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Alfred Rufer
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Industrial Electronics Laboratory
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Professor
birth date: 14.01.1951
nationality: Switzerland
web site: http://lei.epfl.ch
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office(s):
ELD132
phone(s): [+41 21 69] 34676,32628
fax: 021 693 26 00
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MISSION
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Description
The Industrial Electronics Lab (LEI) is active in power electronics used in energy conversion and energy storage, in modelling and simulation of systems, including control strategies and control circuits.
LEI focuses its research activities along three principal axes.
The first concerns power electronics, with the development of new converter structures or topologies, or dedicated to specific applications. Beneath many different application-oriented options, LEI research activities include a specific topic with an original approach, namely the developing of multilevel converters with asymmetric designs using medium frequency transformation.
The second axis concerns energy conversion in general, with its management and storage. Flexibility and rapid intervention are the main contribution of power electronics in this field which are particularly pertaining to renewable energies, classical examples of which are photovoltaic sources or variable speed wind generators. Among the applications developed at LEI, supercapacitors for energy storage in traction systems are worth mentioning. They have been developed for several vehicles, such as buses, diesel-electric locomotives or light motorcycles.
The third axis concerns the modelling and simulation of systems, as well as the concept and design of control strategies and control circuits. In this field, many new applications need to be investigated, particularly complex and multidisciplinary systems. In order to analyse the functionality and characteristics of such systems, new dedicated methodologies are required.
Power electronics
Power electronic systems allow to convert electrical energy between different voltage levels and operating frequencies (including DC), with very high efficiencies and power densities and enable a highly dynamic control of the power flow. Current tendencies target the development of systems with high power densities while at the same time providing fast dynamic responses. Power electronics are also a key technology for providing intelligent, active interfaces linking distributed generation and storage systems. In the field of high-power and medium-voltage applications, different techniques of multilevel converters are expected to play a significant role in the development of future networks. Another research area directly related to the above, is active power filtering to cope with the increasing sensibility of electrical networks to distortions caused by harmonic injection. Novel control strategies for enhancement of the frequency spectrumof the electric grid have been developed.
Current research activities:
• Multilevel converters with medium frequency DC/DC and DC/AC converters, flexible interfaces.
• Frequency converters with high efficiency.
• Converters with interleaved channels.
• New commutation mechanisms.
Energy management and storage
The association of power converters with the development of advanced storage technologies extends the ability to efficiently manage power fluxes. This opens the door to new applications of short-term energy storage such as smoothing power consumption or load levelling.
Current research activities:
• Energy storage, applications with supercapacitors and hybrid structures.
• Power supplies with storage for particle accelerators.
• Hybrid energy storage with compressed air and supercapacitors.
System modelling and simulation
When power converters are in the centre of energy management topics, the methodology aspects are of first relevance for modelling the complete systems. This is the case not only for the optimization of the dynamic behaviour or developing theoverall control, but also in the sense of finding optimal steady-state properties.
Current research activities:
• Modeling and interfacing of fuel cells.
• Modeling of electrolyte flow batteries.
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BIOGRAPHY
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Alfred Rufer (1951) received the M.S. degree from the Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland, in 1976. In 1978, he joined BBC/ABB where he was involved in the fields of power electronics and control, such as high-power variable-frequency converters for drives. In 1993, he became an Assistant Professor at EPFL.
Since 1996, he has been a full Professor and Head of the Industrial Electronics Laboratory, EPFL. He has authored or coauthored several publications on power electronics and applications, and he holds several patents.
In Alfred Rufer’s lab, the actual research activities focus on one hand on power converters, where several solutions and applications of multilevel converters have been studied, especially in the field of asymmetric or hybrid topologies.
Another important field initiated by Alfred Rufer is dedicated to supercapacitive energy storage, where many applications have been studied or are currently underway. New research and development activities have recently been presented, where alternative energy storage devices with reduced aging phenomena or are easier to recycle than classical batteries are investigated and modeled.
