2018 Edition Keynotes
Claus Müller (Siemens AG)
Keynote Title: Opportunities and Challenges of Electric Aircraft Propulsion
Engineer’s degree, Electrical Engineering, Munich, 1997
PhD degree, Electrical Engineering, Munich, 2008
Control of a CVT-based hybrid drivetrain
Project Manager, Deutsche Bahn, Munich, 2003 – 2010
EMU procurement project, Repowering projects
Head of Power Electronics, Compact Dynamics, Starnberg, 2011 – 2013
Motor integrated power electronics mainly for motorsport application
Engineer Innovation, Knorr-Bremse, Munich, 2013 – 2017
Advanced innovation projects in the area of controls and actuators
Head of Aircraft Drives and Controls, Siemens eAircraft, Munich, since 2017
Control and power electronics for electric aircraft propulsion systems
Leo Lorenz (ECPE)
Keynote Title: Power Semiconductor Devices: Key Technology Driver for Future Power Electronic System Development
Leo Lorenz received the M.Eng. degree from Univ. of Berlin Germany in 1976 and the PhD. degree from University of Bundeswehr Munich in 1984 (Germany).
Currently he is Consultant to the Power Semiconductor Industry. From 1988 to 1998 he was Senior Director at Siemens responsible for Power Semiconductor Devices in Automotive & Industrial Application. From 1998 to 2012 he served as Senior Principle in Application and Concept Engineering for all power semiconductor Technologies in Munich/Singapore/Shanghai. In this field he has published more than 400 Journal/conference papers with a high citation rate and is the owner of many basic patents. He gave more than 80 key note presentations at high level Summits and Conferences.
Beside his work in Industry he is a Honorable/Adjunct Professor at several Universities in Germany and Worldwide . In this function he provides courses on power semiconductor technologies and supervised more than 20 PhD Students.
- Dr. Lorenz is one of the Key Founder of ECPE (European Center of Power Electronics) and since the foundation in 2003 President of this organization. He is Founder/Co-founder of several conferences such as CIPS (Conference on Integrated Power Systems), PCIM Asia, ISPSD, etc. He served as General Chair of several Conferences e.g. CIPS , PCIM since 2001 and is in the Advisory Board of all of these Conferences. Dr. Lorenz received several times the best paper Award at IEEE Conferences. In 1996, he received the Siemens Innovation Award and from the German Industry Society the Innovation Award in 2002.
Beside these he received several high level IEEE Awards e.g. IEEE-ISPSD Outstanding Contributory Award in 2010 (Japan), the IEEE- Gerald Kliman Innovator Award in 2011 (USA) and the IEEE- William E. Newell Power Electronics Award in 2012 (USA), Ernst Blickle Award in 2015 (Germany), Sun Yun-Suan Honorary Professorship from Nat. Tsing Hua University TW in 2016 and a Dr. Honoris Causa nomination in 2017.
He is a distinguished lecturer at several Universities since 2003. He owns an IEEE- Fellowship since 2006 and is a Member of German Academy of Science since 2005.
2018 Edition Lecturers
Emil Levi (Liverpool John Moores University, UK )
Emil Levi received the Dipl. Ing. degree in electrical engineering from the University of Novi Sad, Yugoslavia, in 1982, and MSc and the PhD degrees in Electrical Engineering from the University of Belgrade, Yugoslavia in 1986 and 1990, respectively. From 1982 till 1992 he was with the Dept. of Elec. Engineering, University of Novi Sad. He joined Liverpool John Moores University, UK in May 1992 and is since September 2000 Professor of Electric Machines and Drives. Emil is a Fellow of the IEEE (Class of 2009). He served as a Co-Editor-in-Chief of the IEEE Trans. on Industrial Electronics in the 2009-2013 period and is currently Editor-in-Chief of the IET Electric Power Applications and an Editor of the IEEE Trans. on Energy Conversion. He is the recipient of the Cyril Veinott award of the IEEE Power and Energy Society for 2009 and the Best Paper award of the IEEE Trans. on Industrial Electronics for 2008. In 2014 he received the “Outstanding Achievement Award” from the European Power Electronics (EPE) Association.
