Carlos Olalla

Last Update: September 2024


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Hi! I am Carlos Olalla, Serra Hunter Professor in the GAEI group of the Dept. of Electrical, Electronic and Automatic Control Engineering in Universitat Rovira i Virgili , Tarragona, Catalonia. I have held the Marie Sklodowska-Curie and also the Beatriu de Pinós individual fellowships in this department, besides of being selected (but not appointed) in the Ramon y Cajal and Juan de la Cierva programs.

Previously, I was a postdoctoral researcher and a lecturer in the Dept. of Electrical, Computer, and Energy Engineering at the University of Colorado at Boulder, Colorado and also in the MAC group at LAAS-CNRS in Toulouse, France.

My research interests are in the areas of automatic control, power electronics and optimization. Specifically, on new power conversion architectures and control strategies for renewable energy systems (e.g., photovoltaics), electric power distribution, lighting, or wireless power transfer, among others.

I obtained my PhD degree in Advanced Automatic Control and Robotics from the Universitat Politècnica de Catalunya, Barcelona.

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Publication List in Google Scholar, WoS Researcher ID and Scopus

Journal Papers

  1. U. Ahmad, R. Giral, C. Olalla, A. Sangwongwanich, P. Davari, F. Blaabjerg, "Multiphase LLC Resonant Converter with Natural Current Sharing and Phase-Shedding," IEEE Transactions on Industry Applications, DOI: 10.1109/TIA.2025.3544983, Early Access, 2025.
  2. N. Zaupa, C. Olalla, I. Queinnec, L. Martinez-Salamero, L. Zaccarian, "Hybrid control of self-oscillating resonant converters with three-level input," IEEE Control Systems Letters, Volume 7, pp. 1375-1380, 2023.
  3. N. Zaupa, L. Martinez-Salamero, C. Olalla, L. Zaccarian, "Hybrid control of self-oscillating resonant converters," IEEE Transactions on Control Systems Technology, Volume 31, Issue 2, pp. 881-888, 2023.
  4. N. Aouani, C. Olalla, "Robust LQR Control for PWM Converters with Parameter-Dependent Lyapunov Functions," Applied Sciences, Special Issue on Advances in Control of Power Electronic Converters, 2020, 10(21), 7534.
  5. C. Deline, S. Ayala-Pelaez, S. MacAlpine, C. Olalla, "Estimating and parameterizing mismatch power loss in bifacial photovoltaic systems," Progress in Photovoltaics, Volume 28, Issue 7, pp. 691-703, 2020.
  6. C. Olalla, Md. N. Hasan, L. Martínez-Salamero, "Recoverable Energy in Photovoltaic Systems with Submodule Level Dispersion Losses ," Solar Energy, Volume 198, 1 March 2020, Pages 376-384.
  7. R. Bonache-Samaniego, C. Olalla, H. Valderrama-Blavi, L. Martinez-Salamero, "Analysis and Design of Self-Oscillating Resonant Converters with Loss-Free Resistor Characteristics," Energies, Volume 13, Issue 14, paper ID 3743, 2020.
  8. H. Valderrama-Blavi, E. Rodriguez-Ramos, C. Olalla, X.Genaro-Muñoz, "Sliding-Mode Approaches to Control a Microinverter Based on a Quadratic Boost Converter ," Energies, Volume 12, Issue 19, paper ID 3697, 2019.
  9. H. Valderrama-Blavi, A. Leon-Masich, C. Olalla, A.Cid-Pastor, "A Loss-Free Resistor-Based Versatile Ballast for Discharge Lamps," Energies, Volume 12, Issue 7, paper ID 1403, 2019.
  10. A. El Aroudi, L. Benadero, E. Ponce, C. Olalla, F. Torres, L. Martínez-Salamero, "Nonlinear Dynamic Modeling and Analysis of Self-Oscillating H-Bridge Parallel Resonant Converter Under Zero Current Switching Control: Unveiling Coexistence of Attractors," IEEE Transactions on Circuits and Systems I: Regular Papers, Volume 66, Issue 4, pp. 1657-1667, 2019.
  11. A. El Aroudi, L. Benadero, E. Ponce, C. Olalla, F. Torres, L. Martínez-Salamero, "Suppression of Undesired Attractors in a Self-Oscillating H-Bridge Parallel Resonant Converters Under Zero Current Switching Control," IEEE Transactions on Circuits and Systems II: Express Briefs, , Volume 66, Issue 4, pp. 692-696, 2019.
  12. C. Olalla, Md. N. Hasan, C. Deline, D. Maksimovic, "Mitigation of Hot-Spots in Photovoltaic Systems Using Distributed Power Electronics," Energies, Volume 11, Issue 4, paper ID 726, 2018.
