Áreas de Investigación

Modeling and emulator design for fuel cells, design and digital control of switched converters, and energy management of hybrid electric vehicles and microgrids

Biografía

Carlos Restrepo received the Bachelor degree (with honors) and the Master degree in electrical engineering in 2006 and 2007, respectively, from the Universidad Tecnológica de Pereira, Colombia, and the Master degree and the Ph.D. (with honors) degree in electronic engineering from the Universitat Rovira i Virgili de Tarragona, Tarragona, Spain, in 2008 and 2012, respectively. He was a Visiting Scholar with the Faculty of Electrical Engineering and Computer Science, University of Maribor, Maribor, Slovenia, in 2011. During 2013 and 2014, he was a Postdoctoral Researcher with the Electrical Power Processing Group, Delft University of Technology, Delft, The Netherlands. From 2014 to 2016, he was a Professor with the Departamento de Ingeniería Eléctrica, Universidad Técnica Federico Santa María, Santiago de Chile, Chile. He is currently a Professor with the Departamento de Ingeniería Eléctrica, Universidad de Talca, Curicó, Chile. His main research interests include modeling and emulator design for fuel cells, design and digital control of switched converters, and energy management of hybrid electric vehicles. He is the Director of the Laboratory of Applications in Smart Grids (LARI in Spanish) research group.

EDUCATION BACKGROUND 

• 2017: Two months  visiting researcher,
  Department of Electrical Electronics and Automatic ControlEngineering,
  Universitat Rovira i Virgili, Tarragona (Spain).
  
  
• 2016: Two months  visiting researcher,
  Electrical Engineering Department,
  National University of La Plata (Argentina)

• 2008-2012: PhD in Electronic Engineering, Automation and Communications,
  Universitat Rovira i Virgili, Tarragona (Spain),
  Thesis mark: Summa cum laude (European PhD mention),
  Supervisors: Dr. Roberto Giral and Dr. Javier Calvente.
  
  
• 2012: One-month Postdoctoral exchange,
  Faculty of Electrical Engineering and Computer Science,
  Supervisor: Dr. Miro Milanovic,
  University of Maribor, Maribor, Slovenia

• 2012: Short PhD exchange,
  Laboratory of Analysis and Architecture of Systems (LAAS),
  Supervisor: Dr. Germain Garcia,
  Toulouse, France.

• 2011: Seven months PhD exchange,
  Faculty of Electrical Engineering and Computer Science,
  Supervisor: Dr. Miro Milanovic,
  University of Maribor, Maribor, Slovenia.

• 2007-2008: Masters in Electronic Engineering,
  Universitat Rovira i Virgili, Tarragona (Spain).

• 2005-2007: Masters in Electrical Engineering,
  Universidad Tecnológica de Pereira, Colombia,
  Thesis Grade: Outstanding. Average Grade: 4.8 (5 max).

• 2000-2006: Electrical Engineering
  Universidad Tecnológica de Pereira, Colombia,
  Thesis Grade: Outstanding. Average Grade: 4.5 (5 max),
  Homologated in Spain to Industrial Technical Engineer, on Electricity Speciality in 2011.

PROFESSIONAL EXPERIENCE

• 2016-Present: Associate professor,
  Departamento de Ingeniería Eléctrica
  Universidad de Talca, Curicó, Chile.

• 2014-2016: Lecturer,
  Department of Electrical Engineering,
  Supervisor: Dr. Pablo Lezana Illesca,
  Universidad Técnica Federico Santa María, Santiago, Chile.
  
  
• 2013-2014: One-year Postdoctoral researcher,
  Department of Electrical Sustainable Energy,
  Supervisor: Dr. Pavol Bauer,
  Delft University of Technology, Delft, The Netherlands
  
  
• 2008-2011: Teaching Assistant, Control laboratory,
  Department of Electrical Electronics and Automatic ControlEngineering,
  Universitat Rovira i Virgili, Tarragona (Spain).
  
