Power Semiconductor Systems

2nd Level of Study, 1st Year, Winter Semester

Students will acquire knowledge in the theory and applications of modern power semiconductor systems. They will learn to analyze advanced power electronic converters used in modern applications such as renewable energy systems, electromobility, controlled DC and AC electric drives, and battery energy storage systems. Students will gain an understanding of the operation of PWM-controlled rectifiers, bidirectional DC–DC converters, unity power factor converters, indirect frequency converters, multilevel inverters, and other advanced converter topologies. They will also learn how to size unipolar and bipolar power semiconductor devices and become familiar with the characteristics and application areas of modern GaN- and SiC-based semiconductor devices. During laboratory exercises, students will learn how to measure basic power electronic converter circuits and calculate their key parameters. They will gain experience in the use of modern measurement equipment, become familiar with measurement procedures used in power electronics laboratories, and learn how to process measured data and draw appropriate conclusions. Laboratory work will also help students improve their teamwork and presentation skills. As a result, students will acquire comprehensive knowledge that will support their studies in advanced power electronics courses and prepare them for professional careers as power electronics specialists.

1. Modern power semiconductor devices based on GaN and SiC technologies and their application areas. Requirements for power semiconductor systems and trends in modern power electronics.
2. PWM-controlled rectifiers, including bidirectional power flow rectifiers: characteristics, applications, and topologies.
3. Unity power factor converters, including bidirectional power flow converters: characteristics, applications, and topologies.
4. Direct DC–DC converters, including bidirectional power flow converters: characteristics, applications, and topologies.
5. Indirect DC–DC converters, including bidirectional power flow converters: characteristics, applications, and topologies.
6. Soft switching of power semiconductor devices in PWM converters and resonant converters.
7. Converters for DC drives with energy regeneration capability: characteristics, applications, and topologies.
8. Converters for AC drives with energy regeneration capability: characteristics, applications, and topologies.
9. Multilevel and multiphase converters.
10. Sizing and selection of unipolar and bipolar power semiconductor devices.

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[4] J. Dudrik, Návrh, dimenzovanie a ochrana výkonových polovodičových súčiastok. Košice: Elfa, 2010. ISBN:978-80-8086-141-4

[5] J. Dudrik, Výkonové polovodičové systémy podklady na prednášky. 1. vyd. Košice: Technická univerzita v Košiciach, 2019. 88 s. [CD-ROM]. ISBN: 978-80-553-3254-3

[6] L. Bobra, Elektrické pohony a výkonová elektronika. Bratislava: Slovenská technická univerzita, 2013. ISBN: 978-80-227-3858-3