Plenary speakers and talks

Tuesday 21st May 2019

Nicola Femia

Università degli studi di Salerno
Fisciano (SA), Italy

From Power Electronics to Energetic Intelligence: an evolutionary challenge for designers and educators

Power Electronic Circuits provide electrical energy to all the objects making our life more comfortable, safer and funnier, like smart phones and watches, aircraft and automobiles, implanted prostheses and magnetic resonance machines, blenders and microwave ovens, robots and drones, digital TV sets and personal computers.

The Design of Power Electronic Circuits is an exciting intellectual dare for students and educators, as it stimulates insight of interdisciplinary knowledge, understanding of new technologies, exploration of unconventional modeling and design solutions, discovery of the power of mathematics, reinforcement of problem solving capability, intelligent use of the energy and ultimately preservation of the environment and of the Earth's resources. Power Electronic Circuits have today to implement much more enhanced energy processing functions than in the past. University education and industry training has to coherently enhance, to proactively drive this evolution and to guide talented students and designers towards the achievement of powerful professional skills. The presentation intends to overview modern power electronics design issues and to propose a vision of the knowledge, methods and tools needed to bridge power designers to the land of Energetic Intelligence.

Nicola Femia is Professor at the University of Salerno, Italy, where he teaches Power Electronics, Energetic Intelligence, and Green Energy Digital Control in the Electronic Engineering and Computer Engineering Master Programs. His research activities encompass circuit theory and applications, design and optimization of switching power supplies, magnetic power components modeling and optimization, power electronics and control techniques for photovoltaic systems, wireless power transfer systems.

He is co-author of more than 180 scientific papers, one book and six patents. He leads the Power Electronics and Renewable Sources Laboratory of the Computer and Electrical Engineering and Applied Mathematics Department of the University of Salerno. In the last two decades he has directed and developed many research and education projects on power electronics, in collaboration with worldwide leader companies, including National Semiconductor, Texas Instruments, National Instruments, STMicroelectronics, Power-One/ABB, Whirlpool, Coilcraft, Wurth. He held more than 50 invited lectures, courses and seminars on Power Electronics Design and Education for universities and industries over Europe, United States, China and India.

In 2014 he has been Visiting Professor in the Electrical Engineering Department of the Stanford University, Stanford, CA, where he taught Power Electronics Control and Energy Aware Design in the Electrical Engineering Enhanced Master Program. He is the author and co-creator of the Texas Instruments Power Management Laboratory Kit (TI-PMLK), of the Texas Instruments Power Electronics board for National Instruments Elvis III, of the TI-PMLK BUCK-Wurth Elektronik Edition, and relevant curricula, which are worldwide used nowadays in universities and industries for power electronics education and training.

Wednsday 22nd May 2019

Seddik Bacha

G2Elab - Université de Grenoble-Alpes
Grenoble, France

The plugin electric vehicle: grid disturbances provider or a mean to improve the grid operation?

The Plugin Electric Vehicle (PEV) has attracted increasing interest from the public, the manufacturers and finally from the grid operators. It is due to public policies and/or ecological concerns, business and sometimes to its potential threat for the grid operation.

The PEV first interesting characteristic is its randomized multidimensionality: state of charge of the battery, location, times of arrival and departure. To increase the complexity, one can add the human in the lop. All of these factors make the PEV a source of multidisciplinary locks. The first actor to be impacted will the power grid because the PEV is necessarily an additional burden and consequently it will be necessary to add new resources. If there is no planed actions, the grid will be disturbed and will suffer disturbances, congestions and serious impacts on voltage and frequency behaviors.

However, with a four quadrants on-board charger, the PEV can be used as a flexible mean of storage, then can provide various grid functionalities, facilitate the integration of renewable energy, furnish a provision of primary reserves for the frequency and voltage or even shape the overall load curve.

If these features are interesting, needless to say that these functions are strongly constrained by the Grid structural limits, by the PRVs availability, by regulations and finally by the economic viability of the corresponding business model. This presentation will attempt to explain all of these points and will propose a few avenues for reflection.

Seddik Bacha was born in Ighram, Algeria in 1958. He received the Engineering and Magister degrees from the National Polytechnic School of Algiers, Algiers in 1982 and 1990, respectively. He joined the Grenoble Electrical Engineering Laboratory (G2Elab) and received the PhD and HDR degrees in 1993 and 1998, respectively. His research interests are based on the modeling and the control of electrical energy processes: Renewable energy systems, Intelligent buildings, V2G, microgrids and HVDC supergrids.

He served as Assistant Professor during six years in Algeria at the National Polytechnic School of Algiers and University of Bgayet-Bejaïa. In 1993 he has been appointed as Assistant Professor at Grenoble University and got Professor position in 1998. He has recently co published a book on Grid Optimal Integration of Electric Vehicles. He is an Associate Editor of IEEE Transactions on Industrial Electronics since 2015. His personal work deals with the optimization of energy flows in microgrids, the integration of renewable energies, the real-time control of unconventional loads (V2G, Intelligent Building) and finally HVDC systems.

He is currently Program Scientific Director and Scientific Council Chair at the SuperGrid Institute of Energy Transition (France), and Research Officer within Grenoble Electrical Engineering of Grenoble.

Thursday 23rd May 2019

Mariel Triggianese

Noordwijk, The Netherlands

Space power system and electronics. Design, inspiring principles and challenges

Designing Space power system means dealing with several factors that make the difference with terrestrial world. The first constrains are due to Space environment effects, which impose the development and consequently the use of specific technologies. The additional and fundamental requirement of containment of failure propagation represents the challenge to face in power system engineering and power electronics design. Knowing that once launched, (usually) no repair is possible, the rule was born that “No single component failure shall result in a significant loss of spacecraft operation.” This apparently “innocuous” statement has a very important consequence for the redundancy, reliability and performance aspects of the power-system. This constraint implies at least: modular concepts, redundancy schemes, which can be hot and/or cold, separation of critical sub-circuits (both mechanically and electrically) and additional features incorporated in each module to avoid failure propagation. Failure propagation in systems are caused by failures in circuits elements, therefore a list of failure modes of parts needs to be taken into account when performing a failure mode effects analyses (and design). Moreover, failures in circuits can cause short circuits, over current or over voltage conditions. Therefore protections need to be used.

In order to define requirements for performance, reliability and quality ESA standards (ECSS requirements, E-20, Q-60, Q-30) have been produced. They are the applicable reference documents for the space power designers.

The lecture will address the common design and verification process for space power. In particular, it will deal with the basic concepts to ensure reliability in space (Redundancy, Protections, Autonomy, Derating), how to design and verify for reliability (First Design or Analyses?) and a short explanation of the required typical analysis document (FMECA, PSA, THA). Few (circuit) example will be shown.

Mariel Triggianese, of Italian Nationality, took the degree in Electronics Engineering in 2004 at Università della Campania Luigi Vanvitelli, where she also pursued Ph.D. in "Conversione dell’energia elettrica" in 2007. In 2008 she started a post-doct in Space power electronics at European Space Agency (ESA), in the European Space Technology and Research Centre (ESTEC) in Noordwijk, The Netherlands. From 2010 she is working as Power Conditioning Engineer in the Electrical Department in ESA/ESTEC, supporting Space Projects and new Research and Development activities.

Last update: 9th May 2019