  13. C. Olalla, D. Maksimovic, C. Deline, L. Martinez-Salamero, "Impact of Distributed Power Electronics on the Lifetime and Reliability of PV Systems," Progress in Photovoltaics: Research and Applications, Volume 25, Issue 10, pp. 821–835, 2017.
  14. R. Bonache-Samaniego, C. Olalla, L. Martinez-Salamero, "Dynamic Modeling and Control of Self-Oscillating Parallel Resonant Converters Based on a Variable Structure Systems Approach," IEEE Transactions on Power Electronics, Volume 32, no.2, pp.1469-1480, 2017.
  15. K. Doubleday, C. Deline, C. Olalla, B. Choi, D. Maksimovic, " Recovery of Inter-Row Shading Losses Using Differential Power-Processing Submodule DC-DC Converters," Solar Energy, Volume 135, Pages 512–517, October 2016, .
  16. R. Bonache-Samaniego, C. Olalla, L. Martinez-Salamero, "Design of Self-Oscillating Resonant Converters Based on a Variable Structure Systems Approach," IET Power Electronics, Volume 9, Issue 1, pp. 111-119, January 2016.
  17. 2015 Second Prize Best Paper Award: C. Olalla, C. Deline, D. Clement, Y. Levron, M. Rodriguez, D. Maksimovic, "Performance of Power Limited Differential Power Processing Architectures in Mismatched PV Systems," IEEE Transactions on Power Electronics, Volume 30, no.2, pp.618-631, February 2015.
  18. R. Haroun, A. El Aroudi, A. Cid-Pastor, G. Garcia, C. Olalla, L. Martinez-Salamero, "Impedance Matching in Photovoltaic Systems Using Cascaded Boost Converters and Sliding-Mode Control," IEEE Transactions on Power Electronics, Volume 30, no.6, pp.3185-3199, June 2015.
  19. Y. Levron, D. Clement, B. Choi, C. Olalla, D. Maksimovic, "Control of Submodule Integrated Converters in the Isolated-Port Differential Power Processing Photovoltaic Architecture," IEEE Journal of Emerging and Selected Topics in Power Electronics, Volume 2, no.4, pp.821-832, December 2014.
  20. C. Olalla, C. Deline, D. Maksimovic, "Performance of Mismatched PV Systems with Submodule Integrated Converters," IEEE Journal of Photovoltaics, Volume 4, no.1, pp.396-404, January 2014.
  21. C. Olalla, D. Clement, M. Rodriguez, D. Maksimovic, "Architectures and Control of Sub-Module Integrated DC-DC Converters for Photovoltaic Applications," IEEE Transactions on Power Electronics, Special Issue on Photovoltaics, Volume 28, no.6, pp.2980-2997, June 2013.
  22. C. Olalla, I. Queinnec, R. Leyva, D. Maksimovic, "Robust Gain-Scheduled Control of Switched-Mode DC-DC Converters," IEEE Transactions on Power Electronics, Volume 27, Issue 6, pp. 3006 - 3019, 2012.
  23. C. Olalla, C. Carrejo, R. Leyva, C. Alonso, B. Estibals, "Digital QFT Robust Control of DC-DC Current-Mode Converters," Electrical Engineering, March 2013, Volume 95, Issue 1, pp 21-31.
  24. R. Leyva, C. Olalla, H. Zazo, C. Cabal, A. Cid Pastor, I. Queinnec, C. Alonso, "MPPT based on Sinusoidal Extremum-Seeking Control in PV Generation," International Journal of Photoenergy, Volume 2012 (2012), Article ID 672765, 7 pages.
  25. C. Olalla, I. Queinnec, R. Leyva, A. El Aroudi, "Optimal State-Feedback Control of Bilinear DC-DC Converters with Guaranteed Regions of Stability," IEEE Transactions on Industrial Electronics, vol.59, no.10, pp.3868-3880, Oct. 2012.
  26. C. Olalla, I. Queinnec, R. Leyva, A. El Aroudi, "Robust Optimal Control of Bilinear DC-DC Converters", Control Engineering Practice, vol. 19, Issue 7, pp. 688-699, 2011.
  27. R. Leyva, C. Olalla, I. Queinnec, S. Tarbouriech, C. Alonso, L. Martinez-Salamero, "Passivity-based Control for Large-signal Stability of High-order Switching Converters", Asian Journal of Control, Volume 14, Issue 2, pages 335-347, 2010.
  28. C. Olalla, R. Leyva, A. El Aroudi, I. Queinnec, "Robust LQR Control for PWM Converters: an LMI approach," IEEE Transactions on Industrial Electronics, vol.56, no.7, pp.2548-2558, July 2009.
  29. C. Olalla, R. Leyva, A. El Aroudi, I. Queinnec, "LMI Robust Control Design for Boost PWM Converters," IET Power Electronics, vol. 3, no. 1, pp. 75-85, January 2010.
  30. C. Olalla, R. Leyva, A. El Aroudi, P. Garcés, "QFT Robust Control of Current-Mode Converters: Application to Power Conditioning Regulators," International Journal of Electronics, vol. 96, pp. 503-520, 2009.

