Course description
State-of-the-art and future trends of electric motors and variable-speed drives. Transient states, dynamic operation of electric drives and servo systems, methods for reduction of energy losses during transients. Application of computer techniques for modelling, simulation and evaluation of operating states of electrical drives.
Small size electric motors, fractional horse power drives, optimization of motor designs for special purpose applications. Multi-phase motors and semiconductor converters. Linear motors and drive systems. Electrical motors and drives in automotive and railway applications (traction and auxiliary drives). Electromechanical energy converters in wind power plants.
Condition monitoring and diagnostics of electrical motors and drives. Special techniques and methods for on-line fault detection (electrical and mechanical types). Concepts of automated monitoring systems for supervision of drive reliability and health. Methods for quality control in mass-production of electrical motors.
Course is carried out on study programme
2nd Cycle Postgraduate Study Programme in Electrical Engineering
Objectives and competences
Knowledge of up-to date development on the field of electrical drives with special emphasis to industrial applications anddrives in electrical vehicles.
Student will be provided with theoretical and practical knowledge of modern computer simulation tools for design, optimization and operational analysis of electrical drives integrated in mechatronic systems.
Learning and teaching methods
The lectures provide a theoretical background on discussed topics. A complete study material is available to the students.
Laboratory exercises with preliminary instructions with emphasis to mathematical modelling and computer simulation of electrical drive’s operation. Individual seminar work to demonstrate the gained knowledge. Public presentation of the seminar research.
Intended learning outcomes
After successful completion of the course, students should be able to:
- Evaluate of concept and principle of operation of integrated drive systems.
- Study of special types of electrical motors, which differ from conventional ones in order to assure optimal operation.
- Analyse the role and concepts of power electronics circuits in correlation to electrical drives.
- Design mathematical models of controlled electrical drives.
- Develop of simulation procedures for analysis operational states of electrical drives.
- Realize complex simulation models of mechatronic systems.
- Present the research results in a format of scientific paper.
Reference nosilca
- FIŠER, Rastko, LAVRIČ, Henrik, BUGEZA, Miroslav, MAKUC, Danilo. Computations of magnetic field anomalies in synchronous generator due to rotor excitaton coil faults. IEEE transactions on magnetics, May 2013, vol. 49, no. 5, str. 2303-2306.
- GAŠPARIN, Lovrenc, ČERNIGOJ, Andrej, FIŠER, Rastko. Additional cogging torque components due to asymmetry in stator back iron of PM synchronous motors. Compel, 2011, vol. 30, no. 3, str. 894-905.
- FIŠER, Rastko, LAVRIČ, Henrik, BUGEZA, Miroslav, MAKUC, Danilo. FEM modeling of inter-turn short-circuits in excitation winding of turbogenerator. Przeglęad Elektrotechniczny, 2011, rok 87, 3, str. 49-52.
- ČERNIGOJ, Andrej, GAŠPARIN, Lovrenc, FIŠER, Rastko. Native and additional cogging torque components of PM synchronous motors – evaluation and reduction. Automatika, 2010, god. 51, br. 2, str. 157-165.
- GAŠPARIN, Lovrenc, ČERNIGOJ, Andrej, MARKIČ, Stojan, FIŠER, Rastko. Additional cogging torque components in permanent-magnet motors due to manufacturing imperfections. IEEE transactions on magnetics, Mar. 2009, vol. 45, no. 3, str. 1210-1213.
Study materials
R. Fišer, K. Drobnič, Interno študijsko gradivo v pisni in elektronski obliki (Internal study material).
2. P. Krause, O. Wasynczuk, S. Sudhoff, S. Pekarek, Analysis of Electric Machinery and Drive
Systems, IEEE Press, Wiley, 2013.
3. R. Krishnan, Permanent Magnet Synchronous and Brushless DC Motor Drives, CRC Press, 2010.
4. M. Jadrić, B. Frančić, Dinamika električnih strojeva, Graphis, 2004.
5. A. M. Trzynadlowski, Control of Induction Motors, Academic Press, 2001.
6. C. M.Ong, Dynamic Simulation of Electric Machinery, Prentice Hall, 1998.
7. I. Boldea, S. A. Nasar, Linear Motion Electromagnetic Devices, Taylor&Francis, 2001.
8. U. Riefenstahl, Elektrische Antriebstechnik, B.G. Teubner Stuttgart, Leipzig, 2000.
9. P. Tavner, L. Ran, J. Penman, H. Sedding, Condition Monitoring of Rotating Electrical Machines, IEEE Press, Wiley, 2008.