Leicester, 1993, pp.443-455.
• L.Ribickis, S.Petrov, J.Greivulis, V.Pugachev. Inductor generator with the cantilever rotor. - Proceedings of International Conference on the Evolution and Modern Aspects of Synchronous Machines, Zurich, Switzerland, August 27-29, 1991, Part 3, pp.865-869.
• L.Rutmanis, J.Stabulnieks, L.Ribickis. Illustrations of frequency conversion principle. - Latvian Journal of Physics and Technical Sciences, 1994. N1. pp.49-56.
• Patent Nr. 5001 (Latvia), ISK H02K 19/20. Unipolar reluctance machine (S.Petrov, V.Pugacev, J.Greivulis, L.Ribickis), 1993.
• L.Rutmanis, J.Stabulnieks, L.Ribickis, V.Belkov. Simplified methods of direct frequency conversion for a fan-type electrical drive. - Latvian Journal of Physics and Technical Sciences, 1995, N2, pp.46-52.
• L.Ribickis. Theory and praxis of power electronic equipment of AC drives in water supply systems. - Baltic Electrical Engineering Review, 1995, Nr. 1, pp.46-48.
• L.Ribickis, L.Rutmanis, J.Stabulnieks. Different power conversion modes as a single process. - Latvian Journal of Physics and Technical Sciences, 1996, Nr.1, pp.18 - 24.
• L.Ribickis, I.Galkins, L.Rutmanis, J.Stabulnieks. Analysis of general switching variants of a direct frequency converter input voltages. - Latvian Journal of Physics and Technical Sciences, 1997, Nr. 2, pp.42 - 47.
• I.Galkin, L.Ribickis. Matrix converters with pulse – width modulation. - Latvian Journal of Physics and Technical Sciences, 1998, Nr.4, pp.29-40.
• L.Rutmanis, J.Stabulnieks, L.Ribickis. Direct frequency conversion process for different modes. - Proceedings of the 8th International Power Electronics & Motion Control Conference PEMC'98, September 8 - 10, 1998, Prague, Czech Republic, 1998, vol. 2, pp.80-84.
• L.Ribickis, L.Rutmanis, J.Stabulnieks. Energy saving features in a direct frequency process. - Latvian Journal of Physics and Technical Sciences, 1999, Nr2, pp.3-9.
• L.Ribickis, I.Galkin. Direct frequency converters for induction motor drives. -Proceedings of the IEEE International Symposium on Industrial Electronics ISIE`99, July 12-16, 1999, Bled, Slovenia, 1999, vol.1, pp.26-30.
• L.Rutmanis, J.Stabulnieks, L.Ribickis. Estimation of the most favourable switching variants for a direct frequency conversion. - Proceedings of the 8<sup>th</sup> European Conference on Power Electronics and Applications EPE`99, September 7-9,1999, EPFL Lausanne, Switzerland, 1999, pp.1-6.
• I.Galkin, L.Ribickis. Power Factor Adjustment by Means of Direct Frequency Converters. - Proceedings of the 7^th Biennial Conference on Electronics and Microsystem Technology BEC 2000, 7-9 October 2000, TTU, Tallinn, Estonia, 2000, pp. 120-125.
• I.Galkin, L.Ribickis. Reactive power control by means of matrix converters. - Proceedings of the 9^th European Conference on Power Electronics and Applications EPE2001, 27-29 August 2001 Graz, Austria, 2001, pp.1-8.
• K.Mikelsons, L.Ribickis, J.Ekmanis, V.Zebergs, N.Zeltinsh. Free electricity market: Baltic experience. – Proceedings of IERE – SP Chine Forum, 2002, November 10-13, Crowne Plaza Guihe Jinan, Shonogong, People’s Republic of China, vol, 5, pp.17-24.
• V.Pugachov, N.Levin, L.Ribickis, M.Mironov. A multipole asynchronous generator. – Latvian Journal of Physics and Technical Sciences, 2002, no 5, pp.65-66.
• A.Vitols, L.Ribickis. Thyristor-based FACTS Controolers for electrical transmission systems. - Proc. 4th Res. Symp. of Young Scientists " Actual Problems of Electrical Drives and Industry Automation", Tallinn, May 17-21, TTU, 2003, pp. 97-104.
• V.Pugachov, L.Ribickis, N.Levin,  M.Manonov. A multipolar inductor generator of angular design for windmills. - Riga Technical Univesrsity Scientific Proceedings, 2003, vol.4, N 10, pp. 9-15.
• E.Kamolins, N.Levin, V.Pugachov, L.Ribickis. Specific features of resistance step motors. – Latvian Journal of Physics and Technical Sciences, 2005, No 5, pp.27-35.
• I.Rankis, L.Ribickis, A.Vitols. Comparison of two solutions of regeneration circuits foe tramcars. - Electronics and Electrical Engineering (Lithuania), 2006, N 5 (69), p. 53-56.

   

• L.Ribickis. Induction Machine Phase Balancing by Unsymmetrical Voltage Control. – WEMPEC Reports University of Wisconsin, Madison USA (1986-1987).
• L.Ribickis (Head of Project) Microprocessor Control System for Drinking Water Treatment System "Daugava" Plant Riga City. Riga Water and Sewage Municipal Enterprise (1985-1987).
• L.Ribickis (Head of Project) Microprocessor Controlled AC Drive System for Centrifugal Pumps. Riga Water and Sewage Municipal Enterprise (1988-1989)
• L.Ribickis (Head of Project) Microprocessor Controlled System for Coagulation and Filtration Processes in Drinking Water Treatment Enterprise "Daugava". Riga Water and Sewage Municipal Enterprise (1990-1991).
• L.Ribickis (Head of Project). Microprocessor Control System of Pump Station of Sewage Water Treatment Enterprise "Daugavgriva". Riga Water and Sewage Municipal Enterprise (1991-1992).
• L.Ribickis (Head of Project). Data Base for Drinking Water Pump Stations of Riga City. Riga Water Municipal Enterprise (1993)
• L.Ribickis (Head of Project). Energy Sawing Converter for AC Drives. Latvian Council of Science (1992-1995)
• L.Ribickis (Head of Project).  Energosawing Power Electronic Converters and Control Systems with Neutral Networks and Fuzzy Logic Controllers. Latvian Council of Science (2001 - 2004).
• L.Ribickis (Head of Project). Investigation of the Performance Optimisation Methods for Efficient Electrical Drives Systems.  Latvian Council of Science (2001 -2004).
• L.Ribickis (Head of Project). Power Electronic Converters and Control Systems with Neural Networks and Fuzzy Logic Controllers.  Latvian Council of Science (2005 -).
• L.Ribickis (Head of Project). Electrical drives system optimization and investigation of expert methods.  Latvian Council of Science (2005 - ).

Avocations: Sports (shooting, badminton), singing, Member of the Male Choir "Gaudeamus".

Last update 25.11.2007