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Keywords
•
Ultra-compact / efficient light-weight
power electronic converter systems
•
Extreme environment power converters
and drives
•
Self-sensing super high-speed and eco-
intelligent drive systems
•
Magnetic bearings / Bearingless motors
•
Hybrid actuators
•
Advanced multi-objective predictive
control schemes and control stability
analysis
•
Magnetic components and materials
modeling
•
Multi-domain modeling / Multi-objec-
tive (Pareto) optimization
Typical application areas:
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IT power supplies / UPS
•
Renewable energy / PV
•
Automotive systems / EV battery
charging
•
More-Electric Aircraft (MEA)
•
Industry automation
•
Medical systems
•
Semiconductor / chemical / pharma-
ceutical industry.
29 Ph.D. Students
4 PostDocs
Research Focus
The research at the Power Electronic
Systems Laboratory (PES) addresses
challenges in power electronics and me-
chatronics that have a fundamental or
generic nature. The considerations are
on a system-oriented basis. Proposed con-
cepts should allow a translation into future
innovative industrial products. Motor and
actuator concepts, converter topologies,
power semiconductor technologies, mod-
ulation schemes, control methods, ther-
mal management, and EMI filtering are
seen as coupled issues rather than treated
in a sequential manner. Circuit-oriented
simulation and FEM- and PEEC-based anal-
ysis of the mechanical, electromagnetic,
and thermal behavior are integrated into
the research and design process. Further-
more, multi-objective optimizations are
performed in order to identify the Pareto
performance limit concerning efficiency,
power density, and costs.
The main areas of research are currently
•
novel concepts of PWM rectifier sys-
tems with low effects on the mains
•
highly compact / efficient electromag-
netically integrated DC/DC converter
systems
•
novel isolated / non-isolated AC/AC
PWM (matrix) converter topologies
•
ultra high speed drives, magnetic and
hybrid air bearings, bearingless motors
•
multi-domain / scale modeling, ab-
straction, simulation, and multi-objec-
tive optimization.
In each research area, a comprehensive
experimental verification of the proposed
theoretical concepts is provided that em-
ploys the latest Si and SiC (GaN) power
semiconductor and high performance
digital signal processing technology. The
investigations are currently carried out by
29 Ph.D. students and 4 Postdocs under
full or partial funding by international in-
dustry partners.
Future Extensions of Research Scope
•
Medium-frequency medium-voltage
DC/DC converters / Solid-state trans-
formers
•
Inductive power transfer
•
DC distribution systems
•
Micro power electronics / Power supply
on chip
•
Virtual Prototyping.
Swiss Federal Institue of Technology Zurich
Ultra-efficient / compact automotive DC/DC con
verter; 99% @ 40kW/dm
3
.
World record speed drive systems; 100W @
1‘000‘000 rpm.
Ultra-high efficiency 3.3kW 1-ph. PFC rectifier;
(efficiency at rated power: 99,4 %).
Laboratory for High
Power Electronic Systems
