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227-0113-00L 4 Credits BSC D-MAVT
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Power Electronics

Leistungselektronik

Lecturers & Examiners: Prof. em. Dr. Johann Walter Kolar
VVZ CR n/a

Last Updated: 2026-02-05 14:55:41

Abstract

Fields of application of power electronic systems. Principle of operation of basic pulse-width modulated and line-commutated power electronic converters, analysis of the operating behavior and of the controloriented behavior, converter design. Reduction of effects of line-commutated rectifiers on the mains, electromagnetic compatibility.

Objective

Fields of application of power electronic systems. Principle of operation of basic pulse-width modulated and line-commutated power electronic converters, analysis of the operating behavior and of the controloriented behavior, converter design. Reduction of effects of line-commutated rectifiers on the mains, electromagnetic compatibility.

Content

Basic structure of power electronic systems, applications. DC/DC converters, high frequency isolation, control oriented modeling / state-space averaging and PWM switch model. Power semiconductors, non-idealities, cooling. Magnetic components, skin and proximity effect, design. Electromagnetic compatibility. Single-phase diode bridge with capacitive smoothing, effects on the mains, power factor correction / PWM rectifier. Pulse-width modulated single-phase and three-phase full bridge converter with impressed DC voltage, modulation schemes, space vector calculus. Line-commutated single-phase full bridge with impressed output current, commutation, phase-control, inverter operation, commutation failure. Line-commutated three-phase full bridge converter, impressed output voltage, impressed output current / phase-control. Parallel connection of three-phase line-commutated thyristor circuits, inter-phase transformer. Anti-parallel connection of three-phase line-commutated thyristor bridge circuits, four-quadrant DC motor drive. Load-resonant converters, state plane analysis.

Resources

Lecture Notes

Lecture notes and associated exercises including correct answers, simulation program for interactive self-learning including visualization/animation features.

General Information

Language
German
Levels
BSC
Frequency
Yearly recurring

Examination

Type
session examination
Mode
written 180 minutes
Aids
Vorlesungsskript, in den Rechenübungen behandelte Beispiele, schriftliche Zusammenfassung.

Course Components

Type Title Time & Place Hours
lecture with exercise Leistungselektronik
  • Thu 13:15-17:00 (ETF C 1)
4 h weekly

Offered In