Patents

  1. C. Olalla, N. Zaupa and L. Martinez-Salamero " Hybrid Controller and Hybrid Control Method for a Resonant Converter", PCT EU Patent App. PCT/EP2022/088081
  2. C. Olalla, L. Martinez-Salamero and R. Bonache " Balastro electrónico auto-oscilante con atenuación de luz para una lámpara y sistema que lo incluye", ES Patent App. P/2016/31618
  3. D. Maksimovic and C. Olalla, " Balancing, filtering and/or controlling series-connected cells", US Patent App. 13/842,943

Books and Chapters

  1. C. Olalla, A. El Aroudi, R. Leyva and I. Queinnec, " LMI Robust Control of PWM Converters: An Output-Feedback Approach", Recent Advances in Robust Control, Andreas Mueller (Ed.), InTech, 2011.
  2. C. Olalla, I. Queinnec, R. Leyva, " Robust Linear Control of DC-DC Converters: A Practical Approach to the Synthesis of Robust Controllers", VDM Verlag Dr. Müller, 2010.

Conference Papers

  1. U. Ahmad, R. Giral, C. Olalla, "Sensorless Control of Series Stacked Buffer Converter in a Microinverter Architecture," presented in the 2024 Energy Conversion Congress and Exposition Europe (ECCE Europe). Sep. 02-06, 2024. Darmstadt, Germany.
  2. U. Ahmad, R. Giral, C. Olalla, "Two-Phase LLC Converter with Common LC Branch for Inherent Current-Sharing and Phase-Shedding Ability," presented in the 2024 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA 25-29 February 2024.
  3. U. Ahmad, R. Giral, C. Olalla, "Small-Signal Model and Controller Design of Interleaved Isolated Boost Converter for PV Application," presented in the 48th Annual Conference of the IEEE Industrial Electronics Society (IECON), Brussels, Belgium, 17-20 October 2022.
  4. R. Estalella-Rodriguez, C. Olalla, A. Cid-Pastor, I. Queinnec, "Numerical Methods for the Robust Stability and Performance of Power Conversion Systems," presented at ECCE'22 Energy Conversion Congress and Exposition, 9-13 October 2022, Detroit, Michigan.
  5. R. Estalella-Rodriguez, C. Olalla, A. Cid-Pastor, "Numerical Methods for the Robust Stability and Performance of Power Conversion Systems," presented at Seminario Anual de Electrónica y Automática Industrial (SAAEI'2022), Lleida, 6-9 July 2022.
  6. U. Ahmad, C. Olalla, R. Giral, "Microinverter Architecture with Submodule-Level Balancing and Active Power Decoupling," presented in the 13th IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Kiel, Germany, 26-29 June 2022.
  7. N. Zaupa, L. Martínez-Salamero, C. Olalla, L. Zaccarian, "Results on hybrid control of self-oscillating resonant converters," presented in the 7th IFAC Conference on Analysis and Design of Hybrid Systems ADHS 2021: Brussels, Belgium, 7-9 July 2021.
  8. M. Sanz, D. Ochoa, F. Huerta, A. Lazaro, C. Olalla, A. Cid-Pastor, "Reduced-Order VSI Model for Stability Analysis and Low-Cost PHIL Realizations," presented in the 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, 9-12 November 2020.
  9. C. Deline, S. Ayala-Pelaez, S. MacAlpine, C. Olalla, " Bifacial PV System Mismatch Loss Estimation and Parameterization," presented in the 36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Marseille, France, 9-13 September 2019.
  10. N. Md. Hasan, R. Estalella, L. Martínez-Salamero, C. Olalla, " Bidirectional Isolated DC-DC Converter with Unity Gain for Low Power Applications," presented in the International Conference on Electrical and Computer Engineering (ICECE), Dhaka, Bangladesh, 20-22 December 2018.
  11. L. Benadero, F. Torres, A. El Aroudi, C. Olalla, "Delay effects on the limit cycling behavior in an H-bridge resonant inverter with zero current switching control strategy", 2018 International Symposium on Nonlinear Theory and its Applications, NOLTA-2018, Tarragona, 2-6 September, 2018.