In 2006, Alfred Rufer was elected to the IEEE Fellow grade.
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MAIN PUBLICATIONS
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I. Villar.
Multiphysical Characterization of Medium-Frequency Power
Electronic Transformers.
PhD thesis, Lausanne, 2010.
[ Details |
Link ]
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F. Iov, F. Blaabjerg, J. Clare, P. Wheeler, A. Rufer, and A. Hyde.
UNIFLEX–PM – A Key-Enabling Technology for Future
European Electricity Networks.
EPE Journal : European Power Electronics and Drives
Association Journal, 19(3), 2009.
[ Details ]
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A. J. Watson, H. Dang, P. W. Wheeler, J. C. Clare, G. Mondal, S. Kenzelmann,
A. Rufer, and Y. R. De Novaes.
Control Challenges and Solutions for a Multi-cellular
Converter for Use in Electricity Networks.
EPE Journal : European Power Electronics and Drives
Association Journal, 19(3), 2009.
[ Details ]
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D. Siemaszko, F. Zurkinden, L. Fleischli, I. Villar, Y. R. De Novaes, and
A. Rufer.
Description and Efficiency Comparison of Two 25 kVA DC/AC
Isolation Modules.
EPE Journal : European Power Electronics and Drives
Association Journal, 19(3), 2009.
[ Details ]
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W. Lhomme, P. Delarue, A. Bouscayrol, P. Le Moigne, P. Barrade, and A. Rufer.
Comparison of Control Strategies for Maximizing Energy in a
Supercapacitor Storage Subsystem.
EPE Journal : European Power Electronics and Drives
Association Journal, 19(3):5-14, 2009.
[ Details |
Full Text ]
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I. Villar, U. Viscarret, I. Etxeberria-Otadui, and A. Rufer.
Global Loss Evaluation Methods for Nonsinusoidally Fed
Medium-Frequency Power Transformers.
IEEE Transactions on Industrial Electronics,
56(10):4132 - 4140, 2009.
[ Details |
Full Text ]
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A. Rufer, B. Bahrani, S. Kenzelmann, and L. Lopes.
Vector Control of Single-Phase Voltage Source Converters
based on Fictive Axis Emulation.
In ECCE 2009 : IEEE Energy Conversion Congress and
Exposition, 2009.
[ Details |
Full Text ]
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C. Blanc and A. Rufer.
Optimization of the Operating Point of a Vanadium Redox
Flow Battery.
In ECCE 2009 : IEEE Energy Conversion Congress and
Exposition, 2009.
[ Details |
Full Text ]
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A. J. Watson, H. Dang, P. W. Wheeler, J. C. Clare, G. Mondal, A. Rufer,
S. Kenzelmann, and Y. de Novaes.
A Novel Multilevel Converter Structure Integrated into
Power Systems and its Performance Evaluation.
In EPE 2009 : 13th European Conference on Power
Electronics and Applications, 2009.
[ Details |
Full Text ]
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A. Béguin, A. Rufer, and A. Lacaze.
Poly-Phased Matrix Converter for large Synchronous
Generators - Design of the Voltage Surge Protection.
In EPE 2009 : 13th European Conference on Power
Electronics and Applications, 2009.
[ Details |
Full Text ]
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T. Chaudhuri and A. Rufer.
Fuzzy Logic Control of the Cross Connected Intermediate
Level (CCIL) Voltage Source Inverter.
In EPE 2009 : 13th European Conference on Power
Electronics and Applications, 2009.
[ Details |
Full Text ]
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D. Siemaszko and A. Rufer.
Active Self-Switching Methods for Emerging Monolithic
Bidirectional Switches Applied to Diode-Less Converters.
In EPE 2009 : 13th European Conference on Power
Electronics and Applications, 2009.
[ Details |
Full Text ]
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Y. Louvrier, P. Barrade, and A. Rufer.
Weight and efficiency optimization strategy of an interleaved
DC-DC converter for a solar aircraft.
