Subject description - BD5B14ZPO

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BD5B14ZPO Fundametals of Electric Drives
Roles:PV Extent of teaching:14KP+6KL
Department:13114 Language of teaching:CS
Guarantors:  Completion:Z,ZK
Lecturers:Kobrle P. Credits:4
Tutors:Kobrle P. Semester:Z


The course explains the basic building blocks of the electric drive. The designof components, electrical drives, typical load characteristics. Further are discussed the basic control structures for drives with DC and AC motors and components required for their implementation as the structure of a control computer circuits to switch from analog signals to digital and implementation regulators themselves in digital form.

Course outlines:

1. Definition of electric drive, logic control drives.
2. Continuous control, transfer functions, static and dynamic behavior of a controlled system.
3. Transition from analogue to digital signal processing, time sampling and amplitude quantization.
4. Differential equations and digital control algorithms.
5. Digital system in the time and frequency domains.
6. Calculation of PSD controller.
7. Motion equation, solving of mechanical problems in electric drives; torques.
8. Analysis of operating conditions, electromechanical transient phenomena.
9. Drives with separately excited DC motors, mathematical model.
10. Drives with series DC motors, mathematical model.
11. Drives with induction motors, mathematical model.
12. Speed control of drives with induction machines, principle of field oriented control a direct torque control.
13. Drives with synchronous motors, mathematical model, start up.
14. Excitation systems of synchronous machines, speed control of drives with synchronous motors.

Exercises outline:

1. Revision of knowledge from electrical machines and power electronics
2. Introduction of the laboratory of electric drives, safety regulations, laboratory order
3. Logic control of the electric drives
4. Calculation of the behavior of the digital system in the time and frequency domains
5. Calculation of PSD controller.
6. Transients in electric drives, measurement of time constants
7. Measurement of moment of inertia and dynamic torque characteristics of induction motor
8. Cyclic loading of the drive
9. DC motor supplied from reverse rectifier - mechanical drive characteristic measurement
10. Speed control of induction motor with frequency inverter
11. Different manners of induction motor start-up
12. Synchronous motor supplied from current source inverter
13. Doubly fed motor
14. Assesment


[1] CHIASSON, John Nelson. Modeling and high performance control of electric machines. Hoboken: Wiley, 2005. ISBN 0-471-68449-X.
[2] LEONHARD, Werner. Control of electrical drives. 3rd ed. Berlin: Springer, 2001. xviii, 460 s. ISBN 3-540-41820-2.
[3] Ned Mohan, William P. Robbins, Tore M. Undeland: WIE Power Electronics: Converters, Applications and Design, Media Enhanced , 3rd Edition, John Wiley & Sons, Inc., New York, March 2003


Sufficient knowledge of electric machines (construction, principles, characteristic) and power electronics converters (topologies, principles, characteristics, control).

Subject is included into these academic programs:

Program Branch Role Recommended semester
BKEEK_2016 Common courses PV 5

Page updated 24.7.2024 09:51:47, semester: Z/2024-5, Z,L/2023-4, L/2024-5, Send comments about the content to the Administrators of the Academic Programs Proposal and Realization: I. Halaška (K336), J. Novák (K336)