  12. N. Md. Hasan, L. Martínez-Salamero, C. Olalla, "Bidirectional Isolated Low Power DC-DC Converter for Balancing of Utility-Scale PV Systems," presented at Seminario Anual de Electrónica y Automática Industrial (SAAEI'2018), Barcelona, 4-6 July 2018.
  13. R. Bonache-Samaniego, C. Olalla, L. Martinez-Salamero and D. Maksimovic, " 6.78 MHz Self-Oscillating Parallel Resonant Converter Based on GaN Technology," presented in APEC 2017, March 26-30, Tampa, Florida.
  14. R. Bonache-Samaniego, C. Olalla, L. Martinez-Salamero, "Análisis Orientado al Diseño de un Convertidor Resonante LCC Auto-Oscilante," presented at Seminario Anual de Electrónica y Automática Industrial (SAAEI'2016), Elche, Spain - 6-8 July 2016.
  15. C. Olalla, R. Bonache-Samaniego, L. Martinez-Salamero, "Dynamic Modeling of Self-Oscillating Resonant Converters," presented at COMPEL'15 IEEE Workshop on Control and Modeling for Power Electronics, July 12-15, 2015, Vancouver, Canada.
  16. R. Bonache-Samaniego, C. Olalla, L. Martinez-Salamero, "Diseño de Convertidores Resonantes Auto-Oscilantes Basado en Control de Estructura Variable," presented at Seminario Anual de Electrónica y Automática Industrial (SAAEI'2015), Zaragoza, Spain - 8-10 July 2015.
  17. K. Doubleday, C. Deline, C. Olalla and D. Maksimovic, "Performance of Differential Power-Processing Submodule DC-DC Converters in Recovering Inter-Row Shading Losses," presented at PVSC'15 IEEE Photovoltaics Specialist Conference, 14-19 June 2015, New Orleans, Louisiana.
  18. C. Olalla, C. Deline, D. Maksimovic, " Modeling and Simulation of Conventionally Wired Photovoltaic Systems based on Differential Power Processing SubMIC-Enhanced PV Modules," presented at COMPEL'14 IEEE Workshop on Control and Modeling for Power Electronics, 22-26 June 2014, Santander, Spain.
  19. Y. Levron, D. Clement, D. Maksimovic, C. Olalla, "Nonlinear Control Design for the Photovoltaic Isolated-Port Architecture with SubModule Integrated Converters," presented at ECCE'13 Energy Conversion Congress and Exposition, 15-19 September 2013, Denver, Colorado.
  20. C. Olalla, D. Clement, D. Maksimovic, C. Deline, " A Cell-Level Photovoltaic Model for High-Granularity Simulations," presented at EPE'13 ECCE Europe European Conference on Power Electronics and Applications, 3-5 September 2013, Lille, France.
  21. C. Olalla, C. Deline, D. Maksimovic, "Performance of Mismatched PV Systems with Submodule Integrated Converters," presented at PVSC'13 IEEE Photovoltaics Specialist Conference, 16-21 June 2013, Tampa, Florida.
  22. C. Olalla, D. Clement, D. Maksimovic, " A Branch and Bound Algorithm for High-Granularity PV Simulations with Power Limited SubMICs," presented at COMPEL'13 IEEE Workshop on Control and Modeling for Power Electronics, 23-26 September 2013, Salt Lake City, Utah.
  23. R. Haroun, C. Olalla, A. EL Aroudi, A. Cid-Pastor, R. Leyva, L. Martinez-Salamero, "Efficiency Optimization of Cascaded Boost Converters Under Sliding Mode Control," presented at Seminario Anual de Electrónica y Autom ática Industrial (SAAEI'2013), Madrid, Spain - 10-12 July 2013.
  24. C. Olalla, M. Rodriguez, D. Clement, J. Wang, D. Maksimovic, " Architecture and Control of PV Modules with Submodule Integrated Converters," Thirteenth IEEE Workshop on Control and Modeling for Power Electronics, COMPEL'2012, Kyoto, Japan, 2012.
  25. M. Rodriguez, L. Corradini, C. Olalla, D. Maksimovic, " Averaged current-mode control of boost converters with bidirectional power transfer capabilities," Thirteenth IEEE Workshop on Control and Modeling for Power Electronics, COMPEL'2012, Kyoto, Japan, 2012.
