Marco Liserre [e-mail]

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Power Electronics Research Group in Bari
Marco Liserre Mercator Professor at
Christian-Albrechts University of Kiel Lehrstuhl
für Leistungselektronik und Elektrische
Antriebe Dipartimento di Elettrotecnica ed
Elettronica Politecnico di Bari Bari,
Italy liserre_at_poliba.it
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Il Politecnico di Bari
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Politecnico di Bari
Engineering Faculty 10000 students
Foggia
Architecture faculty 1500 students
Bari
Taranto
10 Departments
De' remi facemmo aliDante Alighieri Divina
CommediaCanto XXVI, verso 125



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Department of Electric and Electronic
Engineering
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Department of Electric and Electronic Engineering

• Head Prof. B. Turchiano
• 80 professors
• 40 PhD students
• 9 scientific groups (the Power Electronic
  Research group is part of ING-IND/32 Converter,
  Electrical Machines and Drives)
• 27 laboratories

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The Power Electronic Research Group
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Power Electronic Research Group

• Researchers
• Professors 2
• PhD students 3
• Post-doc reaserchers 2
• Assistant reasercher 1
• Research activities
• Multilevel converters modulation and control
• Three-phase active rectifiers
• Power quality assessment criteria and active
  compensation systems
• Power converters for distributed power generation
  systems

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Power Electronic Research Group

• Collaborations
• LAquila University
• Aalborg University (Denmark)
• Nottingham University (UK)
• Christian-Albrechts University of Kiel (Germany)
• Cantabria University (Spain)
• Alcalá University (Spain)
• Technical University of Catalunya (Spain)
• Publications 2000-2008
• Journal papers 30
• Conference papers 120
• Book chapters 4
• PhD thesis 6
• Main research funds 2000-2008
• Cluster 13 P8 EMC 1.174.785
• AnsaldoBreda Spa Automatic C code generation
  100.000
• Jonica Impianti power converter for WT
  30.000

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Research activities
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A. Multilevel converters modulation and control

• PI-based and passivity-based control of H-Bridges
  multilevel converters
• Back-to-back drives for traction systems
• Multilevel modulations and their implementation
  on FPGA systems

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B. Three-phase active rectifiers

• LCL-filter design and passive/active damping of
  control loops
• Back-to-back drive with reduced energy storage
• Fuzzy-sensorless control for low-cost
  microcontrollers

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C. Power quality assessment criteria and active
compensation systems

• New power quality assessment criteria for
  non-linear loads
• Predictive, fuzzy and fuzzy-predictive controls
  of active filters
• Optimal tuning of active power filters via
  genetic algorithms and Nelder-Mead method

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D. Power converters for distributed power
generation systems

• PV and WT simulators
• PV converters
• Anti-islanding methods
• Control of a PMSG-based wind turbine without
  speed sensors
• Power quality improvements through DPGS
• Projects involving companies

• a regional research project in the field of
  PV-systems reactive power control has been
  tested (Rienergia company involved)
• a project with Jonica Impianti company to build
  the converter for a small WT

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Photovoltaic system emulator
SUN SIMULATOR
SOLAR PANEL SIMULATOR
simulator of temperature and irradiation
Photovoltaic system emulator

• Aims
• to create a realistic test bench for
  photovoltaic inverter
• To predict MPPT and other control algorithms
  behavior when the inverter is installed
• Items
• 2 software Sun simulator and Solar panel
  simulator
• Hardware Dc source