  
• 2007: Teaching Lecturer, Computing programming,
  Electrical Technology Program, Universidad Tecnológica de Pereira, Colombia.

RESEARCH PROJECTS

• 2015-2018: FONDECYT projects for initiation in research No. 11150069, Principal investigator, Feasibility Study of the Bidirectional Non-Inverting Buck-Boost Converter with Coupled Inductors to be used as a Power Electronic Building Block (PEBB): Canonical Elements, Rectifiers, and Inverters for Power Processing.

• 2013-2014: Feasibility study presents and discusses different technical scenarios for connecting two offshore wind power plants in the North Sea through TKI-SAS project, Delft University of Technology, Delft, The Netherlands.
  
  
• 2012: Implementation of silicon carbide devices to improve  the performance of power electronics systems CONSOLIDER project CSD2009-0046 "Advanced Wide Band Gap Semiconductor Devices for Rational Use of Energy (RUE)", Universitat Rovira i Virgili, Tarragona (Spain).

• 2010-2012: DC bus architectures based on PEM fuel cells for autonomous systems: design, supervision, and control (PEMbus) TEC2009-13172.  Universitat Rovira i Virgili, Tarragona (Spain).

 HONORS AND AWARDS

• 2015: Iberoamérica Scholarships: Young Teachers.
  The scholarship's aim is to facilitate the beneficiary's stay at a research center or Iberoamerican University. The minimum duration of this stay is 2 months for the professors.

• 2014: Doctoral Extraordinary Award,
  This award recognizes the doctoral thesis with the highest level of quality.
  The Governing Council presents special awards for PhD students, delivered in an official ceremony,
  Universitat Rovira i Virgili, Tarragona (Spain).

• 2009-2011: FPU Scholarship granted by the Spanish Ministry of Education,
  Scholarship for Doctoral and Masters studies with a duration of 4 years,
  FPU Scholarship granted to the best 16 graduates in Electrical, electronic, and control engineering,
  Universitat Rovira i Virgili, Tarragona (Spain).

• 2007-2009: URV PhD Research Scholarship,
  Scholarship for Doctoral and Masters studies with a 4 years duration,
  Universitat Rovira i Virgili, Tarragona (Spain).

• 2006: Jorge Roa Martínez Scholarship for Graduate Studies,
  Scholarship granted to the undergraduate students with an average greater than or equal to 4.5 (5.0 max),
  Universidad Tecnológica de Pereira, Colombia.

• 2006: Undergraduate Student with Honors,
  Distinction granted to the undergraduate students with an average greater than or equal to 4.0 (5.0 max),
  Universidad Tecnológica de Pereira, Colombia.

• 2006: Undergraduate Student with merit exaltation,
  Distinction granted to the undergraduate students to excel in the scientific field,
  Universidad Tecnológica de Pereira, Colombia.