His areas of research interest include electric machines, power electronic converters, and variable speed electric drives/generation systems. For the last 15 years he has been involved in research related to modeling and control of multiphase variable speed drives and generation systems. He has published more than 370 papers, including over 70 full IEEE Transactions papers.
Title of the lecture: Multi-phase drive and generation systems for advanced industrial applications
Although multiphase (more than three phases) machines have been known for almost half a century, it is only in recent times that they are becoming more wide-spread in industrial applications. In addition to the obvious advantage of reducing the required power-per-phase and hence required semiconductor rating, multiphase systems offer a number of other advantages that make them suitable for specific but important niche applications. These all stem from the fact that, regardless of the number of stator phases, independent flux and torque control of an ac machine always requires only two independently controllable currents (two degrees of freedom). The remaining degrees of freedom can then be used for other purposes and this will be the subject of this lecture.
The lecture will commence with an introduction to the types of multiphase machines, principles of multiphase machine modelling, vector control, and multiphase voltage source inverter PWM schemes. ‘Classical’ (i.e. older) uses of additional degrees of freedom will be addressed next, including the multi-motor multiphase series-connected drive systems with reduced-switch-count inverter supply, use of the additional degrees of freedom for the purposes of achieving fault-tolerant operation, and torque enhancement or torque ripple smoothing by low order stator current harmonic injection. Next, more recent applications of the additional degrees of freedom will be considered. This encompasses capacitor voltage balancing in machines with multiple three-phase windings and multiple three-phase converters connected in series, realisation of fully integrated on-board fast (three-phase) and slow (single-phase) battery charging systems in electric vehicles, power sharing between three-phase windings in a multiphase machine with a multitude of said sub-windings, a braking method for induction motor drives with diode front-end rectifier, and stator winding temperature estimation. Basic concepts will be explained and illustrative examples will be provided throughout.
Francisco D. Freijedo (Power Electronics Laboratory, EPFL – Switzerland)
Dr. Francisco D. Freijedo is a Scientist in the Power Electronics Laboratory at at Swiss Federal Institute of Technology (EPFL) in Lausanne, Switzerland, where he is engaged in research activities in the broad field of electrical energy generation, conversion and storage, with focus on medium voltage high power applications. He has received his BSc degree in Physics (Electronics Branch) from the University of Santiago de Compostela, Spain in 2002 and his PhD degree from the University of Vigo, Spain in 2009. Before joining the EPFL, from 2005 to 2011 he was an Assistant Lecturer at the University of Vigo; from 2011 to 2014 he worked as an R&D Engineer at Gamesa Innovation and Technology, where he developed power electronics controllers for wind turbine applications; In 2014-2015 he was at the Aalborg University as a Postdoc researcher, involved in activities related to harmonic instability in power plants and also in microgrids. His research interests are in areas of modeling and control for power electronics systems, having broad experience with many different technologies and applications. His current activities are funded by the Swiss Federal Office of Energy and mostly related to enabling technologies for MVDC conversion systems. He is IEEE Senior Member and he authored or co-authored more than 100 peer-reviewed scientific publications.
Title of the lecture: Grid Connected Converters
Integration of renewable energy sources in the AC grid is requires carefully consideration of the energy source characteristics, capabilities of the power electronic conversion technologies and continuous monitoring of the grid conditions. The course will cover topics related to the design, control and integration of the power electronic converters for the renewable grid connected applications. For the sake of clarity and simplicity, an LCL filter grid connected double-stage photovoltaic (PV) system will serve as a base for discussion. More specifically, course will cover: power electronic converter operating principles, pulse width modulation, modeling and control in s-domain and z-domain, phase locked loops, LCL filter design, PI and PR type of regulators and corresponding closed loop control loops. PLECS examples will accompany various theoretical developments.
