
- Contact:
- Universitat Rovira i Virgili
Campus Sescelades
Edifici E4, Despatx #344 - Tarragona
- 43007
- carlos.olalla@urv.cat
- Google Scholar
- WoS Researcher ID
- Scopus
Publication List in Google Scholar, WoS Researcher ID and Scopus
Journal Papers
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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, .
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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
- 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
- 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
- D. Maksimovic and C. Olalla, " Balancing, filtering and/or controlling series-connected cells", US Patent App. 13/842,943
Books and Chapters
- 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.
- 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
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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, 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.