Tasks, structure and types of electric drives. Basic properties and power states. Static stability. Power system mechanics and reduction of mechanical dimensions. Mechanical transients. Static characteristics of working and breaking for DC motors and three-phase asynchronous and synchronous motors. Synchronous motors with permanent excitation. General electromechanical model of an electrical motor. Variable voltage supply for DC motors. Regulated electric drives. Cascade regulation. Energy flow and optimisation of an electric drive. Choice of a motor. Protection and maintenance of drives. Trends of development.

Knowledge and skills acquired

Knowledge of drive types, their properties and characteristics. Capability to calculate and choose a drive system for a specific application.

Teaching methods

Lectures, auditory and laboratory exercises

Student requirements

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Monitoring of students

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Student assessment

Writing laboratory reports.

Obligatory literature

1. 1 Jurković, B. Elektromotorni pogoni Školska knjiga, Zagreb, 1990

2. 2 W.Leonhard Control of Electrical Drives Springer, New York, 1996.

3. 3 Jean-Paul Louis Control of Synchronous Motors Wiley-ISTE , New York, 2011.

4. 4 Bose, B. K. Modern Power Electronics and AC Drives Prenice Hal, 2002.

5. 5 Krause, Paul C.; Wasynczuk, Oleg; D. Sudhoff, Scott Analysis of Electric Machinery and Drive Systems Wiley-IEEE Press, 2002

6. 6 Ambrožič, V, Zajec, P. Električni servo pogoni Graphis Zagreb, 2019.

Pretraži literaturu na:

1. 1 M. Jadrić, B. Frančić Dinamika električnih strojeva Graphis, Zagreb, 2000.

2. 2 Zhang, P. Advanced Industrial Control Technology Elsevier, Oxford, 2010.

3. 3 Fouad, G. AC Electric Motors Control: Advanced Design Techniques and Applications Wiley, London, 2013.

4. 4 De Doncker, R., Pulle, D.W.J., Veltman, A. Advanced Electrical Drives, Analysis, Modeling, Control Springer, London, 2011.

5. 5 Kaltjob, P.O.J. Mechatronic Systems and Process Automation: Model-Driven Approach and Practical Design Guidelines, 1st Edition CRC Press, Taylor & Francis group, London, 2018.

Written and oral exam.

Course assessment

Conducting university questionnaires on teachers (student-teacher relationship, transparency of assessment criteria, motivation for teaching, teaching clarity, etc.). Conducting Faculty surveys on courses (upon passing the exam, student self-assessment of the adopted learning outcomes and student workload in relation to the number of ECTS credits allocated to activities and courses as a whole).

Overview of course assesment

1. observe the difference between the basics elements, characteristics and operating conditions of electric motor drives

2. propose operating conditions of the selected electric motor that meet the requirements of an electric motor drive

3. determine the static and dynamic characteristics of DC, asynchronous and synchronous motor

4. recommend energy and control characteristics of an electronic frequency converter for default operating requirements

5. specify which modulation method should be chosen for the selected control principle of the electrical machine

6. propose the optimal working point of an electric motor depending on the required mechanical characteristics of load

7. design and choose the type and power of an electric motor suitable for usage in a given electric motor drive

Aktivnosti studenta: Vidi tablicu aktivnosti