Ilknur Colak – (Maschinenfabrik Reinhausen GmbH, Germany)
Ilknur Colak received her MSc. and PhD. in electrical engineering from Istanbul Technical University, Istanbul, Turkey. After following two years of power electronics research engineering experience in industry, she worked as a research scientist in TUBITAK (The Scientific and Technological Research Council of Turkey) where she was responsible of high power resonant converters, hybrid/electrical vehicles, drives for power traction applications, battery charging system for military applications, etc. From 2008 to 2010 she worked as an RnD manager in OZDISAN where she was leading a power electronics research team in the field of DC/DC converters, inverters, UPS, etc. Between 2010 and 2012 she worked at CERN (The European Organization for Nuclear Research) as a research fellow where she designed the first space vector modulation controlled multilevel converter for the LHC accelerators. Between 2012 and 2016 Colak worked with ABB Power Converter Solutions group, Turgi, Switzerland, as senior lead researcher, where her main focus was on modular multilevel converters for medium voltage applications. Her research area includes multilevel (MMC, NPC, ANPC) topologies, modulation schemes, transformerless concepts, high power resonant converters, insulation and coordination, EMC and grounding, reliability, and wave energy conversion systems. Since November 2016 she is with Maschinenfabrik Reinhausen – MR, as Power Electronics – Project Manager.
Title of the lecture: EMC Design Fundamentals for Power Electronic Converters
This lecture is intended to cover the electromagnetic theory needed to understand the phenomena that lead to EMC problems in power electronic converters and to explain the related EMC design steps based on theoretical explanations, practical examples and IEC standards. It describes how EMC applies to systems and installations, and also explains proven best EMC practices to alleviate the problems. The presentation aims to give a guide to the methods that can be used straight away without performing complex simulations during the design phase.
Contents: The tutorial focuses on the practical electromagnetic design issues on power electronic converters. The main contents of the proposed tutorial are described in the following outline.
- Overview on Electromagnetic Basics
- – Absorptivity, reflectivity and transmissivity
- – Shielding
- – Eddy currents
- – Skin effect
- – Proximity effect
- – Magnetic conduit effect
- Coupling Mechanisms
- – Radiative coupling
- – Near field coupling
- – Conductive coupling
- – Reducing inductive and capacitive couplings
- Design Process
- – Pre-study (Identify the requirements from the related standards)
- – EMC related – System design
- – EMC related – Electrical design
- Cable segregation and routing
- Bonding and straps
- Grounding on PCB level
- Grounding on system level
- – EMC related – Mechanical design
- Cable penetrations
- Mitigation Methods and Best Application Practices
- Related Standards and Tests
Christian Haag (Flexible Electrical Networks (FEN) GmbH)
Dr.-Ing. Christian Haag is the managing director of Flexible Electrical Networks (FEN) GmbH, affiliated with FEN Research Campus. FEN is a joint association comprising 15 institutes of RWTH Aachen University and 25 industry partners. Dr. Haag is active as an adjunct professor at the School of Business at the University of Alberta (UoA). From 2011 to 2016, he worked as a project leader for RWTH Aachen Campus GmbH. Since 2017, he is a member of ETIP SNET innovation implementation in the business environment. Since 2016, he also works as a mentor for the RWTH Aachen Entrepreneurship Center where he is responsible for start-up consulting and support in the field of energy technology. Since 2013, Dr. Haag is a member of the technical commission for electro mobility of the city of Aachen as well as member of the board of trustees of Energeticon gGmbH (chair since 2016). From 2008 to 2013, Dr. Haag earned his PhD in the field of production engineering at the Laboratory for Machine Tools and Production Engineering (WZL), following his graduation from RWTH Aachen University (engineering diploma in sustainable management) in 2008. He also completed an MBA at RWTH Aachen and University of St. Gallen from 2015 to 2017.
Christoph Loef (Institute for Power Electronics and Electrical Drives (ISEA) – RWTH Aachen, Germany)
Dipl. Ing. Christoph Loef is permanent research staff member at the Institute for Power Electronics and Electrical Drives (ISEA) of RWTH Aachen University since 2010. Since 2015, he organizes the low voltage activities within the FEN Research Campus on electrical DC grids. From 1990 to 2010, Mr. Loef worked as a senior scientist at Philips Research Laboratories Aachen. Prior to that, he studied electrical engineering at the University of Applied Sciences Aachen, graduating in 1989. His research areas comprise resonant and non-resonant power converters, EMC problems and contactless energy transmission as well as aspects of future low voltage DC grids. He is a member of the IEC systems committees LVDC (SyC LVDC) to provide systems level standardization, coordination and guidance in the areas of low voltage direct current and low voltage direct current for electricity access. Mr. Loef holds more than 40 patents and has published several conference papers in the field of power electronics.