  26. Leyva, R., Ingles, J.V., Olalla, C., " LMI control of boost-PWM converters: An implementation approach," IEEE International Symposium on Industrial Electronics, ISIE'2012, pp.377-382, 28-31 May 2012.
  27. C. Olalla, I. Queinnec, R. Leyva, " Robust gain-scheduled control of DC-DC converters: an LMI approach," presented at the IEEE Multi-Systems Conference, MSC'2011, Denver, USA, 28-30 Sept. 2011.
  28. C. E. Carrejo, R. Giral, E. Arango, C. Ramos-Paja, C. Olalla, and C. Alonso, "Fuel cell hybrid topologies selection and control," presented at the IEEE International Conference on Power Engineering, Energy and Electrical Drives, Malaga, Spain, 11-13 May 2011.
  29. C. Olalla, I. Queinnec, R. Leyva and A. El Aroudi, " Robust Control of Bilinear DC-DC Converters," presented at the IEEE International Symposium on Industrial Electronics, ISIE'2010, Bari, Italy, July 4-7, 2010.
  30. E. Gras Marti, C.E. Carrejo González, C. Olalla, E. Vidal Idiarte, B. Estibals, C. Alonso, "Lazo digital de control tensión‐corriente para convertidor Buck," Seminario Anual de Electrónica y Automática Industrial (SAAEI'2010), Bilbao, Spain - 7-9 de Julio de 2010.
  31. C. Olalla, R. Leyva, A. El Aroudi, I. Queinnec, and S. Tarbouriech, " Hinf Control of DC-DC Converters with Saturated Inputs," presented at Proceedings of the IEEE Annual Conference on Industrial Electronics, IECON'09, Porto, November 3-5, 2009.
  32. C. Ramos-Paja, C. Olalla, C. Bordons, A. Romero, R. Leyva, and R. Giral, "Hybrid topologies analysis for fuel cell QFT control design," presented at 15th International Congress of Electrical, Electronic and Systems Engineering, Intercon'08, Trujillo, Peru, August 4-8, 2008.
  33. C. Olalla, R.Leyva, A. El Aroudi, and I. Queinnec, " LMI Control Applied to Non-Minimum Phase Switched Power Converters," presented at IEEE International Symposium on Industrial Electronics (ISIE), Cambridge, UK, June 30 to July 2, 2008.
  34. C. Olalla, R. Leyva, and A. El Aroudi, " Analysis and comparison of extremum seeking control techniques ," in IEEE International Symposium on Industrial Electronics, ISIE'2007,  Vigo, Spain, June 4-7, 2007.
  35. C. Olalla, A. El Aroudi, R. Leyva and I. Queinnec, ",'' " Quantitative feedback contribution to design of voltage regulator modules ," in IEEE International Symposium on Industrial Electronics,  ISIE'2007, Vigo, Spain, June 4-7, 2007.
  36. C. Olalla, R. Leyva, A. El Aroudi, " QFT design for current-mode PWM buck converters operating in continuous and discontinuous conduction modes ," 32nd Annual Conference of the IEEE Industrial Electronics Society (IECON'2006), Paris, France - November 7-10, 2006.
  37. C. Olalla, R. Leyva, A. El Aroudi, "Análisis y diseño de convertidores cc-cc elevadores mediante control QFT," Seminario Anual de Electrónica y Automática Industrial (SAAEI'2006), Gijón, Spain - 13-15 de Septiembre de 2006.
  38. C. Olalla, R. Leyva, A. El Aroudi, "Diseño QFT para convertidores reductores PWM operando en modos de conducción continua y discontinua," Seminario Anual de Electrónica y Automática Industrial (SAAEI'2006), Gijón, Spain - 13-15 de Septiembre de 2006.
  39. C. Olalla, R. Leyva, A. El Aroudi, " QFT control for dc-dc buck converters," IEEE International Symposium on Circuits and Systems (ISCAS'2006), Island of Kos, Greece - May 21-24, 2006.
  40. C. Olalla, M. I. Arteaga, A. El Aroudi, R. Leyva, "Análisis y Comparación de Sistemas de Control de Búsqueda del Extremo," Seminario Anual de Electrónica y Automática Industrial (SAAEI'2005), Santander, Spain - 28-30 de Septiembre de 2005.
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Research Profile