In EPE 2009 : 13th European Conference on Power
Electronics and Applications, 2009.
[ Details |
Full Text ]
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S. Kenzelmann, P. Barrade, Y. Louvrier, and A. Rufer.
The Monophasor Theory: Analytical Development and Practical
Demonstration on a Single Phase Voltage Source Inverter.
In EPE 2009 : 13th European Conference on Power
Electronics and Applications, 2009.
[ Details |
Full Text ]
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D. Siemaszko, C. Rod, and A. Rufer.
Controlled Resonant Circuit with Commutated Capacitors using
Self-Switching Power Devices.
In ISIE 2009 : IEEE International Symposium on
Industrial Electronics, 2009.
[ Details |
Full Text ]
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S. Santhakumar, Y. Louvrier, and A. Rufer.
Altitude Performance of Heat sink in Standard Atmosphere.
In PCIM 2009 : International Conference on Power
Electronics, Intelligent Motion and Power Quality, 2009.
[ Details |
Full Text ]
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D. Siemaszko and A. Rufer.
Investigations on a 1kVA Reactive Power Compensated Current
Converter using monolithic RB-IGBT modules.
In PCIM 2009 : International Conference on Power
Electronics, Intelligent Motion and Power Quality, 2009.
[ Details |
Full Text ]
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D. Siemaszko.
Nouveaux mécanismes de commutation pour des structures
dédiées aux convertisseurs de puissance de haute efficacité et
interrupteurs du futur.
PhD thesis, Lausanne, 2009.
[ Details |
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C. Blanc.
Modeling of a vanadium redox flow battery electricity storage
system.
PhD thesis, Lausanne, 2009.
[ Details |
Full Text |
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C. Fahrni, A. Rufer, F. Bordry, and J. Burnet.
Storage for Particle Accelerators.
EPE Journal : European Power Electronics and Drives
Association Journal, 18(4):5-13, 2008.
[ Details |
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C. Blanc and A. Rufer.
Multiphysics and Energetic Modeling of a Vanadium Redox
Flow Battery.
In None, None, 2008. None.
[ Details |
Full Text ]
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H. Dang, A. Watson, J. Clare, P. Wheeler, S. Kenzelmann, Y. R. De Novaes, and
A. Rufer.
Advanced Integration of Multilevel Converters into Power
System.
In IECON 2008 : The 34th Annual Conference of the IEEE
Industrial Electronics Society, 2008.
[ Details |
Full Text |
Link ]
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I. Villar, U. Viscarret, I. Etxeberria-Otadui, and A. Rufer.
Transient Thermal Model of a Medium Frequency Power
Transformer.
In IECON 2008 : The 34th Annual Conference of the IEEE
Industrial Electronics Society, 2008.
[ Details |
Full Text ]
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P. Barrade and A. Rufer.
Sizing of a Supercapacitive Tank: Finite Elements Thermal
Modelling.
In ESSCAP 2008 : 3rd European Symposium on
Supercapacitors & Applications, 2008.
[ Details |
Full Text ]
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C. Fahrni and A. Rufer.
Dynamic Behaviour of a Series – Connected Multilevel
Converter with Interleaved Switching.
In EPE-PEMC 2008 : 13th International Power
Electronics and Motion Control Conference, 2008.
[ Details |
Full Text ]
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I. Villar, A. Rufer, U. Viscarret, F. Zurkinden, and I. Etxeberria-Otadui.
Analysis of Empirical Core Loss Evaluation Methods For
Non-Sinusoidally Fed Medium Frequency Power Transformers.
In ISIE 2008 : IEEE International Symposium on
Industrial Electronics, 2008.
[ Details |
Full Text ]
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A. Benaboud and A. Rufer.
A Flexible, High Efficiency, VSI-based HVDC Transmission
System with Reduced Harmonics.
In None, None, 2008. None.
[ Details |
Full Text ]
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T. Chaudhuri, P. Steimer, and A. Rufer.
