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The Wonders of Technology May 4-7, 2008
Sheraton Fallsview
Niagara Falls
Ontario, Canada

Tutorial F: Predictive Control in Power Electronics and Drives

Sunday Afternoon, May 4
1 p.m. - 4 p.m.
Haida Room

Presented by

Drs. Ralph Kennel, Bergische Universitaet Wuppertal, Fachbereich E (Elektrotechnik, Informationstechnik, Medientechnik), Lehrstuhl fuer Elektrische Maschinen und Antriebe, Wuppertal, Germany, Marian Kazmierkowski, Institute of Control and Industrial Electronics - Warsaw University of Technology, Warsaw, Poland, José Rodríguez and Patricio Cortés, Departamento de Electrónica, Universidad Técnica Federico Santa María, Valparaíso, Chile


Cascaded control is state of the art in power electronics and drives since several decades. We do not expect serious changes within a short time, because cascaded control is easy to realize, easy to implement and robust in operation. Furthermore industry seems to be satisfied with the performance of cascaded control - there is no strong pressure to improve performance from that side. There are, however, serious drawbacks of cascaded control: its linear concept, the need of an extremely fast operating inner loop, etc. Academics should look out for a better concept to have it available, when the demand for better performing control schemes occurs again from industry. Predictive control is a strong candidate for that - the proposed tutorial will show that, give an overview over predictive control schemes and their advantages and show several examples in detail.


  1. Introduction
  2. Predictive Control Methods (Kennel)
  3. Trajectory Based Predictive Control (Kennel)
  4. Hysteresis Based Predictive Control (Kennel)
  5. Long-Range Predictive Control (Kennel)
  6. Predictive Control of 3phase AC/DC Converters (Kazmierkowski)
  7. Constant Switching Frequency Predictive Control (Kazmierkowski)
  8. Model Predictive Control with continuous states (Rodriguez/Cortes)
  9. Model Predictive Control with Finite States (Rodriguez/Cortes)
    1. Background
    2. Current control of a three-phase inverter
    3. Power control of an AFE
    4. Predictive Torque Control
    5. Control of a matrix converter
    6. Spectrum control
    7. Voltage control of an UPS
    8. Control of a NPC converter
    9. Control of a flying capacitor converter
  10. Some Implementation Issues (Rodriguez/Cortes)
  11. Predictive Control versus Cascaded Control (Kennel)
  12. Conclusions/Discussion

Intended Audience

Primary: Academics from Power Electronics and Drives institutions.
Secondary : Industrial engineers from development departments.

Presenters' Biographies

Ralph M. Kennel was born in Kaiserslautern, Germany, in 1955. He received the Diploma and Dr. Ing. (Ph.D.) degrees from the University of Kaiserslautern, Kaiserslautern, Germany, in 1979 and 1984, respectively. From 1983 to 1999, he held several positions within Robert BOSCH GmbH, Germany. Until 1997, he was responsible for the development of servo drives. Under his supervision, a new servo drive product family with complete digital field-oriented control for synchronous (electronically commutated/ brushless dc) and asynchronous machines was successfully introduced to the market. He was one of the main supporters of VECON and SERCOS interface, two multicompany development projects for a microcontroller, and a digital interface particularly dedicated to servo drives. Furthermore, he actively took part in the definition and release of new standards with respect to CE marking for servo drives. Between 1997 and 1999, he was responsible for the "Advanced and Product Development of Fractional Horsepower Motors" for automotive applications. His task was to prepare the introduction of brushless drive concepts to the automotive market. From 1994 to 1999, he was appointed Visiting Professor with the University of Newcastle upon Tyne, U.K. Since 1999, he has been a Professor of electrical machines and drives with Wuppertal University, Wuppertal, Germany. His main interests today are sensorless control of ac drives, predictive control of power electronics, and high-speed drives. Dr. Kennel is a Fellow of the Institution of Electrical Engineers, the Vice President for Meetings of the IEEE Power Electronics Society, and a Chartered Engineer in U.K.

Marian P. Kazmierkowski received the M.S., Ph.D., and Dr. Sci. degrees in electrical engineering from the Institute of Control and Industrial Electronics (ICIE), Warsaw University of Technology, Warsaw, Poland, in 1968, 1972, and 1981, respectively. From 1967 to 1980, he was an Assistant Professor at ICIE. From 1980 to 1983, he was with RWTH Aachen, West Germany, as an Alexander von Humboldt Fellow. From 1986 to 1987, he was a Visiting Professor at NTH Trondheim, Norway. Since 1987, he has been a Professor and Director of ICIE. He was a Visiting Professor at the University of Minnesota, Minneapolis, in 1990, at Aalborg University, Denmark, in 1990 and 1995, and at the University of Padova, Italy, in 1993. He was a Coordinating Professor of the International Danfoss Professor Program from 1997 to 2000 at Aalborg University, Denmark. From 1996 to 2004, he was an elected member of the State Committee for Scientific Research in Poland. He was also Head of the Centre of Excellence on Power Electronics Intelligent Control for Energy Conservation (PELINCEC 2003-2006) (European Framework Program V) at ICIE. He is the author or coauthor of over 250 technical papers and reports, as well as 13 books and textbooks. He coauthored Automatic Control of Converter-Fed Drives (Elsevier, 1994) and co-edited (with R. Krishnan and F. Blaabjerg) and coauthored the compendium Control in Power Electronics (Academic Press, 2002). He is engaged in experimental research and theoretical work on electric drives and industrial electronics. Dr. Kazmierkowski was the recipient of an Honorary Doctorate degree from Aalborg University in 2004 and the Dr. Eugene Mittelmann Achievement Award from the IEEE Industrial Electronics Society in 2005. He was Chairman of the 1996 IEEE International Symposium on Industrial Electronics held in Warsaw, Poland. He has served as Vice-President of Publications in the IEEE Industrial Electronics Society (1999-2001). He was the Editor-in-Chief of the IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS (2004-2006), as well as a member of many IEEE Committees, Conference Organizing Committees. He is Past-Chairman of the IEEE Poland Section.

José Rodríguez received the Engineer degree in electrical engineering from the Universidad Técnica Federico Santa María, Valparaíso, Chile, in 1977 and the Dr.-Ing. degree in electrical engineering from the University of Erlangen, Erlangen, Germany, in 1985. Since 1977, he has been with the Universidad Técnica Federico Santa María, where he is currently a Professor and the President. During his sabbatical leave in 1996, he was responsible for the Mining Division, Siemens Corporation, Santiago, Chile. He has a large consulting experience in the mining industry, particularly in the application of large drives like cycloconverter-fed synchronous motors for SAG mills, high-power conveyors, controlled drives for shovels, and power quality issues. He has authored or coauthored more than 130 refereed journals and conference papers and contributed to one chapter in the Power Electronics Handbook (Academic Press, 2006). His research interests are mainly in the area of power electronics and electrical drives. In the last years, his main research interests are in multilevel inverters and new converter topologies.

Patricio Cortés received the Engineer and M.Sc. degrees in electronic engineering from the Universidad Técnica Federico Santa María (UTFSM), Valparaíso, Chile, in 2004. He is currently working toward the Ph.D. degree at the same university. In 2003, he joined the Department of Electronics Engineering, UTFSM, as a Research Assistant. His main research interests are control of power converters and adjustable speed drives.

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