Gonca Gürses (Flexible Electrical Networks (FEN) GmbH)
M. Sc. Gonca Gürses is research associate at the FEN Research Campus since 2016 and started her PhD under the supervision of Prof. Antonello Monti (ACS – RWTH Aachen). Ms. Gürses graduated in 2016 with her master’s degree in electrical engineering and business administration at RWTH Aachen University after having completed the bachelor’s degree in the same course in Aachen in 2013. Her field of research focuses on reliable and sustainable innovative electric systems. Earlier she worked on voltage regulated distribution transformers and control systems with high shares of sensors. Until recently, she was responsible for prequalification of technical assets for ancillary services. During her studies she received several scholarships for her year abroad at Queensland University of Technology (QUT) and her research activities at ETH Zurich.
Title of the lecture: DC Microgrids
In the last years, the growing energy demand combined with the need to access and deploy renewable energy sources has led to new investigations on DC grids as an alternative and support to the existing AC system. The three-tiered lecture includes the following topics: A research campus on DC Technology (1), DC power electronics – challenges and opportunities (2) and the DC microgrid of the future at a glance (3). A review of electrical grids and the future challenges of an efficient electrical grid with embedded regenerative energy sources is presented. Both AC grids and DC grids can be utilized to distribute electrical energy. A comparison of the two technologies with respect to the requirements of a grid of the future, indicates possible fields of applications for the DC technology. Main fields of application are DC datacenters, factories and self-sustained communities. Power electronic converters are the key component in a DC system for converting and stabilizing the voltage. AC/DC Active Front End converters are used to convert AC to DC and vice versa. The basic outline of passive as well as active converters is presented. DC/DC converters are used to adjust the PV solar system voltage to the standardized nominal grid voltage (DC). Dual Active Bridge Converters and resonant converters are used for voltage transformation. The functionality of the converters is presented, pointing out both: advantages and disadvantages. Furthermore, the impact of wide band gap devices is taught. The protective measures, that are necessary to operate a DC system safely, are highlighted. This includes protection measures that prevent electric shocks and overcurrents.
Romano NAPOLITANO (E-GI&N – International Standard ENEL- Italy)
Mr. Napolitano received his degree M.Sc. in Electronic Engineering (Communications and Computer Science) from the University “La Sapienza” of ROME. He has been working in the Electrical/Telecommunication Sectors for the last 35 years and nowadays is working on international standards development.
Mr. Napolitano joined ENEL in 1983. His experience runs from Architecture design, Telecommunications and Systems with flair for operational excellence. Extensive background in the modeling, services and telecommunications design, solutions deployment and technical/operational/security architecture optimization.
He was involved since long time in standardization activities at national and international level participating in IEC, CENELEC, ETSI, CEI and contributing for ENEL in EU Smart Grid and Smart Metering Task Forces and related Global Alliances/Associations.
Prior to joining ENEL Mr. Napolitano also worked for a national company in the field of satellite communication.
His current focus in international standardization includes Smart Energy Systems, Cyber Security, IOT and EMC.
Title of the lecture: Smart Energy Systems evolution & related International Standards
Olivier Stalter (Director, Division Power Electronics, Grids and Smart Systems Fraunhofer Institute for Solar Energy Systems ISE)
2000-2006 Study of Electrical Engineering and particularly of Power Electronics and Electrical Grids at the Grenoble Institute of Technology in France and Karlsruhe Institute of Technology in Germany (double-diploma).
2006-2009 Ph.D. at Fraunhofer ISE in the field of Concentrating Photovoltaic Systems (CPV). Development of a special inverter for dual-axis solar trackers which performs a mechanical MPP-Tracking (patented).
