Produção Nacional
Revisado por pares
Connection and Disconnection Transients for Micro-Grids under Unbalance Load Condition
2014; Taylor & Francis; Volume: 24; Issue: 1 Linguagem: Inglês
10.1080/09398368.2014.11463875
ISSN0939-8368
AutoresJoan Rocabert, Gustavo M. S. Azevedo, Jose Ignacio Candela, Álvaro Luna, Frede Blaabjerg, Pedro Rodríguez,
Tópico(s)Power Systems and Renewable Energy
ResumoAbstractIn this paper the design and the implementation of a method oriented to carry out a safe and a stable intentional disconnection, and re-connection, of local micro-grids from the main distribution network under generic grid conditions, avoiding the appearance of undesired transients, will be presented. In this work a seamless transfer between grid-connected and isolated mode is achieved by means of using an adapted frequency based synchronization control loop, which works in the a/3 stationary reference frame, whose response can be dynamically adapted in function of the micro-grid operating conditions. In addition to this feature, the inner loops of the control algorithm proposed in this application have been implemented in order to provide a proper operation of the system under generic conditions, even in the presence of unbalanced loads. In order to prove the reliability and good performance of the proposed method simulation and experimental results will be provided and discussed in the last sections of the paper.Key Words: micro-griddistributed generationintentional islandmicro-grid synchronizationunbalanced load Additional informationNotes on contributorsJ. RocabertJoan Rocabert (S’08-M’ll) was born in Barcelona, Spain. He received the M.Sc. degree in electrical engineering in 2003, from the Technical University of Catalonia, Barcelona, Spain, and the Ph.D. degree in electrical engineering from the Technical University of Catalonia, in 2010, on the topic of PV micro-grids control. From 2004 to 2008 he was a research assistant in the Department of Electronic Engineering, Technical University of Catalonia. From 2008 he is with the Department of Electrical Engineering, from 2008 working as a researcher and assistant professor. His current research interests include power electronics applied to photovoltaic and wind energy systems, particularly their application into micro-grids.Gustavo M. S. AzevedoGustavo M. S. Azevedo (S’08) was born in Belo Jardim, Brazil, in 1981. He received the B.S. and M.S. degrees in electrical engineering from the Federal University of Pernambuco in 2005 and 2007, respectively, where he is currently working toward the Ph.D. degree. From 2008 to 2009, he was a Visiting Scholar at the Technical University of Catalunya, Barcelona, Spain. His research interests include integration of renewable energy systems, micro-grids and power quality.I. CandelaIgnacio Candela (S’99-M’04) received the B.S., M.S., and Ph.D. degrees from the Technical University of Catalonia (UPC), Barcelona, Spain, in 1987, 2000, and 2009, respectively, all in industrial engineering. He was an Assistant Professor in 1991 and has been an Associate Professor since 1993 with UPC. He has authored or coauthored more than 30 published technical papers and has been involved in several industrial projects and educational programs in the fields of power quality conditioning and motor drives. His current research interests include power conditioning, integration of distributed energy systems, and control of power converters and motor drives. Dr. Candela is a member of the IEEE Power Electronics Society, the IEEE Industrial Electronics Society, and the IEEE Industry Application Society.A. LunaAlvaro Luna (S’07-M’10) received the B.Sc., M.Sc., and Ph.D. degrees from the Technical University of Catalonia (UPC), Barcelona, Spain, in 2001, 2005, and 2009, respectively, all in electrical engineering. He joined as a Faculty Member at UPC in 2005, where he is currently an Assistant Professor. His research interests include wind turbines control, integration of distributed generation, and power conditioning. Dr. Luna is a Student Member of the IEEE Power Electronics Society, the IEEE Industrial Electronics Society, and the IEEE Industrial Applications Society.F. BlaabjergFrede Blaabjerg (S’86-M’88-SM’97-F’03) received the M.Sc. degree in electrical engineering from Aalborg University, Aalborg, Denmark, in 1987 and the Ph.D. degree from the Institute of Energy Technology, Aalborg University, in 1995. He was employed at ABB-Scandia, Randers, from 1987–1988. During 1988–1992 he was a PhD. student at Aalborg University, Denmark, became Assistant Professor in 1992, Associate Professor in 1996 and full professor in power electronics and drives in 1998 the same place. He has been part-time research program leader at Research Center Risoe in wind turbines. In the period of 2006–2010 he was the dean of the faculty of Engineering, Science and Medicine the same place and became visiting professor at Zhejiang University, China in 2009. His research areas are in power electronics and its applications like wind turbines, PV systems and adjustable speed drives. Since 2006 he has been Editor in Chief of the IEEE TRANSACTIONS ON POWER ELECTRONICS as well as he was distinguished lecturer for the IEEE Power Electronics Society from 2005 to 2007. It is followed up as distinguished lecturer for the IEEE Industry Applications Society from 2010 to 2011. Dr. Blaabjerg received the 1995 Angelos Award for his contribution in modulation technique and the Annual Teacher prize at Aalborg University, also 1995. In 1998 he received the Outstanding Young Power Electronics Engineer Award from the IEEE Power Electronics Society. He has received ten IEEE Prize paper awards and another prize paper award at PELINCEC Poland 2005. He received the IEEE Power Electronics Society Distinguished Service Award in 2009 as well as the EPE-PEMC 2010 Council award.P. RodriguezPedro Rodriguez (S’99-M’04-SM’10) Pedro Rodriguez received the M.Sc. and Ph.D. degrees in electrical engineering from the Technical University of Catalonia (UPC), Spain, in 1994 and 2004, respectively. He was a Postdoctoral Researcher at the Center for Power Electronics Systems (CPES), Virginia Tech, Blacksburg in 2005, and at the Department of Energy Technology, Aalborg University (AAU) in 2006. He joined the faculty of UPC as an Assistant Professor in 1990, where he became the Director of the research center on Renewable Electrical Energy Systems (SEER) in the Department of Electrical Engineering. He was also a Visiting Professor at the AAU from 2007 to 2011, acting as a co-supervisor of the Vestas Power Program. He still lectures Ph.D. courses at the AAU every year. From 2011, he is the Head of Electrical Engineering division in Abengoa Research, although he is still joined to the UPC as a part time Professor. He has coauthored one book and more than 100 papers in technical journals and conference proceedings. He is the holder of seven licensed patents. His research interests include integration of distributed generation systems, smart grids, and design and control of power converters. Dr. Rodriguez is a senior member of the IEEE, a member of the administrate committee of the IEEE Industrial Electronics Society (IES), the general chair of IEEE-IES Gold and Student Activities, the vice-chair of the Sustainability and Renewable Energy Committee of the IEEE Industry Application Society and a member of the IEEE-IES Technical Committee on Renewable Energy Systems. He is an Associate Editor of the IEEE Transaction on Power Electronics.
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