Introducing the Common Cross Connected Stage (C3S) for
the 5L ANPC Multilevel Inverter.
In PESC 2008 : 39th IEEE Annual Power Electronics
Specialists Conference, 2008.
[ Details |
Full Text ]
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Y. Louvrier, P. Barrade, P.-O. Moix, and A. Rufer.
Caractérisation de cellules photovoltaïques avec prise en compte de
l’ombrage pour un dirigeable stratosphérique.
In EPF 2008 : XIIème colloque Electronique de Puissance
du Futur, 2008.
[ Details |
Full Text ]
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D. Siemaszko, F. Zurkinden, L. Fleischli, Y. R. Novaes, and A. Rufer.
Rendements Energétiques de Convertisseurs DC-AC 25kVA
Isolés à Deux ou Trois Etages.
In EPF 2008 : XIIème colloque Electronique de Puissance
du Futur, 2008.
[ Details |
Full Text ]
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T. Chaudhuri.
Cross connected multilevel voltage source inverter topologies
for medium voltage applications.
PhD thesis, Lausanne, 2008.
Prix Asea Brown Boveri Ltd (ABB) (2009).
[ Details |
Full Text |
Link ]
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P. Barrade, Y. Louvrier, and A. Rufer.
Replacement and emulation of a lead-acid battery with supercapacitors
for a UPS application.
In PCIM 2008 : International Conference on Power
Electronics, Intelligent Motion and Power Quality, 2008.
[ Details |
Full Text ]
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B. Destraz.
Assistance énergétique à base de supercondensateurs pour
véhicules à propulsion électrique et hybride.
PhD thesis, Lausanne, 2008.
[ Details |
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Link ]
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A. Rufer, P. Barrade, M. Correvon, and J.-F. Weber.
Multiphysic Modeling of a Hybrid Propulsion System for a
Racecar Application.
In iamf EET-2008 : European Ele-Drive Conference,
International Advanced Mobility Forum, 2008.
[ Details |
Full Text |
Link ]
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A. Rufer.
Benefits of Short- and Long-Term Energy Storage in the
context of renewable energies and sustainable management of energy resources.
In ANAE : Associazione Nazionale Azionamenti
Elettrici, 19o Seminario Interattivo, Azionamenti elettrici :
Evoluzione Tecnologica e Problematiche Emergenti, 2008.
[ Details |
Full Text ]
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Y. R. De Novaes, I. Barbi, and A. Rufer.
A New Three-Level Quadratic (T-LQ) DC-DC Converter
Suitable for Fuel Cell Applications.
IEEJ Transactions on Industry Applications,
128(4):459-467, 2008.
[ Details ]
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A. Rufer, P. Barrade, B. Destraz, and M. Capezzali.
En route avec un train hybride diesel-électrique.
Agefi Magazine, (1):56-59, 2008.
[ Details ]
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P. Barrade, B. Destraz, S. Hauser, and A. Rufer.
Application de supercondensateurs dans le transport individuel
Etude expérimentale d’un scooter électrique avec assistance en
puissance.
Bulletin de l'Association pour l'électrotechnique, les
technologies de l'énergie et de l'information et de l'Association des
entreprises électriques suisses (SEV/AES), (1):37-41, 2008.
[ Details |
Full Text ]
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C. Fahrni.
Principe d'alimentation par convertisseurs multiniveaux à
stockage intégré.
PhD thesis, Lausanne, 2008.
[ Details |
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S. Lemofouet and A. Rufer.
Efficiency Considerations and Measurements of a Hybrid Energy
Storage System based on Compressed Air and Supercapacitors.
EPE Journal : European Power Electronics and Drives
Association Journal, 17(4):13-19, 2007.
[ Details |
Full Text ]
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A. Rufer and S. Lemofouet.
Stockage d'énergie par air comprimé. un défi pour les circuits
d'électronique de puissance.
Revue Internationale de Génie Électrique (RIGE),
10(5):675-687, 2007.
[ Details |
Full Text ]
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S. Pittet and A. Rufer.