2009-2013 First Team- and then Group-Leader in the department Power Electronics at Fraunhofer ISE. Development of string-inverters for PV applications and battery-inverters, both hardware and software.
2013-2017 Head of Department Power Electronics. Activities ranged on milli-Watts to Mega-Watts. Focus: Power Converters for PV, electrical mobility, storage systems, grids and medium-voltage. We are operating an accredited TestLab Power Electronics with a rated power of 1 MVA since 2010 and are currently establishing a new multi-Megawatt-Labor that will go in operation in summer 2018.
Since October 2017 Head of Division Power Electronics, Grids and Smart Systems. Besides Power Electronics also development activities in the field of Smart Grids, ICT and Energy System Analysis from the level of smart cities to regions and whole countries. The Division PGS counts approximately 100 full-time scientific employees and 100 PhDs/students. We are of course actively looking for new candidates!
Lecturer at the University of Freiburg within the Master Online Solar Energy Engineering. Lecture Fundamentals of PV Systems (5 ECTS) and Lecture Electrical Engineering and Power Electronics (3 ECTS).
Title of the lecture: About the role of power electronics in the grid until 2050
Fraunhofer ISE is working since many years on a model-based and sector-wide simulation of Germany’s overall energy supply system called REMod-D. The model takes all actual energy sources into account and calculates year after year with hourly values techno-economical meaningful paths to fully replace fossil energy sources by renewables. The goal hereby is to guarantee an almost CO2 neutral energy system by 2050. Photovoltaic and Wind being the major contributors of renewable energy with several hundreds of GW of installed power each, the electrical grid will have to handle enormous amounts of power and energy in the coming decades. Moreover, the grid will become the platform for sector-coupling since it will link the electricity sector with the other three major energy sectors that are mobility, heating and industry. In addition to this, another major challenge for our future energy supply will be the replacing of synchronous generators by power electronics. Indeed, inverters will not only interface generators and consumers with the grid as they are doing today but will have to control voltage, power and frequency at all grid levels. This will be done by advanced digital controllers as well as by reflex-functions within the converters but also by smart operational management on a superposed level. All in all, power electronics will take over crucial responsibilities in our future energy supply. After an introduction about our overall energy system today and in the future, the lecture will focus on the quantitative and qualitative role of power converters in future electrical grids.
Sasa Djokic (The University of Edinburgh, Scotland, UK)
Dr Sasa Djokic received Dipl. Ing. and M. Sc. degrees in electrical engineering from the University of Nis, Nis, Serbia, in 1992 and 2001, and Ph. D. degree in the same area from the University of Manchester Institute of Science and Technology (UMIST), Manchester, United Kingdom, in 2004. Currently, he is a Reader in Electrical Power Systems at the University of Edinburgh, Scotland, UK. He is a Senior Member of the IEEE Power Engineering Society and member of IET and is involved with a number of CIGRE, IEEE, IEC and other international Working Groups and Committees. His research interests include: Power Quality and Reliability Analysis of Power Systems, Modelling and Representation of Renewable-based Distributed Generation and Storage Systems, “Smart Grids”, Load Modelling, Load Profiling and Demand Side Management
Title of the lecture: Sensitivity of Power Electronic Devices to Voltage Dips in Smart Distribution Systems
Successful transformation of existing electricity networks into the future “smart grids” essentially relies on the correct assessment and understanding of complex supply-demand interactions. In this context, Power Quality (PQ) remains to be crucial for the correct analysis of all supply-demand interactions, as it offers key indicators and metrics for describing and quantifying compatibility between the grid and customers’ equipment. From a “customer’s perspective”, the two important issues that will be discussed in depth in this lecture are a) increased sensitivity of modern power electronic equipment to various disturbances, when even a very brief voltage dip or short interruption can lead to their tripping or malfunction, and b) implementation of “smart grid” functionalities, e.g. flexible and intelligent controls, or increased automation and reconfiguration actions, which will improve system reliability, but might result in the more frequent or longer voltage dips and short interruptions.