INTERNATIONAL JOURNAL PAPERS PUBLISHED

• H. Ramirez; C. Restrepo; T. Konjedic; J. Calvente; A. Romero; C. R. Baier; R. Giral, "Efficiency Comparison of Fuel-Cell Hybrid Systems Based on the Noninverting Buck-Boost Converter," in IEEE Transactions on Power Electronics, vol.PP, no.99, pp.1-1. (accepted to be published) 2017.ž
• C. R. Baier, Miguel Torres, P. Acuna, J. Muñoz V, P. Melin, C. Restrepo, J.I. Guzman, “Analysis and Design of a Control Strategy for Tracking Sinusoidal References in Single-Phase Grid-Connected Current-Source Inverters” in IEEE Transactions on Power Electronics, vol. n, no. m, pp. (accepted to be published) 2017.
• S. Rodrigues, C. Restrepo, G. Katsouris, R. Teixeira Pinto, M. Soleimanzadeh, P. Bosman, P. Bauer, "A Multi-Objective Optimization Framework for Offshore Wind Farm Layouts and Electric Infrastructures", Energies, 9, 3, ISSN: 1996-1073, 2016,
•  C. Restrepo, G. Garcia, J. Calvente, R. Giral, and L. Martinez-Salamero, "Static and Dynamic Current-Voltage Modeling of a Proton-Exchange Membrane Fuel-Cell Using an Input-Output diffusive approach", Vol. 63, No. 2, IEEE Transactions on Industrial Electronics, ISSN 0278-0046, 2016.
•  T. Konjedic, L. Korosec, M. Truntic, C. Restrepo, M. Rodic, and M. Milanovic, "DCM-based Zero-Voltage Switching Control of a Bidirectional DC-DC Converter With Variable Switching Frequency", Vol. 31, No. 4, IEEE Transactions on Power Electronics, 2016.
•  S. Rodrigues, C. Restrepo, E. Kontos, R. Teixeira Pinto, and P. Bauer, "Trends of offshore wind projects", Renewable and Sustainable Energy Reviews, Vol. 49, pp. 1114-1135, ISSN 1364-0321, Sept. 2015.
•  H. Ramírez-Murillo, C. Restrepo, J. Calvente, A. Romero and R. Giral, "Energy Management of a Fuel-Cell SerialParallel Hybrid System", IEEE Transactions on Industrial Electronics, Vol. 62, No. 8, pp. 5227-5235, ISSN 0278-0046, Aug. 2015.
•  C. Restrepo, T. Konjedic, A. Garces,J. Calvente, and R. Giral, “Identification of a Proton-Exchange Membrane Fuel Cell's Model Parameters by Means of an Evolution Strategy”, Vol. 11, No. 2, IEEE Transactionson Industrial Informatics, ISSN 1551-3203.
• C. Restrepo, T. Konjedic, J. Calvente, and R. Giral, “Hysteretic transition method to avoid the dead zone and the subharmonics of a non-inverting buck-boost converter”, IEEE Transactions on PowerElectronics, Versión online disponible, ISSN 0885-8993.
•  H. Ramírez-Murillo, C. Restrepo, J. Calvente, A. Romero and R. Giral, “Energy Management DC System Basedon Current-Controlled Buck-Boost Modules”, IEEE Transactions on Smart Grid, Vol. 5, No. 5, pp. 2644 - 2653, ISSN 1949-3053.
•  C. Restrepo, T. Konjedic, C. Guarnizo, O. Aviño, J. Calvente, A. Romero, and R. Giral, “Simplified mathematical model to calculate the oxygen excess ratio of a PEM fuel cell system by real-time applications”, IEEE Transactions on Industrial Electronics, vol.61, no.6, pp.2816-2825, June 2014, ISSN 0278-0046.
•  C. Restrepo, T. Konjedic, J. Calvente, M. Milanovic and R. Giral, “Fast Transitions Between Current Control Loops of the Coupled-Inductor Buck-Boost DC-DC Switching Converter”, IEEE Transactions on Power Electronics Letters, ISSN 1540-7985. Vol. 28, No.8, pp. 3648-3652, Aug. 2013.
•  C. Restrepo, O. Aviño, J. Calvente, A. Romero, M. Milanovic, and R. Giral, “Reactivation System for Proton-Exchange Membrane Fuel-Cells”, Energies, No. 5, pp. 2404-2423, ISSN1996-1073, 2012.
•  C. Restrepo, C.A. Ramos-Paja, R. Giral, J. Calvente, and A. Romero, “Fuel cell emulator for oxygen excess ratio estimation on power electronics applications”, Computers&ElectricalEngineering, Vol.38, No.4, pp. 926-937, ISSN 0045-7906, July 2012.
•  C. Restrepo, T. Konjedic, J. Calvente, and R. Giral, “A review of the main power electronics' advances in order to ensure efficient operation and durability of PEMFCs”, Automatika“, Journal for Control, Measurement, Electronics, Computing and Communications, Online ISSN1848-3380, Print ISSN 0005-1144, Vol.2, No.53, pp. 184-198, April - June 2012.
•  C. Restrepo, J. Calvente, A. Romero, E. Vidal-Idiarte, and R. Giral, “Current_Mode Control of a Coupled Inductor Buck-Boost DC-DC Switching Converter”, IEEE Transactions on Power Electronics, Vol.27, No.5, pp. 2536-2549, ISSN 0885-8993, May 2012.
•  C. Restrepo, J. Calvente, A. Cid-Pastor, A.E. Aroudi and R. Giral, “A Noninverting Buck-Boost DC-DC Switching Converter With High Efficiency and Wide Bandwidth”, IEEE Transactions on Power Electronics, Vol. 26, No. 9, pp. 2490-2503, ISSN 0885-8993, Sept. 2011.

