Rm. 302e / 14:00-17:00, Sunday, June 4
A Survey on Advanced Methods of Control in Electrical Drives

Prof. Mario Pacas

Department of Energy Technology, Aalborg University
Mario Pacas (M96-SM00) received the Dipl.-Ing. and Dr.-Ing. degrees in electrical engineering from the University of Karlsruhe, Karlsruhe, Germany, in 1978 and 1985, respectively. From 1985 to 1996, he worked for BBC/ABB in Switzerland and Germany in different R&D and management positions with a very wide experience in international projects. In the last year with ABB, he was responsible for the development of servo drives and later was the Product Responsible Manager for these products. Since 1996, he has been a Member with the Faculty of Electrical Engineering and Computer Sciences, University of Siegen, Siegen, Germany, where he is also the Head of the Institute for Power Electronics and Electrical Drives. His special fields of interest are motion control, diagnostics, system identification, and optimization of mechatronic systems.
Dr. Ralph M. Kennel

School of Engineering, The University of Glasgow
Ralph M. Kennel received his diploma degree and in 1984 his Dr.-Ing. (Ph.D.) degree from the University of Kaiserslautern. From 1983 to 1999 he worked on several positions with Robert BOSCH GmbH (Germany). Until 1997 he was responsible for the development of servo drives. Between 1997 and 1999
Dr. Kennel was responsible for "Advanced and Product Development of Fractional Horsepower Motors" in automotive applications. His main activity was preparing the introduction of brushless drive concepts to the automotive market. From 1994 to 1999 Dr. Kennel was appointed Visiting Professor at the University of Newcastle-upon-Tyne (England, UK).
From 1999 - 2008 he was Professor for ElectricalMachines and Drives at Wuppertal University (Germany). Since 2008 he is Professor for Electrical Drive systems and Power Electronics at Technische Universitaet Muenchen (Germany).
Dr. Kennel is a Senior Member of IEEE, a Fellow of IET (former IEE) and a Chartered Engineer in the UK. Within IEEE he is Treasurer of the Germany Section as well as Distinguished Lecturer and ECCE Global Partnership Chair of the Power Electronics Society (IEEE-PELS). In 2013 Dr. Kennel has received the Harry Owen Distinguished Service Award from IEEE-PELS.
The invention of the Field Oriented Control (FOC) and of the Direct Torque Control (DTC) were two important revolutionary milestones in the area of control for electrical drives. Since then, the further development of control schemes for electrical drives was an interesting field of research and both methods were enhanced and thoroughly investigated. Today the dynamics and precision of the commercial available systems is excellent and therefore a successful work in this area becomes extremely challenging. The researcher as well as the practitioner are overwhelmed by the huge number of publications and have a difficult task in finding out, which is the real state of the art and which are the advantages and the effort of implementation for the different schemes.

The objective of the present tutorial is to give an overview of the state of the knowledge and especially of the acceptance of different control methods for electrical machines and for motion control in industrial applications. The topics included are:

1) Field oriented control and DTC as fundamental schemes of control. Differences and similarities.

2) Models, observers and filters for the control of electrical drives

3) Model based approaches

4) Sensorless/Encoderless/Self Sensing Control

5) Predictive, optimum and fault tolerant control

6) Fuzzy, non-linear, NN and other non-conventional approaches

7) Practical aspects of realization: Control platform, FPGAs, simulation tools and sensors.

8) Actual trends (e. g. MTPA control), drives in the automation, Industry 4.0