The main aim of this lecture is to provide theoretical and experimental foundation for understanding voltage dips and analysing their impact and effects on the operation of modern electrical equipment in the context of “smart distribution systems”. In the first part of the lecture, existing PQ standards and various methodologies/procedures currently used for definition, characterisation, classification and presentation of voltage dips will be critically reviewed and discussed, as well as the most important parameters and factors that may influence sensitivity of equipment to voltage dips. Different ways for representing equipment sensitivity to voltage dips (e.g. voltage tolerance curves) will be discussed and illustrated using extensive results of testing of representative examples of different types of single-phase and three-phase equipment, which are reported as particularly sensitive to voltage dips and short interruptions.
Improved PQ performance is often assumed to be one the basic aspects of the “smart grids” and the second part of the lecture will provide a critical overview of some “smart grid” controls, e.g. increased network automation and reconfiguration operations, or implementation of automatic reclosing and sectionalising protection schemes, or high-speed switching to alternative and back-up supply points, which all typically result in multiple voltage dips (i.e. in “dip sequences”). Similarly, implementation of voltage regulation and reactive power control systems (i.e. “volt-var control”) may increase both the number and severity of voltage dips experienced by connected customers. The lecture will discuss how successful realisation of “smart grid” functionalities and services might impact overall system reliability and PQ performance levels and, particularly, customers’ perspective and perception of PQ in terms of dip sensitivity of their equipment. Finally, a novel analytical and experimental framework for assessing impact of dip sequences on equipment operation will be presented and discussed.
Enrico Maria Carlini (Terna S.p.A. – Italy)
He has worked extensively with international associations, European commission and national regulator, producer and distributor utilities, renewables project developers and operators, global equipment suppliers, research centers and universities and lawyers; being an active contributor of the Italian Grid Code and Eu Network Codes grants him a well-set knowledge on European regulatory framework for the power systems, Eu financial assistance to infrastructure projects in electricity and on the wholesale electricity market and state aid in Italy.
In his career, he has been deeply involved in load flow calculation, dynamic security assessment and voltage stability, design of defense system and special protection schemes for the national transmission grid, mid and long term network planning, also focusing on the last decade’s rapid increase of renewable energy share into the electricity supply mix. He has over 20 years of experience carrying out security analyses and congestion management, cross-border capacity calculation, resource adequacy assessment and market probabilistic modelling.
He recently got back to the System Development after a long period of experience in System Operation at the Dispatching division, where he was first in charge of the Regional Control Centre for areas Center and South of Italy, and thereafter of the National Control Centre. In particular, he led the Management and Engineering of the Electric System dealing with the relationship and technical contracts with large prosumers, interaction with public administrations and the engineering of innovative equipment and tools’ control logics for the SCADA/ EMS system.
From 1993 to 1999, he developed a significant experience with Enel at the Engineering Department and in the field of generation, working at the thermal power plants of Torrevaldaliga Nord and Brindisi Nord. Prior to joining the electricity sector, he worked in the petro-chemical industry.
Mr. Carlini holds as well long-lasting leading roles in the key organizations of the energy community, among which IEC, IEA, ENTSO-E, Cigrè, RGI and Go15.
Graduated in M.Sc. Electrical Engineering with first class of honors (Planning Power System).
