Chair of Power Electronics

Modeling and Control of Power Electronics Converters

Lecturer:

Prof. Dr.-Ing. Marco Liserre and staff

Target group:

Students of the master courses “Electrical and Information Engineering” and “Electrical and Information Engineering and Business Management”

Recommended prerequisites:

Introduction to electrical energy technology, Power Electronics I, Control Systems I


Credits:

3 SWS (2 SWS lecture, 1 SWS exercise), 4 ECTS
English (lecture), English/German (exercises)

Content:

The course is focused on dc/dc and dc/ac PWM converters, their model and their control. Particularly, since most of the adopted dc/ac converters in electric drives and renewable energies are voltage source converters, the current control is the first and most important control stage and it is responsible of high dynamical behavior and low harmonic content. Finally the course focuses on how to select current references to achieve the desired active and reactive powers even in unbalance situations, using the instantaneous power theory, nowadays an indispensable tool for smart grid technologies.

Topics overview:

  • dc/dc converter model
  • Average model, small-signal linearization, transfer functions
  • Design of the controller for dc/dc converters
  • dc/ac converter model: ac dynamics and dc dynamics
  • Current control (PI, resonant controller, deadbeat)
  • dc voltage control (linear, non-linear)
  • ac voltage control
  • active and reactive power controls
Literature:

N. Mohan, T. M. Undeland e W. P. Robbins, “Power Electronics: Converters, Applications, and Design”, Wiley, 2002, 0471226939.

M. P. Kazmierkowski, R. Krishnan, F. Blaabjerg, “Control in Power Electronics”, Academic Press, 2002, ISBN 0-12-40277205.

R. W. Erickson, D. Maksimovic, “Fundamentals of Power Electronics”, Kluwer Academic Publishers, 2001, ISBN 0792372700.

R. Teodorescu, M. Liserre, P. Rodriguez “Grid Converters for Photovoltaic and Wind Power Systems”, Wiley-IEEE, ISBN 8-0-470-05751-3, January 2011.

H. Akagi, E. H. Watanabe, M. Aredes “Instantaneous Power Theory and Applications to Power Conditioning” Wiley, ISBN 0470107618, 2007.

Research

  • Our research is focused on the design of high efficient and reliable PWM-based power converter architectures (single-cell, multi-cell, multilevel), their modelling and control to exploit commercial as well as new power semiconductor devices with minimum over design.
    We develop controllers for electric drives and we are particularly skilled in the integration of renewable energy systems into the electric grid.
    Please discover our expertise looking to our recent projects.

    HEART - The Highly Efficient And Reliable smart Transformer
    Further Research Projects

Location