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Power Electronic Systems I
Last Updated: 2026-06-01 11:31:04
Abstract
Basics of the switching behaviour, gate drive and snubber circuits of power semiconductors are discussed. Soft-switching concepts, resonant operation of non-isolated as well as soft switching of isolated DC/DC converters are analysed in detail. Finally, the space vector modulation of three-phase inverters is introduced and the main power components are designed for typical industry applications.
Objective
Detailed understanding of the principle of operation and modulation of advanced power electronics converter systems, especially of zero voltage switching and zero current switching non-isolated and isolated DC/DC converter systems and three-phase voltage DC link inverter systems. Furthermore, the course should convey knowledge on the switching frequency related losses of power semiconductors and introduce the concept of space vector calculus which provides a basis for the comprehensive discussion of three-phase PWM converters systems in the lecture Power Electronic Systems II.
Content
Basics of the switching behavior and gate drive circuits of power semiconductor devices and auxiliary circuits for minimizing the switching losses are explained. Furthermore, zero voltage switching, zero current switching, and resonant DC/DC converters are discussed in detail; the operating behaviour of isolated full-bridge DC/DC converters is detailed for different secondary side rectifier topologies; the concept of space vector calculus for analysing three-phase systems is introduced; finally, phase-oriented and space vector modulation of three-phase inverter systems are discussed related to voltage DC link inverter systems and the design of the main power components based on analytical calculations is explained.
Resources
Lecture Notes
Comprehensive lecture notes and associated exercises including correct answers are available in the moodle course of the lecture.
Learning Materials (Links)
- Main link
- Information
General Information
- Language
- English
- Levels
- MSC
- Frequency
- Yearly recurring
Examination
- Type
- session examination
- Mode
- written 120 minutes
- Aids
- Written summary (10 A4 sheets of paper, double sided), pocket calculator without comm. interfaces. No lecture slides / notes, no exercises / solutions, no old exams, no communication devices.
Course Components
| Type | Title | Time & Place | Hours |
|---|---|---|---|
| lecture with exercise | Power Electronic Systems I |
|
4 h weekly |
Offered In
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Vertiefung: Electric Energy Engineering (The core courses and specialisation courses below are a selection for students who wish to specialise in the area of "Electric Energy Engineering", see . The individual study plan is subject to the tutor's approval.)
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Kernfächer (These core courses are particularly recommended for the field of "Energy and Power Electronics". You may choose core courses form other fields in agreement with your tutor. A minimum of 24 credits must be obtained from core courses during the MSc EEIT.)
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Wahlfächer (Diese Kurse sind besonders empfohlen, andere ETH-Kurse aus dem Feld Energy Science and Technology im weiteren Sinne können in Absprache mit dem Tutor gewählt werden.)
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