Research Profile

My research is focused on the modeling, control, and optimization of power electronics converters and architectures for many applications, such as renewable energy, lighting, or battery management and charging, to name some.

Projects and Research Activities

  • I am currently carrying out research for the ActivRENergy project, funded by the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) (REA grant agreement #626117), in collaboration with Prof. D. Maksimovic :
    • Distributed power electronics converters for photovoltaic systems increasing the performance and the efficiency of PV installations.
    • Modeling and simulation of PV systems at cell-level.
    • Design of high-energy density power converters for PV systems.
  • I am also interested on the robust control of power converters. Much of my research on this topic has been carried out in collaboration with Prof. I. Queinnec.
    • Analysis and synthesis of controllers for power converters.
    • Development of robust linear controllers and gain-scheduled controllers.
    • Modeling of Nonlinearities, state-dependence, saturation, discretization effects.
  • High-efficiency resonant conversion.
    • We are developing new control methods for resonant converters.
    • Significantly improved regulation and control bandwidth, targeting resonant conversion applications such as lighting and inductive power transfer.
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PVSims

  • PVSims is a MATLAB toolbox for cell-level simulation of PV systems with distributed power electronics.
  • It is intended to investigate the effects of partial shading and other sources of mismatch, and the efficiency of the different power electronics architectures for its mitigation.
  • This toolbox is one of the results of the ActivRENergy project, which was funded by the EU's People Programme under grant agreement #626117.

Downloads

License

PVSims is free of charge to use and is openly distributed, but note that the copyright is owned by Carlos Olalla, Dragan Maksimovic, Chris Deline and Kate Doubleday.

PVSims must be referenced if you use this software in your work. The following three papers cover most of the functionalities of the toolbox:

  • C. Olalla, D. Clement, D. Maksimovic, C. Deline, "A Cell-Level Photovoltaic Model for High-Granularity Simulations," presented at EPE'13 ECCE Europe European Conference on Power Electronics and Applications, 3-5 September 2013, Lille, France.
  • C. Olalla, D. Clement, D. Maksimovic, "A Branch and Bound Algorithm for High-Granularity PV Simulations with Power Limited SubMICs," presented at COMPEL'13 IEEE Workshop on Control and Modeling for Power Electronics, 23-26 September 2013, Salt Lake City, Utah.
  • C. Olalla, C. Deline, D. Clement, Y. Levron, M. Rodriguez, D. Maksimovic, "Performance of Power Limited Differential Power Processing Architectures in Mismatched PV Systems," IEEE Transactions on Power Electronics, Volume 30, no.2, pp.618-631, February 2015.

