Electronic Power Converters

Course Description

The content of this course are the basic converter topologies used to convert electricity characteristics and control energy flow. Emphasis is placed on typical representatives of rectifier, inverter and DC and AC converters used in electric motor drives, process industries, power systems, renewable sources, electric vehicles. In addition to getting to known the functions of these topologies, the basic features and models of passive and active semiconductor components used in the realization of converter devices are presented. The content of this course also includes the basics of converter control to minimize impact of converter on load and electrical network and increase conversion efficiency.

Learning Outcomes

  1. Describe the basic topologies of electronic power converters
  2. Define the basic characteristics of passive and magnetic components used in electronic power converters
  3. Compare the properties and characteristics of semiconductor components
  4. Understand the influence of temperature on the electrical characteristics of semiconductor components
  5. Analyze the operation of electronic power converters by conversion type
  6. Breakdown the complex system of an power converter into its basic components
  7. Compare the properties of different types of electronic power converters
  8. Identify the negative effects of the operation of electronic power converters on power grid and loads
  9. Explain the basic types of electronic power converters control
  10. Give an example of the use of a certain type of power converter in electric drives, process industry, power system, renewable energy sources, electric vehicles

Forms of Teaching

Lectures

Lectures are interactive, with the use of modern teaching methods and tools.

Exercises

Auditory exercises are included in the lectures.

Laboratory

Laboratory exercises are a combination of simulation exercises and exercises on physical models in the laboratory.

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Threshold Percent of Grade
Laboratory Exercises 50 % 20 % 50 % 20 %
Mid Term Exam: Written 30 % 25 % 0 %
Final Exam: Written 30 % 25 %
Final Exam: Oral 30 %
Exam: Written 50 % 50 %
Exam: Oral 30 %

Week by Week Schedule

  1. Basic structures of power electronics semiconductors components, Power semiconductor devices on-state losses calculation, Semiconductor devices current ratings, Heat transfer in semiconductor devices
  2. Diode rectifier operation for different loads (R, RL, RLE, C), Commutation for a single-phase diode rectifier, Three-phase center-tapped rectifier operation, Three-phase full-wave rectifier operation, Multipulse diode rectifiers
  3. Full-wave phase-controlled rectifier operation for different loads (R, RL, RLE), Output and control characteristics of a single-phase full-wave phase-controlled rectifier, Center-tapped three-phase phase-controlled rectifier operation, Full-wave three-phase phase-controlled rectifier operation, Phase-controlled rectifiers application examples
  4. Fundamentals of DC-DC converters control (pulse-width modulation), Buck converter operation, Boost converter operation, Buck-boost converter operation, Real components influence on DC-DC converters operation, Switching frequency limit in DC/DC converters, Two- and four-quadrant chopper operation, DC-DC converters without galvanic isolation application examples
  5. Forward converter operation, Forward converter transformer equations, Full-bridge converter operation, Full-bridge converter transformer equations, Flyback converter operation, Flyback converter transformer equations, DC-DC converters with galvanic isolation application examples
  6. Resonant converters' common features, DC-DC resonant converters fundamentals and basic topologies, DC-DC resonant converters application examples, Soft switching converters
  7. Parallel and series resonant converters, Semiconductor voltage and current stress in resonant converters, Resonant converters output voltage control, Resonant inverters fundamentals and basic topologies, Resonant inverters application examples
  8. Midterm exam
  9. Current- and voltage-sourced inverters, Half- and full-bridge inverters, Voltage-source inverter operation for different loads (RL, active source), Power control fundamentals, Harmonic reduction and elimination techniques, Carrier-based pulse-width modulation, Pulse width modulated voltage fundamental harmonic
  10. Three-phase inverter operation, Six-step modulation, Three-phase inverter carrier-based pulse width modulation, Overmodulation, Non-sinusoidal pulse-width modulation (zero-sequence voltage), Space vector pulse width modulation, Transformer-coupled inverters, Grid-tied inverters
  11. AC-AC converters operation for different loads (R, RL), Three-phase AC-AC converter for inductance machine power supply, Cycloconverter fundamentals, Matrix converter fundamentals, Indirect AC-AC converter topologies
  12. Active front-end rectifiers fundamentals and basic topologies, Basics of control of active front-end rectifiers, Voltage and current controlled active front-end rectifiers in voltage mode, Load controlled active front-end rectifiers in voltage mode
  13. Active front-end rectifiers as active filters, Specialized active front-end rectifiers topologies for high power applications, Active front-end rectifiers application examples for power systems and electrical drives
  14. Basic structure, static and dynamic characteristics of power diodes, Basic structures and I-V characteristics of power thyristors, Basic structure, static and dynamic characteristics of power MOSFETs, Basic structure, static and dynamic characteristics of IGBTs, Semiconductor device protections
  15. Final exam

Study Programmes

University graduate
Audio Technologies and Electroacoustics (profile)
Free Elective Courses (2. semester)
Communication and Space Technologies (profile)
Free Elective Courses (2. semester)
Computational Modelling in Engineering (profile)
Free Elective Courses (2. semester)
Computer Engineering (profile)
Free Elective Courses (2. semester)
Computer Science (profile)
Free Elective Courses (2. semester)
Control Systems and Robotics (profile)
Free Elective Courses (2. semester)
Data Science (profile)
Free Elective Courses (2. semester)
Electrical Power Engineering (profile)
Elective Courses of the Profile (2. semester)
Electric Machines, Drives and Automation (profile)
(2. semester)
Electronic and Computer Engineering (profile)
Free Elective Courses (2. semester)
Electronics (profile)
Free Elective Courses (2. semester)
Information and Communication Engineering (profile)
Free Elective Courses (2. semester)
Network Science (profile)
Free Elective Courses (2. semester)
Software Engineering and Information Systems (profile)
Free Elective Courses (2. semester)

Literature

J. Kassakian, M. Schlecht, G. Verghese (2000.), Osnove učinske elektronike I. dio (prijevod)učinske, Graphis
Daniel W. Hart (1997.), Introduction to Power Electronics, Prentice Hall
V. Šunde, Z. Benčić, Ž. Jakopović (2021.), Osnove učinske elektronike - Simulacijsko modeliranje, Graphis
N. Mohan, T. Undeland, W. Robins (2003.), Power Electronics: Converters, Applications and Design, John Wiley & Sons
Muhammad H. Rashid (2018.), Power Electronics: Devices, Circuits And Applications, Pearson India

For students

General

ID 222492
  Summer semester
5 ECTS
L1 English Level
L1 e-Learning
45 Lectures
26 Laboratory exercises

Grading System

87 Excellent
75 Very Good
62 Good
50 Acceptable