The Equivalent Electron Density Concept for Static and
Dynamic Modeling of the IGBT Base in Soft- and Hard-Switching
Applications.
IEEE Transactions on Power Electronics, 22(6):2223 -
2233, 2007.
[ Details |
Full Text ]
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F. Grasser and A. Rufer.
A Fully Analytical PEM Fuel Cell System Model for
Control Applications.
IEEE Transactions on Industry Applications, 43(6):1499
- 1506, 2007.
[ Details |
Full Text ]
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I. Etxeberria-Otadui, U. Viscaret, M. Caballero, and A. Rufer.
New Optimized PWM VSC Control Structures and Strategies
Under Unbalanced Voltage Transients.
IEEE Transactions on Industrial Electronics,
54(5):2902-2914, 2007.
[ Details |
Full Text ]
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A. Benaboud and A. Rufer.
REPONSE DYNAMIQUE RAPIDE D'UN ONDULEUR NPC A TROIS
NIVEAUX EN MODE RECTANGULAIRE.
In EF'2007 : Colloque sur l'Électronique du Futur,
2007.
[ Details |
Full Text ]
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A. Benaboud and A. Rufer.
A CLOSED LOOP CONTROL STRATEGY FOR A FREQUENCY-ONLY
CONVERTER WITH HIGH EFFICIENCY.
In IASTED 2007 : 7th International Conference on Power
and Energy Systems, 2007.
[ Details |
Full Text ]
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B. Destraz, P. Barrade, A. Rufer, and M. Klohr.
Study and Simulation of the Energy Balance of an Urban
Transportation Network.
In EPE 2007 : 12th European Conference on Power
Electronics and Applications, 2007.
[ Details |
Full Text ]
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C. Fahrni, A. Rufer, F. Bordry, and J. P. Burnet.
A novel 60 MW Pulsed Power System based on Capacitive
Energy Storage for Particle Accelerators.
In EPE 2007 : 12th European Conference on Power
Electronics and Applications, 2007.
[ Details |
Full Text ]
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D. Siemaszko, P. Barrade, Y. R. De Novaes, and A. Rufer.
New self-switching mechanisms for active bidirectional switches.
In EPE 2007 : 12th European Conference on Power
Electronics and Applications, 2007.
[ Details |
Full Text ]
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M. G. Bottarelli, Y. R. De Novaes, I. Barbi, and A. Rufer.
Three-Level Quadratic Non-Insulated Basic DC-DC
Converters.
In EPE 2007 : 12th European Conference on Power
Electronics and Applications, 2007.
[ Details |
Full Text ]
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A. Rufer.
Today’s and Tomorrow’s Meaning of Power Electronics
within the Grid Interconnection.
In EPE 2007 : 12th European Conference on Power
Electronics and Applications, 2007.
[ Details |
Full Text ]
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C. Blanc and A. Rufer.
Modeling of a Vanadium Redox Flow Battery.
In PCIM 2007 : International Conference on Power
Electronics, Intelligent Motion and Power Quality, 2007.
[ Details |
Full Text |
Link ]
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F. Iov, F. Blaabjerg, R. Bassett, J. Clare, A. Rufer, S. Savio, P. Biller,
P. Taylor, and B. Sneyers.
ADVANCED POWER CONVERTER FOR UNIVERSAL AND FLEXIBLE
POWER MANAGEMENT IN FUTURE ELECTRICITY NETWORK.
In CIRED 2007 : 19th International Conference on
Electricity Distribution, 2007.
[ Details |
Full Text ]
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T. Chaudhuri, P. Barbosa, P. Steimer, and A. Rufer.
Cross-Connected Intermediate Level (CCIL) Voltage Source
Inverter.
In PESC 07 : IEEE 38th Annual Power Electronics
Specialists Conference, 2007.
[ Details |
Full Text ]
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D. Graovac, A. Katic, and A. Rufer.
Power Quality Problems Compensation With Universal Power
Quality Conditioning System.