BOOKS, CHAPTERS & REPORTS

• C. Restrepo, R. Giral, and J. Calvente, \PEM fuel cell modeling and converters design for a 48 V DC power bus", LAP Lambert Academic Publishing, ISBN-13 978-3-659-50885-1, ISBN-10 3659508853, EAN 9783659508851, 208 pages, December 2013.

FULL PAPERS IN CONFERENCES AND WORKSHOPS

• Ramírez, J. Calvente, A. Romero, R. Giral, C. Restrepo, "Energy management of a fuel cell serial-parallel hybrid system", 11th International Multi-Conference on Systems, Signals & Devices (SSD), Spain, Barcelona, 2014.
•  J. Calvente, H. Ramírez-Murillo, E. Vidal-Idiarte, R. Giral, C. Restrepo, "Multisampled average current control of switching power converters", IEEE International Conference on Industrial Technology (ICIT), Spain, Seville, 2015, 5
•  C. Restrepo, G. Garcia, J. Calvente, A. Romero, R. Giral, L. Martínez-Salamero, “Model identification of a Proton-Exchange Membrane Fuel-Cellfroman input-output experiment: The diffusive representation approach”, 2013 European Control Conference (ECC), Zürich, Switzerland, 17-19 Jul.2013.
•  H. Ramírez, C. Restrepo, J. Calvente, A. Romero, R. Giral, “Start systems for a Buck-Boost Converter using to feed a DC Bus (in Spanish)”, Seminar on Automation, Industrial Electronics and Instrumentation SAAEI 2012, University of Minho, Guimara_es, Portugal, 11-13 Jul. 2012.
•  O.Aviño, C. Restrepo, A. Romero, R. Giral, J. Calvente, E. Vidal-Idiarte, “System for monitoring the rate of excess oxygen for fuel cells using simplified calculation (in Spanish)”, Seminar on Automation, Industrial Electronics and Instrumentation SAAEI 2012, University of Minho, Guimara_es, Portugal,11-13 Jul. 2012.
•  C. Restrepo, J. Calvente, R. Giral, M. Milanovic, “Virtual instrument for the characterization of inductors at different operation points”, XIII International PhD Workshop OWD 2011, ISBN 83-922242-8-0, Wisla, Poland, 22-25 Oct. 2011.
•  C. Restrepo, J. Calvente, R. Giral, A Gárces, A. Romero, “Circuital model parameters determination using an evolutionary algorithm to Electrical Impedance Spectroscopy analysis (in Spanish)”, Seminar on Automation, Industrial Electronics and Instrumentation SAAEI 2010, The University of the Basque Country, ISBN 978-84-95809-75-9, Bilbao, Spain, 7-9 Jun. 2010.
•  C. Restrepo, C. Torres, J. Calvente, R. Giral, R. Leyva, “Simulator of a PEM Fuel-Cell Stack based on a Dynamic Model”, 35th Annual Conference of IEEE Industrial Electronics 2009 IECON'09, pp.2796-2801, University of Porto, Porto, Portugal, 3-5 Nov. 2009.
•  C. Restrepo, C. Torres, J. Calvente, R. Giral, R. Leyva, A. Romero, J. Molina, “PEM fuel cell digital emulator based in a dynamic circuital model (in Spanish)”, Seminar on Automation, Industrial Electronics and Instrumentation SAAEI 2009, Carlos III University of Madrid, ISBN 978-84-692-2596-7, Madrid, Spain, 1-3 Jul. 2009.
•  C. Torres, R. Leyva, C. Restrepo, J. Calvente, “Takagi-Sugeno fuzzy approach for modeling a Buck-Boost Converter (in Spanish)”, Seminar on Automation, Industrial Electronics and Instrumentation SAAEI 2009, Carlos III University of Madrid, ISBN 978-84-692-2596-7, Madrid, Spain, 1-3 Jul. 2009.
•  C. Restrepo, J. Calvente, R. Giral, “Virtual instrument to obtain the mathematical inductor model at different operating points (in Spanish), Seminar on Automation, Industrial Electronics and Instrumentation SAAEI 2008, Technical University of Cartagena, ISBN 978-84-969-9704-2, Cartagena, Spain, 9-11 Sep. 2008.

