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Christian-Albrechts-University of Kiel
In 2015 the Chair of Power Electronics
comprised 20 people among PhD and
Post-doc supervised by Prof. Marco
Liserre, Head of the Chair, and Prof.
Friedrich W. Fuchs. The Chair has already
collected more than 7 million euro in
new projects (in the last two years).
The Chair is also member of CE Wind
(Kompetenzzentrum Windenergie
Schleswig-Holstein) and KLSH (Kom-
petenzzentrums Leistungselektronik
Schleswig-Holstein).
Key research fields
The Chair of Power Electronics main fo-
cus areas are:
•
DC/DC converters and Inverters for
MW applications, with special focus on
wind systems.
•
Design for reliability and Active Thermal
Control.
•
Smart Grid: Grid identification, Smart
Transformer and HVDC.
•
DC/DC converters and drives for electric
vehicles, aerospace and high-speed
appliances.
The Chair has two large projects running
in the following fields:
•
Medium voltage impedance analysis
for optimal power feed-in (BMBF
grant, 2.300.000€, 2015-2018). The
goal is the design and development of
a 2 MW power converter to measure
the impedance of the MV grid.
•
Smart transformer (ERC consolidator
grant, 2.000.000€, 2014-2019). The
goal is to design a solid-state-trans-
former for distribution grid. A modular
structure is studied to guarantee high
efficiency and reliability.
In both projects, the Chair develops mod-
ular power converters with focus on high
power density, efficiency and reliability.
Chair Laboratory Highlight
The
power electronics laboratory
features are:
•
electric drives and power electronics
test benches up to 90 kW;
•
special thermal characterization setup
for power electronics equipped with an
IR Camera with positioning system and
an optic fiber temperature measure-
ment system;
•
power electronics system test bench-
es equipped with electronic loads, AC
and DC sources up to 4 kV and 60 kW,
oscilloscopes and power analyzers.
•
electrical grid HIL and Power-HIL capa-
bilities by means of Real Time Digital
Simulator with power amplifier.
•
Micro-grid and FACT facilities.
A new
medium voltage laboratory
is
under development with facilities to test
converter up to 1 MW of circulating power,
3 test cells with 10 kV connection and
air/water cooling.
Smart Transformer concept
DC/DC Converters: 20 kW dual active bridge and quadruple active bridge
1 MW NPC Power stack for wind system