IEEE Transactions on Power Delivery, 22(2):968-976,
2007.
[ Details |
Full Text ]
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C. Farhni, A. Rufer, F. Bordry, and J. Burnet.
A Multilevel Power Converter with Integrated Storage for
Particle Accelerators.
In PCC 2007 : The Fourth Power Conversion
Conference, 2007.
[ Details |
Full Text ]
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Y. R. de Novaes, A. Rufer, and I. Barbi.
A New Quadratic, Three-Level, DC/DC Converter
Suitable for Fuel Cell Applications.
In PCC 2007 : The Fourth Power Conversion
Conference, 2007.
[ Details |
Full Text ]
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F. Grasser and A. Rufer.
An Analytical, Control-Oriented State Space Model for a
PEM Fuel Cell System.
In PCC 2007 : The Fourth Power Conversion
Conference, 2007.
[ Details |
Full Text ]
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D. Siemaszko, P. Barrade, and A. Rufer.
The Active Self-controlled Free-wheeling Management
Principle Applied to Reverse Recovery Losses Reduction.
In PCC 2007 : The Fourth Power Conversion
Conference, 2007.
[ Details |
Full Text ]
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A. Rufer.
Benefits of short and long term energy storage in the context of
renewable energies and sustainable energy consumption.
In EVER 2007 : Ecologic Vehicles & Renewable Energies,
International Exhibition & Conferences, 2007.
[ Details ]
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A. Rufer, S. Hauser, and P. Barrade.
Experimentation and study of an electric scooter assisted by
supercapacitors.
In ANAE : Associazione Nazionale Azionamenti
Elettrici, 18o Seminario Interattivo, Azionamenti elettrici :
Evoluzione Tecnologica e Problematiche Emergenti, 2007.
[ Details |
Full Text ]
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S. Lemofouet and A. Rufer.
Hybrid Energy Storage System Based on Compressed Air and
Super-Capacitors with Maximum Efficiency Point Tracking (MEPT).
IEEJ Transactions on Industry Applications,
126(7):911-920, 2006.
[ Details |
Full Text ]
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S. Lemofouet and A. Rufer.
Hydro-pneumatic Energy Storage Systems for Renewable
Sources Support: Principle, Efficiency Optimisation, Possible
topologies.
In IRES 2006 : First International Renewable Energy
Storage Conference, 2006.
[ Details |
Full Text ]
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A. Benaboud.
Convertisseur de fréquence indirect à rapport de tension
fixe.
PhD thesis, Lausanne, 2006.
[ Details |
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Link ]
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L. Fleischli, S. Lemofouet, and A. Rufer.
Multichannel DC-DC Converter’s Efficiency Optimisation by
variable Number of active Channels.
In IECON 2006 : The 32nd Annual Conference of the IEEE
Industrial Electronics Society, 2006.
[ Details |
Full Text ]
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L. Fleischli, S. Lemofouet, and A. Rufer.
Multichannel DC-DC Converter’s Efficiency Optimisation by
variable Number of active Channels.
In ESSCAP 2006 : 2nd European Symposium on
Supercapacitors & Applications, 2006.
[ Details |
Full Text ]
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F. Grasser and A. Rufer.
A fully analytical PEM fuel cell system model for control
applications.
In IAS 06 : 2006 IEEE Industry Applications Conference
- 41th IAS Annual Meeting, 2006.
[ Details |
Full Text ]
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B. Destraz, Y. Louvrier, and A. Rufer.
High Efficient Interleaved Multi-channel dc/dc Converter
Dedicated to Mobile Applications.
In IAS 06 : 2006 IEEE Industry Applications Conference
- 41th IAS Annual Meeting, 2006.
[ Details |
Full Text ]
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S. Mariethoz and A. Rufer.
Multisource DC-DC converter for the supply of hybrid multilevel
converter.
In IAS 06 : 2006 IEEE Industry Applications Conference
- 41th IAS Annual Meeting, 2006.
