Course detail

Electric Drive Systems

FSI-VAP Acad. year: 2027/2028 Winter semester

The subject is focused on the issue of electric drives in automation. Attention is focused first on modern semiconductor elements used in electronics (inverters) for electric drives. Furthermore, the electric drive is defined, the mechanics, heating and energetics of electric drives are discussed. A considerable area is devoted to the control and regulation of electric drives. Here, basic knowledge from the subjects that were taught earlier is used, which is developed on a theoretical and practical level towards the issue of electric drives. Subsequently, the basic properties of individual electric drives are addressed. These are drives with direct current motors, with asynchronous and synchronous motors. The student will also gain knowledge about drives with special motors, specifically stepper and linear motors. Considerable emphasis is given to the description of mathematical and simulation models of motors and drives as well as the analysis of the cascade control structure. Part of the theoretical knowledge is also the practical verification of selected properties of drives in a laboratory exercise.

Language of instruction

Czech

Number of ECTS credits

5

Supervisor

Ing. Jiří Kurfürst, Ph.D.

Department

Institute of Automation and Computer Science

Entry knowledge

Knowledge of mathematics, physics, electrical engineering, mechanics and the basics of automatic control is assumed, at the level of university courses completed so far.

Rules for evaluation and completion of the course

aboratory classes are completed with the award of a course credit (granted in the 13th week of the semester). Continuous assessment takes place during the laboratory classes. The main requirements for obtaining the course credit are 100% attendance and successful completion of a written credit test.

If a student is absent from a laboratory class, the missed class must be made up. The method of making up the missed class will be determined by the lecturer or the course coordinator. Further details are communicated and explained to students at the beginning of the semester.

Obtaining the course credit is a prerequisite for taking the final examination.

The examination consists of a written part followed by an oral examination. In the written part, students are required to answer five assigned questions. The oral examination assesses the student's understanding of and ability to discuss the topics covered in the course.

The written part, oral part, and overall examination performance are graded according to the ECTS grading scale.

Aims

The aim of the course is to acquire theoretical and practical knowledge and experience in the field of electric drives. This is an addition to previously completed subjects of a general nature, which are expanded towards use in automation and informatics. In the sense of the above annotation and outline, the student will acquire extensive and comprehensive knowledge in the field of electric drives, which will enable him to be involved in the solution of various technical problems in an erudite manner in industrial engineering and electrical engineering practice.

Study aids

Study supports and study materials for the course are listed in the course literature. This information is also published in e-learning. This is also discussed in detail in the introductory lecture of the course and in the first laboratory exercise (in the combined form of study in the first consultation or laboratory exercise of the course).

The study programmes with the given course

Programme N-AIŘ-P: Applied Computer Science and Control, Master's, compulsory

Type of course unit

 

Lecture

39 hours, optionally

Syllabus

Block A – Electronic Components and Power Converters



  1. Components of electronic circuits and modern electronic devices used in electric drives. Basic passive components and semiconductor devices.

  2. Basic semiconductor power converters. Classification. Rectifiers.

  3. DC-DC converters. Inverters.

  4. Frequency converters. Microprocessor-based control systems. Basic functions of power supplies, communication and diagnostics.


Block B – Electric Drive Mechanics and Control



  1. Definition of an electric drive. Advantages and disadvantages. Types of driven machinery.

  2. Kinematics and mechanics of electric drives. Thermal behaviour and energy aspects of electric drives.

  3. Control of electric drives and analysis of control systems. Sensors, feedback and principles of PID control.


Block C – Types of Electric Drives and Their Applications



  1. Drives with DC motors and permanent magnet motors. Controlled electric drives.

  2. Drives with induction motors.

  3. Drives with synchronous motors.

  4. Special types of electric drives. Stepper motors.

  5. Drives with linear motors. Mechanical components of electric drives.


Proposed Laboratory Exercises Organised into Thematic Blocks


Block L1 – Electronic Components, Power Supplies and Basic Control



  1. Characteristics of electronic components.

  2. Design and analysis of an AC-powered DC power supply.

  3. On-off (two-position) control.

  4. Controllers with pulse-width modulation (PWM) output.

  5. PID controller using operational amplifiers.

  6. Filters and challenges associated with switching inductive loads.


Block L2 – Controlled Electric Drives



  1. Speed control of a DC motor with an encoder (MAXON).

  2. PID control of a DC motor.

  3. Cascade control and optimisation.

  4. Controlled drive with an induction motor and a variable frequency drive (VFD).

  5. Controlled drive with an induction motor and a variable frequency drive (VFD). Block diagram of a position servo system. Practical verification of vector control.


Block L3 – Industrial Practice


- Practical training in a manufacturing company, including a guided industrial site visit.

Laboratory exercise

26 hours, compulsory

Syllabus

1. Characteristics of electronic components.


2. Design and analysis of a DC power supply.


3. Two-position control.


4. Pulse-wave output controllers (PWM).


5. PID controller with operational amplifiers.


6. Filters and problems of switching inductive loads.


7. Speed ​​control of a DC motor with an encoder (MAXON).


8. PID control of a DC motor.


9. Cascade control and optimization.


10. Controlled drive with an asynchronous motor and a frequency converter.


11. Controlled drive with an asynchronous motor and a frequency converter, block diagram of a position servomechanism, practical verification of vector control.


12.Practical training in a manufacturing company.


13. Excursion to a manufacturing company.