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Power Electronic Systems II
Last Updated: 2026-06-03 00:14:20
Abstract
The course presents control oriented modelling of modern power electronic systems for controlling power electronic circuits. Furthermore, modern concepts and the operation of high switching frequency 3-phase AC/DC converters (& AC/AC matrix inverters) are presented. Exercises using also simulation tools as e.g. PLECS are used to consolidate the concepts discussed.
Objective
The objective of this course is to convey knowledge of structures, operating ranges, and control concepts of modern power electronic converter systems. Furthermore, the operation of recent concepts and operation modes of high switching frequency AC/DC converters and AC/AC matrix inverters should be understood. In general, a deeper understanding of multi-pulse power converter circuits, transformers, and electromechanical energy converters should be developed and in-depth details of power electronic systems should be understood. In the exercises the theoretical concepts are also investigated by using an electric circuit simulator (PLECS), so that experience with the simulation of electronic circuits is obtained.
Content
Converter dynamics and control: State Space Averaging, transfer functions, controller design, impact of the input filter on the converter transfer functions. Performance data of single-phase and three-phase systems: effect of different loss components on the efficiency characteristics, linear and non-linear single phase loads, power flow of general three-phase systems, space vector calculus. Modeling and control of three-phase PWM rectifiers: System characterisation using rotating coordinates, control structure, transfer functions, operation with symmetrical and unsymmetrical mains voltages. Unidirectional AC/DC converters and AC/AC converters: Voltage and current DC link converters, indirect and direct matrix converters. Scaling laws of transformers and electromechanical actuators.
Resources
Lecture Notes
Lecture notes and associated exercises including correct answers, simulation program for interactive self-learning.
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 II |
|
4 h weekly |
Offered In
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Track: Electric Energy Engineering (The core courses and specialization courses below are a selection for students who wish to specialize in the area of "Energy and Power Electronics", see . The individual study plan is subject to the tutor's approval.)
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Specialization Courses (These specialization courses are particularly recommended for the area of "Energy and Power Electronics", but you are free to choose courses from any other field in agreement with your tutor. Semester / Research Projects are not allowed in this category. A minimum of 40 credits must be obtained from specialization courses during the Master's Programme.)
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Electives (These courses are particularly recommended, other ETH-courses from the field of Energy Science and Technology at large may be chosen in accordance with your tutor.)
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