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Power Electronics

Module EI8031

This Module is offered by Chair of High-Power Converter Systems (Prof. Heldwein).

This module handbook serves to describe contents, learning outcome, methods and examination type as well as linking to current dates for courses and module examination in the respective sections.

Module version of SS 2013

There are historic module descriptions of this module. A module description is valid until replaced by a newer one.

Whether the module’s courses are offered during a specific semester is listed in the section Courses, Learning and Teaching Methods and Literature below.

available module versions
WS 2017/8SS 2013WS 2012/3

Basic Information

EI8031 is a semester module in English language at Master’s level which is offered in winter semester.

This module description is valid from WS 2012/3 to SS 2022.

Total workloadContact hoursCredits (ECTS)
150 h 60 h 5 CP

Content, Learning Outcome and Preconditions


Principles of electronic power converters and their application, electronic devices and components in power electronics, cooling of power semiconductors, diode rectifiers, line-commutated converters, DC-DC converters and power supply units (mains adaptors), voltage source inverters, current source inverters, frequency converters, matrix converters, multi-level converters, gate drivers, control of electric machines, space vector concept, pulse width modulation methods

Learning Outcome

At the end of the module, students are capable of:
- evaluating the electromagnetic compatibility and the principles of converter circuits in their respective application
- analyzing non-controlled and controlled rectifiers and mains adaptors
- remembering the advantages and disadvantages of power semiconductors
- analyzing and designing basic rectifier circuits conform to the specified application
- understanding and evaluating the basic behavior of voltage source inverters
- understanding different rectifier concepts
- knowing and evaluating the interaction between rectifiers/inverters and their surrounding systems
- understanding pulse width modulation methods
- knowing space vector concept in electric machine control


Basic knowledge of
- linear algebra, ordinary differential equations,
- complex calculus for alternating current systems
- Laplace-/Fourier-transformation
- Basic knowledge about electrics and electronics
- electric drives (non-obligatory)
- fundamentals in (linear) control theory (non-obligatory)

Courses, Learning and Teaching Methods and Literature

Learning and Teaching Methods

Additionally to the individual lerning methods of the students a more detailed knowledge development is assured by several tutorials, where problems are discussed and individually solved.
As teaching method during lectures and tutorials ex cathedra style is preferred. During tutorials also problems and exercises are provided (discussion, evaluation and analysis of e.g. simulation examples, solution statements, ...) with regards to different rectifier concepts. This allows students to make a connection between application scenarios of different systems presented in the lecturer in the industrial environment. The practical course allows to practice the content of lecture and tutorials by e.g. simulations, e.g. experiencing of transient behaviour of power semiconductor devices.


The following media are used:
- Presentations
- Black- / whiteboard
- Overhead projector
- Manuscript
- Simulation examples
- Tutorials


- Schröder, D. ""Elektrische Antriebe 4 - Leistungselektronische Schaltungen"" Springer-Verlag, Berlin Heidelberg, 1998
- Jäger, R. & Stein, E. , ""Leistungselektronik - Grundlagen und Anwendungen"", 5. Auflage, Vde-Verlag, 2000
- Jäger, R. & Stein, E. , ""Übungen zur Leistungselektronik"", Vde-Verlag, 2000
- Heumann, K. ""Grundlagen der Leistungselektronik"", Teubner Verlag, 6. Auflage, 1996
- Bose, B. K. ""Modern power electronics and ac drives"", Prentice Hall International, 2001
- Vas, P., ""Vector control of AC machines"". New York: Oxford University Press, 1990
- Valentine, R., ""Motor control electronics handbook"". New York: McGraw-Hill, 1998

Module Exam

Description of exams and course work

During a written exam (90 min) at the end of the module students solve problems in regards to given rectifier types, applications or similar setups to test their ability to evaluate rectifiers and develop concepts, e.g based on power semiconductor devices without additional aids.

Exam Repetition

There is a possibility to take the exam in the following semester.

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