simulator of photovoltaic panel
dc source
MPPT
inverter
grid
System under test
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Hardware of the photovoltaic system emulator
filter
load
inverter
Meas.
Phtovoltaic system emulator
Inverter control
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Wind emulator
It controls a motor to act as the blades and
gearbox of a wind turbine. The motor is directly
coupled to the generator and power converter
under test
only changing the parameters of the controllers
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PV converters step-up inverter
The system consists of three dc/dc boost
converters with a common point and operating as a
three-phase inverter with intrinsic step-up
capability. The converter obtained can invert,
amplify and, where possible, regenerate
bidirectional power sources such as fuel-cells,
small gas turbines and photovoltaic arrays. There
are two main advantages to the system the use of
only six IGBTs and small passive elements, and
the fact that it does not need reverse voltage
blocking capability.
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PV converters transformerless converter
The research has been focused on transformerless
photovoltaic inverter topologies for three-phase
grid connection with the main focus on the safety
issues that result from the lack of galvanic
isolation. A common-mode model, valid at
frequencies lower than 50kHz, is adopted to study
the leakage current paths.
Research developed in cooperation with a PhD
student working for Electrical Energy
Conversion and Condition, European Project
MARIE CURIE Early Stage Training Fellowships
(EST), University of Nottingham. Local
coordinator Prof. A. DellAquila ( 230.287).
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Anti-islanding algorithms
The research has been started with a deep
simulation and experimental comparison of the
passive and active methods used for islanding
detection. Then the research has been carried out
on Kalman-filter-based and wavelet-based methods
for islanding detection
The research developed in cooperation with a
visiting reasercher from Spain has originated the
following project Algoritmos para la detección
de la condición de isla eléctrica en inversores
aplicados a sistemas de generación fotovoltaica
distribuida de acuerdo con la normativa europea
Coordinatore Víctor M. Moreno Sáiz, Università
della Cantabria (50.000 )
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Control of a PMSG-based wind turbine without
speed sensors
The research has been started with a deep
simulation comparison of the diode-bridge based
and back-to-back power converters. Then it has
been focused on the speed-sensorless control of
generator inverter

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Power quality improvements through DPGS
Also low power PV systems can be designed to
improve the power quality. They can provide grid
voltage support and compensation of harmonic
distortion at the point of common coupling (PCC)

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Regional research project in the field of
PV-systems
MT/bt
Q2
Control signal
Measures P1 Q1 V1
Measures P2 Q2 V2
Control system
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Industrial project to build the converter for a
small WT
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Laboratory equipment
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Laboratory Equipment

• dSpace boards 8
• Danfoss inverters with Aalborg cards 10
• Acquistion boards for voltage and currents 20
• National Instruments acquistion boards 2
• oscilloscopes 7
• Microcontrollers boards 6
• 5 kW induction motor drives 4
• 2 kW PMSM drives 2
• 9 kVA ac power supplies 1
• 1.5 kVA dc power supplies 2
• EMI receiver 1

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Laboratory Equipment
dSpace
dsp Texas
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Laboratory equipment

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You are welcome to visit us !
Visiting Msc students from Netherlands
Visiting PhD student from Denmark
Many other have visited us from other European
university
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Bari
Castel del monte
Trani
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Few words about the speaker
Marco Liserre received the MSc and PhD degree in
Electrical Engineering from the Polytechnic of
Bari, respectively in 1998 and 2002. From January
2004 he is an assistant professor in the same
university teaching courses of power electronics,
industrial electronics and electrical machines.
Recently his research interests are focused on
industrial electronics applications to
distributed power generation systems based on
renewable energies. He has co-authored 116
technical papers, 28 of them in international
peer-reviewed journals and 3 chapters of a book.
These works have received more than 500
citations.
He has been a visiting Professor at Aalborg
University (Denmark), Alcala de Henares (Spain)
and he is currently Mercator Professor at
Christian-Albrechts University of Kiel (Germany).
He has been giving lectures in different
universities and tutorials for the following
conferences PESC 2008, ISIE 2008, EPE 2007, IECON
2006, ISIE 2006 and IECON 2005. From three years
Marco Liserre has been teaching, with Prof. Remus
Teodorescu and with Prof. Pedro Rodriguez, the
Industrial PhD Course Power Electronics for
Renewable Energy Systems in theory and
practice at Aalborg University (Denmark). Marco
Liserre is a senior member of the IEEE and of the
following societies Industrial Electronics
Society, Power Electronics Society and Industry
Applications Society. He has served as reviewer
for international conferences and journals.
Within the IES he has been active as responsible
of student activities, AdCom member, editor of
the newsletter, responsible of region 8
membership activities. He has been involved in
IEEE conferences organization in different
capacities. He is an Associate Editor of the IEEE
Transactions on Industrial Electronics. He is
Founder and Editor-in-Chief of the IEEE
Industrial Electronics Magazine. He is Founder
and Chairman of the Technical Committee on
Renewable Energy Systems of the IEEE Industrial
Electronics Society.
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Industrial/Ph.D. Course in Power Electronics for
Renewable Energy Systems in theory and
practice R. Teodorescu, P. Rodriguez, M.
Liserre, J. M. Guerrero Aalborg University,
Denmark
Green Power Converter Research Group
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