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Delft University of Technology is the old-
est and largest university of technology
of the Netherlands with 17,000 bachelor
and master students and 4,700 employ-
ees. With its unique technological infra-
structure, broad knowledge base, world-
wide reputation and successful alumni,
TU Delft makes a significant contribution
to finding responsible solutions to urgent
societal problems, at both national and
international level.
Research field and highlights
The research programme of the Electrical
Power Processing (EPP) group addresses
issues that drive the advancement of
electrical power processors and at the
same time brings into the picture broader
systems design issues. Our research is
driven by:
•
New and improved materials and
technologies;
•
Power density, force density, conver-
sion efficiency and system integration.
Power electronics and electromechanics
are the central enabling technologies for
advanced energy applications.
Power Electronics is a vital part of renewa-
ble energy conversion, mobility, transport
and Smart Grids. The four main research
themes in the group and some examples
of projects in these areas are:
Renewable Energy Conversion
•
PV panel integrated dc/dc converters
for distributed power tracking
•
High power transformerless PV inverter
•
Wave energy generators
Transport and Mobility
•
Converters and system integration for
marine applications
•
Fault-tolerant high-speed integrated
machine and drive for aerospace
applications
•
Contactless energy transfer for
charging of electric vehicles
Smart Grids
•
Active power flow control
•
Virtual synchronous generator
•
Fault current limiter
Technology Innovation
•
Novel standardised passive components
and technology for automated multi-
layer SMT assembly of PCB power
converters
•
Packaging of wide band-gap (SiC, GaN)
power converters
•
High power dc/dc converters
•
Systematic design approaches for EMI
in drives
The EPP group carried out one of the
ECPE flagship programmes “Industrial
Drive – System Integration” focused on
integration technologies and thermal
management of inverters for low pow-
er industrial drives. The 2.2 kW project
demonstrator had a power density of
4 kWdm
3
, 4 times higher than state-of-
the-art industry products at the time.
Facilities
The group has a well equipped laboratory
with various machines sets and a distri-
bution panel making it possible to inter-
connect machines and power electronic
converters at different locations inside
the laboratory. Ac and dc voltage levels
up to 5 kV and power levels up to 50 kW
is possible. Other equiment include EMI
and thermal measurement equipment,
pulsed power sources and energy storage
devices.
Delft University of Technology
High power density (4kW/dm
3
) inverter for 2.2 kW
drive (95% efficiency) – ECPE project
High power density (4kW/dm
3
), high efficiency
(>99%) fully SiC, SMT compatible inverter for 2.2 kW
drive (4.5 kW peak power) – ECPE project
Fault-tolerant, high power density integrated
machine and drive for aerospace applications
(75 kW, 4 kW/dm
3
)
