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  Energy Day

Energy Day: «Distributed Generation - Towards a new Energy Paradigm»
Mallorca, Spain. September 22nd 2009.
Josep M. Guerrero, Technical University of Catalonia, Spain


This year the IEEE Conference on Emerging Energy DayTechnologies and Factory Automation (ETFA) was located in Mallorca, Balearic Islands, Spain, with two new activities related to Energy issues. The first one is that the best papers presented in the conference about energy issues will be selected to be published in the International Journal of Integrated Energy Systems. The second one is that the conference began with the Energy Day, under the title Distributed Generation (DG) – Towards a new Energy Paradigm.
Energy Day was opened by Prof James C. Hung, IEEE Industrial Electronics Society, and the local representatives. Following the warm welcoming, the first presentation was given by Prof Frede Blaabjerg, Aalborg University, Denmark, who was focused on power electronics converters for renewable energy resources, like photovoltaic or wind energy systems. Concepts and trends in wind power parks and wind turbines, their power converter topologies and configurations were presented. Following, Prof Toshko Zhelev, University of Limerick, Ireland, introduced concepts like fuel re-synthesis, CO2 absorption and storage, and presented the technology of microreactors able to perform those processes, as well as their DG strategies. Then, Dr Kas Hemmes, Tech Univ Delft, The Netherlands, introduced a systematic approach for the integration of energy system components. Interesting examples about hydrogen and wind energy integration were presented and discussed after and during the coffee break. Energy Day
After the break, Dr Samir Jemeï, University of Franche-Comté, France, exposed the operation principles of fuel cells, their classification, and modeling. He explained in detail the trends in fuel cell and hydrogen systems, focusing on technology challenges and their grid integration. Then, Dr María P. Comech, Fundación CIRCE, Spain, presented an interesting truck able to test the low voltage ride-through performance of real wind turbines by generating voltage dip profiles described in the international grid codes. Back to power electronics, Prof. Éric Monmasson, University Cergy-Pontoise, France, disserted about advanced digital controller implementation. He presented the main FPGA technologies and their control design rules. Applications of power electronics and drives control by using FPGA devices were discussed. Before the lunch, Dr Giovanni Spagnuolo, University of Salerno, Italy, centered his speech in the optimization of photovoltaic systems, reviewing maximum power point tracker (MPPT) strategies and algorithms. It was highlighted the distributed MPPT power electronics systems suitable for DG. After the lunch, myself, Dr Josep M. Guerrero, talked about hierarchical control of flexible microgrids as a way to integrate distributed energy generation and storage systems. The smart-grid concept and the DG integration by using intelligent microgrids were explained.
Finally, two electrical operator companies from Spain closed this amazing Energy Day. The first one, Red Eléctrica Española (REE) was represented by Mr Ramón Granadino, which talked about the integration of renewable energy into transmission grids. The electrical power grid of Spain was shown as a good example of high penetration of renewable energy systems. The second one, GESA-ENDESA, represented by Dr. Juan Frau, versed about the challenges, impacts, and opportunities that can be derived from an intensive DG implementation. In this sense, he presented Mallorca as a physical and energetic island.
Following an interesting discussion between the researchers and the electrical grid companies, all the participants went to visit the waste-to-energy plant that belongs to TIRME Company. The engineers of this company showed the transformation process from non-recyclable dustbin to electrical energy. It is worth to say that this power plant generates around 20MW of electrical energy, and the 20% is used for supply the power plant itself.

I would like to express my gratitude to IEEE ETFA organizers, IEEE IES society, TIRME, and all the speakers and assistants that contribute to this Energy Day. Special thanks and congratulations to Prof Frede Blabjerg, who the day after was traveling to San José to receive the Distinguished Service Award from the IEEE Power Electronics Society.


More information: http://www.etfa2009.org/program/energy-day