OTHER PUBLICATIONS

• Torres, C. Restrepo and A. Alzate, “Considerations of static and dynamic design for converters DC-DC (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 2, No. 42, August, pp. 57-62, 2009.
• C. Restrepo, J. Molina and C. Torres, “Genetic algorithm to the optimal location of sensors on a robot line follower (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 1, No. 41, May, pp.87-92, 2009.
• C. Restrepo, A. Alzate, C. Torres and J. Molina, “Simultaneous localization and mapping using the extended Kalman Filter (in Spanish)”, Ingeniería UC, ISSN 1316-6832, Vol. 16, No. 1, April, pp. 11-18, 2009.
•  C. Torres, D. Murillo and C. Restrepo, “Design and Construction of a Three-phase inverter (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 3, No. 40, December, pp. 37-42, 2008.
•  A. Alzate, C. Torres and C. Restrepo, “Fuzzy Power System Stability design based in the LMI technique (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 3, No. 40, December, pp. 31-36,2008.
• J. Molina, C. Torres and C. Restrepo, “New Artificial intelligence techniques for the solution of labyrinths With unknown structure (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 2, No. 39, September, pp. 135-140, 2008.
•  A. Alzate, C. Torres and C. Restrepo, “Control of a STATCOM on a Power System by Means of Pole Placement and LQR (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 2, No. 39, September,66-7 1, 2008.
•  A. Alzate, C. Torres and C. Restrepo, “Design of the Parameters based on Evolutionary Technique of a Power System Stability (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 5, No. 37, December, pp. 31-36, 2007.
•  A. Alzate, A. López and C. Restrepo, “Fuzzy control of mobil platform for trajectories follower (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 3, No. 35, August, pp. 169-174, 2007.
•  S. Sánchez, C. Restrepo and Y. Restrepo, “Petri nets implementation for the design of electrical substations grounding (in Spanish)”, Tecnura, ISSN 2248-7638, Vol. 10, No. 20, pp. 103-114, 2007.
•  J. Molina and C. Restrepo, “Matrix notation in the neural network training (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 2, No. 34, May, pp. 103-107, 2007.
•  C. Restrepo, L. Ríos and H. Parra, “Interface of communication, visualization and navigation control of the P-METIN mobile platform (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 2, No. 28, October, pp. 41-46, 2005.
•  J. Cordoba, C. Restrepo and L. Ríos, “Description of the P-METIN mobile platform implemented for the study of intelligent navigation techniques (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 1, No. 27, April, pp. 37-42, 2005.
•  C. Restrepo and M. Granada, “Using a genetic algorithm for the design of substation ground grid with the security normative and the minimum cost (in Spanish)”, Energía y Computación, ISSN 0121-5299, Vol. 13, No 1, December, pp. 45-50, 2005.
•  C. Restrepo, “Alternatives analysis of the spherical magnet (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 2, No. 25, August, pp. 23-27, 2004.
•  C. Restrepo, “Several alternatives to evaluate magnetic flux of direct current excited ferromagnetic structure (in Spanish)”, Scientia et Technica, ISSN 0122-1701, Vol. 2, No. 22, October, pp. 61-66,2003.