Title of the lecture: RES: the biggest match ever – Operational experience and innovative techniques to go cleaner, cheaper and safer
Important changes in the provision and consumption of electricity services are now underway, driven by a combination of factors affecting the transmission sector of power systems. A variety of emerging distributed technologies – including flexible demand, distributed generation, energy storage, and advanced power electronics and control devices – are creating new options for power plants, consumers at the points of connection and the needed investments in grid infrastructure. At the same time, information and communications technologies, as well as small-scale and large-scale battery systems are rapidly decreasing in cost and becoming ubiquitous, enabling more dynamic and efficient consumption of electricity, demand response, charging electric vehicles, improved visibility and predictability of network dots and enhanced control of power systems. With this framework in place, from an operational point of view, issues such as security of supply, resource adequacy, the need of flexibility, resiliency and grid stability, TSO-DSO cooperation, observability and data management are becoming increasing important as intermittent renewables generation claims a greater share in the energy mix. The other way round, from a planning perspective, topics like transparency, stakeholder engagement, sustainability and nature conservation, economic viability, grid aesthetics to gain public acceptance and accelerate permitting processes are posing huge concerns for TSOs who have to set the stage for a significant grid reinforcement. The special session panel “RES: the biggest match ever” touches objective and topics related to the operational experience and innovative techniques put in place by Terna and the ENTSO-E community in order to cope with this complete paradigm shift away from centralized fossil fuel systems to a more decentralized, decarbonized, democratized, diversified, digitalized and disruptive model. Just no name a few:
- The energy transition and its challenges
- Software and hardware solutions to efficiently integrate renewable energy
- Climate change and the Italian resilience plan 2017
- European trans-(regional) TSO initiatives
- Resource adequacy Assessment and risk preparedness
- Energy storage solutions
- Underground cables
- Legal & regulatory framework: Clean Energy Package, European network codes and Italy’s national energy strategy 2017
Reinhold Bayerer (Infineon Technologies, Germany)
Reinhold Bayerer studied physics at the Technical University of Darmstadt, Germany and completed in 1979. He continued at this University as Research Associate and achieved his doctor’s degree in physics in 1985.He works in the field of IGBT Modules since then. A first paper on early IGBT-modules was given at PCI, Munich, 1987.He contributed to the fields of packaging technology, low inductance module design, test and application engineering, driver electronics, as well as manufacturing engineering. Several publications and patents may serve as a reference.
Today, he is Fellow for physics of power modules and working at Infineon Technologies in Warstein, Germany.
Title of the lecture: Power Circuits for Clean Switching and Low Losses
The lecture will teach the various effects of parasitic inductance (LS) in power electronics. As power density and current density is continuously rising, parasitic inductance and resistance become more and more the limiting factors. The problem is the product inductance times current (LS*I) rising, simultaneously, if designs do not improve. Not only overvoltage during switching is the problem but for bipolar power semiconductors like IGBTs and freewheeling diodes, parasitic inductance causes disadvantageous current waveforms. In systems which have snubber capacitors additional to the DC-link capacitor and parasitic inductance in between, oscillations between these capacitors occur. When considering power semiconductors in parallel the current sharing of controlled devices like IGBT, MOSFET and JFET can be affected by the presence of small parasitic inductance. Parasitic inductance in the control circuit (gate circuit) decouples driver and the gates of the devices leading to increased short circuit current, for example. To introduce these topics the tutorial will start with the basics of switching inductive loads and discussion of related waveforms. Investigations on the different effects will follow. The discussion of paralleling will be accom-panied by case studies. Geometries of conductors and system design for low parasitic inductance and good current sharing will be another main part and the conclusions will summarize the benefits of related system design – clean switching and low losses
Michele Pennese (Mecaprom, Italy)
After receiving the Master’s (Laurea) Degree in Electronic and Computer Engineering in 1988 at the University of Genoa, Michele Pennese developed an almost two decades experience in automotive components and electronic systems development at Weber and Magneti Marelli, focusing especially on innovative solutions applied to gasoline engines, transmissions and hybrid-electric powertrains.
After a five years time as Research & Development director at Micro-Vett, a leading Italian company specialized in outfitted electric vehicles production, he joined Mecaprom on March 2013 as Chief Technical Officer of Vehicles & Powertrain Systems area, afterwards was appointed Director of the Mechatronic System business unit, responsible of the design, development and application of integrated mechatronic systems and electrified powertrains.
He is qualified as Inventor at the European Patent Office, lecturer at universities seminars and international conferences.
Title of the lecture: The revenge of electric vehicles: from regulations to technologies scenario
An overview on the technological development of the electrified powertrains due to regulations and markets trends, reported to the history of propulsion systems at the origin of road vehicles.
The lecture deepens the effects of European regulations roadmap released by Transportation and Health Commissions on car makers and components suppliers development policy, focusing on the electrified powertrain architectures and related performances.
Finally a mention on conductive charging systems and a perspective of potential future development.