PVSims, any of its parts, or any derived version may not be redistributed as a part of a commercial product unless agreed with the copyright owners.

The toolbox has been tested carefully before release, but it comes without any warranty.

The toolbox contains a copy of textprogressbar.m by Paul Proteus, available in File Exchange .

Any derived version of the code must include and follow this license.

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Universitat Rovira i Virgili: Courses 2023-2024:

International students are welcome. Master Courses are given in English. Undergraduate courses are given in Catalan.

Links:

Books:

Links to Convex Optimization Toolboxes for MATLAB

  • LMILAB: LMILAB is the solver embedded in the Robust Control Toolbox of Matlab.
  • SEDUMI: SEDUMI is the tool for optimization over symmetric cones currently maintained by Lehigh University.
  • SDPT3: Last version of the semidefinite-quadratic-linear programming toolbox.
  • GPPLAB: GPPLAB is a toolbox for geometric programming written by S. Boyd.
  • CVX: CVX, also written by S. Boyd, is a more up-to-date and well documented convex optimization toolbox.
  • YALMIP: YALMIP is a general parser for optimization problems, compatible with all solvers in this list.

Discretization of linear state-space models in Wikipedia.
Barycentric Coordinates in Wikipedia.

Moodle Tricks


-. Conditional Grading (7/03/2017)
If we have hard limits =if(AND([[hw1]]>3,5; [[hw2]]>3,5; [[hw3]]>3,5; [[exam]]>3,5); ([[hw1]]*15+[[hw2]]*25+[[hw3]]*25+[[exam]]*35+[[seminari]]*5)/100; 0)

Matlab Tricks

This is a compilation of my own notes or documents I found ...

-. Disable warnings (7/03/2017)
Warnings can be disabled by calling 'warning('off', 'WarningId')'.
In order to find out the Id of the last warning you just noticed, use 'warning('query','last')'
-. Dynamic code (29/06/2007)
Sometimes you want to create a code which is very repetitive but you want some changes like indexes or similar, and it can not be done with a 'for' loop.
Note that this is not recommended code practice. See Alternatives to the EVAL() function
This is a very simple example:

for j=1:10
    index=total/j;
    code = [code,'for i=1:',sprintf('%d',index),10];      %10 is the code for new line
    code = [code,'value(i)=',int2str(plant(j)),10];        %sprintf or int2str are used to convert the numbers to strings
    code = [code,'end',10];
end
eval(code);


-. Escape a quotation (29/06/2007) Originally taken from this link

>> eval('disp(''''''This is a string'''''')')
'This is a string'


-. Escape a single quote (29/06/2007)
To escape a single quote in a string (which could be used for 'eval')

Use '' (two simple quotes) to replace the original '
Example:
code_plant=[code_plant,'[P',sprintf('%d',i),',r]=sconnect,(''iload;r'',''Int;G([1])'',''Kt:Int;G([2])'',''G:iload;Kt'',plant(:,:,i),''Int:e=r-G([1])'',sint);',10];


LaTeX Tricks

This is a compilation of my own notes or documents I found ...

-. Unnumbered equations (10/08/2007)

\begin{equation*}
\end{equation*}


B)-. Split equations (10/09/2008)

Usually the best choice to split equations is the 'split' environment. Avoid 'array' whenever possible.
\begin{equation}
\label{whatever}
\begin{split}
x = & a + b + c + d + \\[optional vertical space]
& e + f + g + h.
\end{split}
\end{equation}

-. Unnumbered Part/Chapter/Section/whatever in Table of Contents (21/01/2009)

\chapter*{Chapter Title}

-. PsFrag Replacements with rotation and scale (extracted from here) (21/05/2009)

\psfrag{tag}[position][psposition][scale][rotation]{LaTeX}
PsFragger for Windows.
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Current Graduate Students

  • Ramon Estalella (2018-), Ph.D. Student, Robust Control.
  • Ubaid Ahmad (2021-), Ph.D. Student, Grid-Connected Inverters.

Past PhD Students

  • Nazmul Md. Hasan (2016-2019), Ph.D. Thesis: ''Distributed Power Electronics for Extended Efficiency and Lifetime of Utility-Scale Photovoltaic Systems.''
  • Ricardo Bonache-Samaniego (2014-2017), Ph.D. Thesis: ''Self-oscillating Resonant Converters: General Approach and Applications.''

