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Electrical Drives

* Exchange students do not have to consider this information when selecting suitable courses for an exchange stay.

Course Unit Code430-2309/03
Number of ECTS Credits Allocated5 ECTS credits
Type of Course Unit *Compulsory
Level of Course Unit *First Cycle
Year of Study *Second Year
Semester when the Course Unit is deliveredSummer Semester
Mode of DeliveryFace-to-face
Language of InstructionCzech
Prerequisites and Co-Requisites Course succeeds to compulsory courses of previous semester
Name of Lecturer(s)Personal IDName
SLA10Ing. Václav Sládeček, Ph.D.
STE37Ing. Libor Štěpanec, Ph.D.
Summary
The subject is focused on the understanding of the basic principles, design and operations of DC and AC electrical drives. The content of this subject is based on the knowledge of electronics, electrical machines, mechatronic systems and cybernetics.
Learning Outcomes of the Course Unit
The main aim of the subject is to obtain theoretical knowledge of the area of electrical drives and practial skills with their applications.
The obtained information creates the knowledge base of bachelor, who applies the electrical drives.
Course Contents
Lectures:
Kinematics and mechanics of electrical drives.
Warming and energetics of electrical drives.
DC drives with separately excited DC motor (permanent magnet motor), Mechanical characteristics, speed control, braking.
Structures of DC drives with Ward-Leonard rotary converter, thyristor controlled rectifiers and DC/DC converters.
Speed and current control of DC drives.
Reversible DC drives with thyristor controlled rectifiers and DC/DC converters.
Drives with serial DC motors. Mechanical characteristics, speed control, braking.
Drives with induction motors. Mechanical characteristics, braking.
Speed control of induction motors. Frequency speed scalar control.
Vector control of induction motors.
Direct torque control of induction motors.
Dimensioning of induction motors at frequency control.
Softstart of induction motors.
Drives with synchronous motors. Mechanical characteristics, vector control.
Drives with electronically commutated (EC) motors. Drives with stepping motors.
Drives with switched reluctance motors.
Electric drives in cars. Future of electric drives.

Exercises:
The safety for working in laboratories, the content of exercises, conditions for credits.
Solving examples of the topics listed in lectures.

Laboratories:
Measurement of electromechanical transient processes using DC drive
Behaviour of electrical drive with induction motor fed by a frequency converter

Projects:
Results of laboratory work processing:
1-Measurement of electromechanical transient processes using DC drive
2-Behaviour of electrical drive with induction motor fed by a frequency converter
Recommended or Required Reading
Required Reading:
BOLDEA, I.-NASAR, S. A.: Electric Drives. Third Edition, CRC Press, 2016. ISBN 978-1-4987-4820-9.
Leonhard, W.: Control of Electrical Drives. Springer-Verlag Berlin Heidelberg New York, ISBN 3-540-59380-2, 1997.
Neborák, I. - Sládeček, V.: Elektrické pohony. Učební texty pro kombinované a distanční studium. VŠB-TU Ostrava, 2017.
Neborák, I. - Sládeček, V. - Palacký, P. - Vrána, V.: Elektrické pohony, Syllaby do cvičení. VŠB-TU Ostrava, 2002.
BOLDEA, I.-NASAR, S. A.: Electric Drives. Third Edition, CRC Press, 2016. ISBN 978-1-4987-4820-9.
Recommended Reading:
BOLDEA, I.-NASAR, S. A.: Electric Drives. Third Edition, CRC Press, 2016. ISBN 978-1-4987-4820-9.
LEONHARD, W.: Control of Electrical Drives. Springer Verlag, Berlin, Heidelberg, New York, Tokyo, 1997.
Neborák, I.- Vrána, V. : Elektrické pohony-sbírka řešených příkladů. Skriptum VŠB Ostrava, 1990.
Čermák, T. : Elektrické pohony. Skriptum VŠB Ostrava, 1982.
Flajtingr, J. – Kule, L.: Elektrické pohony se střídavými motory a polovodičovými měniči. Západočeská univerzita v Plzni, 2002, 142 stran. ISBN 80-7082-919-2.
Javůrek, J.: Regulace moderních elektrických pohonů. GRADA PUBLISHING, a.s., Praha, 2003, 264 stran. ISBN 80-247-0507-9.

Planned learning activities and teaching methods
Lectures, Tutorials, Experimental work in labs
Assesment methods and criteria
Task TitleTask TypeMaximum Number of Points
(Act. for Subtasks)
Minimum Number of Points for Task Passing
Exercises evaluation and ExaminationCredit and Examination100 (100)51
        Exercises evaluationCredit40 (40)20
                Test 1Written test10 5
                Test 2Written test10 5
                Ověřování znalostíWritten test10 5
                Laboratorní úlohyLaboratory work10 5
        ExaminationExamination60 (60)20
                Písemná zkouškaWritten examination30 10
                Ústní zkouškaOral examination30 10