| Course Unit Code | 430-8741/01 |
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| Number of ECTS Credits Allocated | 6 ECTS credits |
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| Type of Course Unit * | Compulsory |
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| Level of Course Unit * | Second Cycle |
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| Year of Study * | First Year |
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| Semester when the Course Unit is delivered | Winter Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | There are no prerequisites or co-requisites for this course unit |
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| Name of Lecturer(s) | Personal ID | Name |
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| PAV15 | Ing. Tomáš Pavelek, Ph.D. |
| HAV278 | Ing. Aleš Havel, Ph.D. |
| Summary |
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| Power electronics is a branch which intensively enters all technical areas of the present living. Practical utilization of the conversion principle of the electric energy via semiconductor switching devices requires apart from the knowledge about principle and function of elementary semiconductor converters also especially about their industrial and commercial applications. The subject provides pieces of knowledge to students in field of applied and commercial electronics, power electronics, electric drives and other segments of electrical engineering. |
| Learning Outcomes of the Course Unit |
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| Knowledge obtained in this subject enable students good orientation in power electronics applications, e.g. applications with UPS, welding power sources, AC power regulators and in applications with electrical drives. This subject enables students explore parts of power semiconductor systems and apply obtained information by construction in practice. |
| Course Contents |
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Lectures
Ideal and real semiconductor switch, scope, overview and utilization of power semiconductor components.
Power semiconductor switches – diodes, thyristors, switchable thyristors, triacs.
Power semiconductor switches – bipolar transistors, field effect transistors, IGBT.
Power losses and cooling of power semiconductor components.
Uncontrolled rectifiers – circuit diagrams and principles, influence of the supply grid and the load.
Controlled rectifiers – circuit diagrams and principles, influence of the supply grid, load and control angle.
DC/DC converters – circuit diagrams and principles, analysis of the output voltage and current.
DC/DC converters – multi quadrant topologies, control methods, analysis of the output voltage and current.
Voltage inverters – power circuits, utilization, function and voltage and current waveforms.
Current inverters – power circuits, utilization, function and voltage and current waveforms.
Control methods of inverters – possibilities of output frequency, current and voltage control.
AC/AC converters – circuit diagrams, utilization, function and voltage and current waveforms.
Indirect frequency converters with voltage and current DC link types – function, utilization and waveforms.
Switching power supplies – forward and flyback converter.
Exercises
Solved examples from selected chapters of power semiconductor systems:
Average and RMS values, power losses of diodes, thyristors and transistors.
Design and calculation of colling systems for PSS.
Uncontrolled rectifiers.
Controlled rectifiers.
DC/DC converters.
Voltage inverters.
AC/AC converters.
Simulation of power semiconductor converters, their losses, cooling – demonstration of OrCAD/Pspice SW.
Test 1 – Power semiconductor components, cooling and rectifiers.
Test 2 – DC/DC converters, Inverters, AC/AC converters, switching power supplies.
Laboratory exercises
Laboratory task from controlled rectifiers.
Laboratory task from DC/DC converters.
Laboratory task from voltage inverters.
Laboratory task from AC/AC converters.
Projects
Evaluation of laboratory measurements from laboratory exercises:
Measurement report from controlled rectifiers.
Measurement report from DC/DC converters.
Measurement report from voltage inverters.
Measurement report from AC/AC converters.
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| Recommended or Required Reading |
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| Required Reading: |
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Heumann, K.: Basic Principles of Power Electronics. Springer-Verlag Berlin Heidelberg New York, ISBN 3-540-16138-4, 1986.
Rashid, M. H.: Power Electronics. Prentice-Hall International, Inc. ISBN 0-13-334483-5, 1993.
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| Chlebiš, P.: Výkonové polovodičové systémy. Učební texty pro kombinované a distanční studium. VŠB-TU Ostrava, 2005. |
| Recommended Reading: |
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Heumann, K.: Basic Principles of Power Electronics. Springer-Verlag Berlin Heidelberg New York, ISBN 3-540-16138-4, 1986.
Rashid, M. H.: Power Electronics. Prentice-Hall International, Inc. ISBN 0-13-334483-5, 1993.
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Vondrášek, F.: Výkonová elektronika, svazek I., II. Skriptum ZČU Plzeň 1994.
Vondrášek, F.: Výkonová elektronika, svazek III. Skriptum ZČU Plzeň 1998.
Oetter, J.: Výkonová elektronika pre elektrické pohony. ALFA Bratislava 1988.
Heumann, K.: Basic Principles of Power Electronics. Springer-Verlag Berlin Heidelberg New York, ISBN 3-540-16138-4, 1986.
Rashid, M. H.: Power Electronics. Prentice-Hall International, Inc. ISBN 0-13-334483-5, 1993.
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| Planned learning activities and teaching methods |
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| Lectures, Tutorials, Experimental work in labs |
| Assesment methods and criteria |
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| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
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| Exercises evaluation and Examination | Credit and Examination | 100 (100) | 51 |
| Exercises evaluation | Credit | 40 (40) | 25 |
| Kontrolní test č.1 | Written test | 10 | 3 |
| Kontrolní test č.2 | Written test | 10 | 3 |
| Laboratorní úloha č.1 | Laboratory work | 4 | 1 |
| Laboratorní úloha č.2 | Laboratory work | 4 | 1 |
| Laboratorní úloha č.3 | Laboratory work | 4 | 1 |
| Laboratorní úloha č. 4 | Laboratory work | 4 | 1 |
| Laboratorní úloha č. 5 | Laboratory work | 4 | 1 |
| Examination | Examination | 60 (60) | 11 |
| Ústní zkouška | Oral examination | 20 | 0 |
| Písemná zkouška | Written examination | 40 | 11 |