Past Students

  • Pablo Foubelo (2024), M.Sc. Thesis: ''Test Bench for Characterization of Supercapacitor Devices.''
  • Fernando Garcia (2024), B.Sc. Project: ''Construcción y control PID de un dron cuadricóptero.''
  • Guim Estruch (2024), B.Sc. Project: ''Disseny i Implementació d'una Font d'Alimentació de Laboratori Basada en un Convertidor SEPIC.''
  • Irene Torres (2024), B.Sc. Project: ''Càlcul i Disseny d’un Inversor Fotovoltaic Monofàsic.''
  • Zhen Feng (2024), B.Sc. Project: ''Acondicionamiento del aire aspirado por la purga de filtros de carbón activado.''
  • Xavier Pérez (2024), M.Sc. Thesis: ''Li-ion battery cell emulator based on a buck converter.''
  • Roser Rué (2024), M.Sc. Thesis: ''OBC Safety alarm mechanism: HW alarm to avoid capacitive zone in a LLC converter.''
  • Marià Montoro (2023), M.Sc. Thesis: ''Battery Pack Design and Cell Test for 48 V Electric Vehicle.''
  • Mario Vladut (2023), B.Sc. Project: ''Voltage-mode control of a three-level buck converter operating in discontinuous conduction mode.''
  • Marc Iglesias (2023), B.Sc. Project: ''Especificació i disseny de funció ADAS per integració en vehicle prototip.''
  • Alexis Montes (2022), B.Sc. Project: ''Buck de 3 nivells amb condensador flotant en mode de conducció discontinua.''
  • Jaime Marca (2022), M.Sc. Thesis: ''Design of Interleaved Isolated Boost Converter.''
  • Ruben Casellas (2022), M.Sc. Thesis: ''Abastiment elèctric d’un habitatge rural mitjançant energia renovable.''
  • Marc Tena (2021), M.Sc. Thesis: ''Design of a 2.5kW Bidirectional Dual Active Bridge 800V/48V Converter.''
  • Andrés Arrufat (2021), M.Sc. Thesis: ''Projecte d’una instal·lació fotovoltaica per una explotació porcina.''
  • Adrián Castillo (2021), M.Sc. Thesis: ''Lithium-Ion Battery Modelling and State of Charge Estimation.''
  • Julio Arcos (2020), M.Sc. Thesis: ''Battery, BMS & Electric Drive for an Electrical Bike.''
  • Albert Bolet (2020), M.Sc. Thesis: ''Design of a Lead Acid Battery Charger Based on the LLC Converter.''
  • Marta Quintana (2020), B.Sc. Project: ''Disseny i Control d’un Convertidor Ressonant per Transferència de Potència Sense Fils.''
  • Adrián Ballesteros (2020), B.Sc. Project: ''Convertidor DC-DC amb aïllament galvànic.''
  • Gerard Arnal (2020), M.Sc. Thesis: ''Bateria Dual Li-Ni.''
  • Abel Tarragó (2019), M.Sc. Thesis: ''Sistema Embarcat i Automàtic per a la Mesura de pH i de Concentració d'Ions.''
  • Ramon Estalella (2019), M.Sc. Thesis: ''Tècniques d'Elements Finits per Disseny d'Elements Magnètics en Convertidors de Potència.''
  • Jesús Fuente (2019), B.Sc. Project: ''Interfície d'Entrada i Sortida Basada en FPGA per Control de Convertidors de Potència.''
  • Fernando Favà (2019), B.Sc. Project: ''Interfície LFR amb MPPT per a Panell Fotovoltaic Connectat a una Microxarxa.''
  • Griselda Matamoros (2018), B.Sc. Project: ''DC-DC Resonant Converter for Wireless Power Transfer.''
  • Ezequiel Rodriguez (2017), M.Sc. Thesis: ''Síntesi de Controladors Robusts per Microinversors Basats en el Boost Quadràtic.''
  • Nicolas Patris (2016), M.Sc. Thesis: ''The LLC Converter as DC-DC Transformer.''