CZECH TECHNICAL UNIVERSITY IN PRAGUE
STUDY PLANS
2023/2024

# Fundametals of Electric Drives

Code Completion Credits Range Language
BD5B14ZPO Z,ZK 4 14KP+6KL Czech
Garant předmětu:
Lecturer:
Pavel Kobrle
Tutor:
Pavel Kobrle
Supervisor:
Department of Electric Drives and Traction
Synopsis:

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.

Requirements:

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

Syllabus of lectures:

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.

Syllabus of tutorials:

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

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

Study Objective:
Study materials:

[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 &amp; Sons, Inc., New York, March 2003

Note:
Time-table for winter semester 2023/2024:
 06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00 roomKobrle P.11:00–12:30(lecture parallel1) roomT2:F1-10Kobrle P.07:30–09:00(lecture parallel1parallel nr.101)Dejvice halyLaborator
Time-table for summer semester 2023/2024:
Time-table is not available yet
The course is a part of the following study plans:
Data valid to 2024-02-23
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