[ Details |
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A. Benaboud and A. Rufer.
New Control Strategy for Three Level NPC Converter
Connected to the Grid.
In IASTED 2006 : Sixth International Conference on
European Power and Energy Systems, 2006.
[ Details |
Full Text ]
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F. Grasser and A. Rufer.
PEMFC system efficiency optimisation through model based control
strategies.
In 2006 IEEE Vehicle Power and Propulsion Conference,
2006.
[ Details |
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A. Rufer and S. Lemofouet.
Efficiency Considerations and Measurements of a Hybrid Energy
Storage System based on Compressed Air and Super Capacitors.
In EPE-PEMC 2006 : 12th International Power
Electronics and Motion Control Conference, 2006.
[ Details |
Full Text |
Link ]
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S. Lemofouet-Gatsi.
Investigation and optimisation of hybrid electricity storage
systems based on compressed air and supercapacitors.
PhD thesis, Lausanne, 2006.
[ Details |
Full Text |
Link ]
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S. Lemofouet and A. Rufer.
A Hybrid Energy Storage System Based on Compressed Air
and Super Capacitors With Maximum Efficiency Point Tracking
(MEPT).
IEEE Transactions on Industrial Electronics,
53(4):1105-1115, 2006.
[ Details |
Full Text ]
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C. Blanc and A. Rufer.
Modélisation d'un système de stockage de type électrolyseur
réversible au vanadium.
In EPF 2006 : 11ème édition, Électronique de Puissance
du Futur, 2006.
[ Details |
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A. Rufer and S. Lemofouet.
Stockage d'énergie par air comprimé: un défi pour les circuits
d'électronique de puissance.
In EPF 2006 : 11ème édition, Électronique de Puissance
du Futur, 2006.
[ Details |
Full Text ]
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D. Siemaszko, P. Barrade, and A. Rufer.
Étude des commutations pour interrupteurs quatre quadrants, exemple
d'application utilisant les transistors MOS.
In EPF 2006 : 11ème édition, Électronique de Puissance
du Futur, 2006.
[ Details |
Full Text ]
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B. Destraz, P. Barrade, and A. Rufer.
A new interleaved multi-channel DC/DC converter specially
dedicated to low voltage, high current applications.
In PCIM 2006 : International Conference on Power
Electronics, Intelligent Motion and Power Quality, 2006.
[ Details |
Full Text ]
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A. Rufer and S. Lemofouet.
Energetic Performance of a Hybrid Energy Storage System
based on Compressed Air and Super Capacitors.
In SPEEDAM 2006 : Symposium on Power Electronics,
Electrical Drives, Automation & Motion, 2006.
[ Details |
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J.-M. Meyer and A. Rufer.
A DC Hybrid Circuit Breaker With Ultra-Fast Contact
Opening and Integrated Gate-Commutated Thyristors (IGCTs).
IEEE Transactions on Power Delivery, 21(2):646-651,
2006.
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P. Barrade, A. Rufer, and A. Bouscayrol.
An Energy-Flow Based Methodology - Application to hybrid
vehicles.
In ANAE : Associazione Nazionale Azionamenti
Elettrici, 17o Seminario Interattivo, Azionamenti elettrici :
Evoluzione Tecnologica e Problematiche Emergenti, 2006.
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A. Rufer.
Les onduleurs multiniveaux : évolution de la recherche et
applications futures.
Bulletin de l'Association pour l'électrotechnique, les
technologies de l'énergie et de l'information et de l'Association des
entreprises électriques suisses (SEV/AES), (3):25-30, 2006.
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M. Visintin.
Contribution to the active generator principle for high power
electric supply.
PhD thesis, Lausanne, 2006.
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C. Blanc, V. Chritin, E. Van Lancker, A. Rufer, B. Genevay, and M. Nicollerat.
Acoustic Mapping for Active Transformer Quieting
Applications Based on a Modular DSP Platform.
In IECON 2005 : The 31st Annual Conference of the IEEE
Industrial Electronics Society, 2005.
