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227-0248-00L 6 Credits MSC D-ITET , D-MAVT , D-INFK
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Power Electronic Systems II

VVZ CR n/a

Last Updated: 2026-06-01 11:33:22

Abstract

This course details structures, operating ranges, and control concepts of modern power electronic systems to provide a deeper understanding of power electronic circuits and power components. Most recent concepts of for example high switching frequency AC/DC converters are presented. Simulation exercises, implemented in the simulation programme 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 systems. Further objectives are: to know most recent concepts and operation modes of for example high switching frequency AC/DC converters or AC/AC matrix inverters; to develop a deeper understanding of multi-pulse power converter circuits, transformers, and electromechanical energy converters; and to understand in-depth details of power electronic systems. Simulation exercises, implemented in the electric circuit simulator PLECS, are used to consolidate the presented theoretical concepts.

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 characterization using rotating coordinates, control structure, transfer functions, operation with symmetrical and unsymmetrical mains voltages. Scaling laws of transformers and electromechanical actuators. Drives with permanent magnet synchronous machines: basic function, modeling, field-oriented control. Unidirectional AC/DC converters and AC/AC converters: voltage and current DC link converters, indirect and direct matrix converters.

Resources

Lecture Notes

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

Learning Materials (Links)

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
  • Tue 14:15-18:00 (GLC E 29.1)
4 h weekly

Offered In