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S. Lemofouet and A. Rufer.
Principle of Hybrid Energy Storage Systems based on
Hydro-pneumatics and Supercapacitors for Distributed Generation and
Renewable Energy Sources Support.
In EESAT 2005 : Electrical Energy Storage Applications
& Technologies, 2005.
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C. Zimmermann, A. Rufer, and C. Chabert.
Non-Linear Properties and Efficiency Improvements of a
Bi-Directional Isolated DC-AC Converter with Soft
Commutation.
In IAS 05 : 2005 IEEE Industry Applications Conference
- 40th IAS Annual Meeting, 2005.
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W. Lhomme, P. Delarue, P. Barrade, A. Bouscayrol, and A. Rufer.
Design and Control of a Supercapacitor Storage System for
Traction Applications.
In IAS 05 : 2005 IEEE Industry Applications Conference
- 40th IAS Annual Meeting, 2005.
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B. Destraz, P. Barrade, and A. Rufer.
A new solution for increasing the efficiency of an electric scooter
with supercapacitors through a novel, interleaved multi-channel DC/DC
converter.
In EM 05 : 6th International Symposium on Advanced
Electromechanical Motion Systems, 2005.
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S. Lemofouet and A. Rufer.
Hybrid Energy Storage Systems based on Compressed Air and
Supercapacitors with Maximum Efficiency Point Tracking.
In EPE 2005 : European Conference on Power Electronics
and Applications, 2005.
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F. Grasser and A. Rufer.
Advanced Fuel Cell System Control through State Space
Modelling.
In IFAC 2005 : 16th International Federation of
Automatic Control World Congress, 2005.
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M. Veenstra and A. Rufer.
Control of a Hybrid Asymmetric Multilevel Inverter for
Competitive Medium-Voltage Industrial Drives.
IEEE Transactions on Industry Applications,
41(2):655-664, 2005.
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C.-B. Andrianirina, A. Rufer, N. Giandomenico, and F. Besson.
A flexible 4kW - 3 Phase - 2 Switch PFC Power Rectifier
for Supplying a Modern EDM Machine.
In PCIM 2005 : International Conference on Power
Electronics, Intelligent Motion and Power Quality, 2005.
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S. Lemofouet and A. Rufer.
Hybrid Energy Storage System based on Compressed Air and
Super Capacitors with MEPT (Maximum Efficiency Point Tracking).
In IPEC 2005 : International Power Electronics
Conference, 2005.
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S. Mariethoz and A. Rufer.
An overview of the technique of asymmetrical multilevel inverters.
In ANAE : Associazione Nazionale Azionamenti
Elettrici, 16o Seminario Interattivo, Azionamenti elettrici :
Evoluzione Tecnologica e Problematiche Emergenti, 2005.
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M. Veenstra and A. Rufer.
Non-Equilibrium State Capacitor-Voltage Stabilization in a
Hybrid Asymmetric Nine-Level Inverter: Non-Linear
Model-Predictive Control.
EPE Journal : European Power Electronics and Drives
Association Journal, 15(1):28-35, 2005.
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F. Grasser.
An analytical, control-oriented state space model for a PEM
fuel cell system.
PhD thesis, Lausanne, 2005.
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S. Pittet.
Modélisation physique d'un transistor de puissance IGBT.
PhD thesis, Lausanne, 2005.
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J.-S. Mariéthoz.
Etude formelle pour la synthèse de convertisseurs multiniveaux
asymétriques.
PhD thesis, Lausanne, 2005.
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A. Rufer.
Le stockage d'énergie embarqué.
Les cahiers de l'électricité, (58):30-33, 2004.
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A. Rufer, P. Barrade, D. Hotellier, and S. Hauser.
Sequential Supply for Electrical Transportation Vehicles:
Properties of the fast energy transfer between supercapacitive tanks.
Journal of circuits, systems and computers, World
Scientific, 13(4):941-955, 2004.
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