• Design of multi-layered radiative cooling structures using evolutionary algorithms 

  Lezaun Capdevila, Carlos; Jorajuría, Tania; Torres García, Alicia E.  ; Herrera, Pilar; Beruete Díaz, Miguel   (IEEE, 2022)   Contribución a congreso / Biltzarrerako ekarpena  

  In this work we present a novel way to design thinfilm radiative cooling metamaterials based on genetic algorithms. Three simulations with different design constraints have been done, resulting in three structures that ...

• Enhancing the infrared and visible emission properties of calcium silicate hydrate for radiative cooling using metamaterials 

  Lezaun Capdevila, Carlos; Dolado, J. S.; Torres García, Alicia E.  ; Pérez Escudero, José Manuel  ; Liberal Olleta, Íñigo  ; Beruete Díaz, Miguel   (IEEE, 2022)   Contribución a congreso / Biltzarrerako ekarpena  

  Two periodic structures composed of metal cylinders with different orientations are used to improve the solar reflection of calcium silicate hydrate (CSH) while maintaining its atmospheric emission. Interesting effects ...

• Comparison of State-of-Charge estimation methods for stationary Lithium-ion batteries 

  Berrueta Irigoyen, Alberto  ; San Martín Biurrun, Idoia  ; Sanchis Gúrpide, Pablo  ; Ursúa Rubio, Alfredo   (IEEE, 2016)   Contribución a congreso / Biltzarrerako ekarpena  

  An accurate monitoring of the State of Charge (SoC) is mandatory for an efficient management of a Lithium-ion battery. Batteries of stationary systems barely have long resting periods when the cumulative errors can be ...

• Electronic controlled device for the analysis and design of photovoltaic systems 

  Sanchis Gúrpide, Pablo  ; López Taberna, Jesús  ; Ursúa Rubio, Alfredo  ; Marroyo Palomo, Luis   (IEEE, 2005)   Artículo / Artikulua  

  The characterization and design of photovoltaic systems is a difficult issue due to the variable operation atmospheric conditions. With this aim, simulators and measurement equipments have been proposed. However, most of ...

• Boost DC-AC inverter: a new control strategy 

  Sanchis Gúrpide, Pablo  ; Ursúa Rubio, Alfredo  ; Gubía Villabona, Eugenio  ; Marroyo Palomo, Luis   (IEEE, 2005)   Artículo / Artikulua  

  Boost dc–ac inverter naturally generates in a single stage an ac voltage whose peak value can be lower or greater than the dc input voltage. The main drawback of this structure deals with its control. Boost inverter ...

• Design methodology for the frequency shift method of islanding prevention and analysis of its detection capability 

  Sanchis Gúrpide, Pablo  ; Marroyo Palomo, Luis  ; Coloma, Javier (Wiley, 2005)   Artículo / Artikulua  

  Islanding protection is one of the most important sources of discrepancy in gridconnected photovoltaic systems. Even when islanding is not very likely to happen, regulations demand the photovoltaic inverters to implement ...

• Electro-thermal modelling of a supercapacitor and experimental validation 

  Berrueta Irigoyen, Alberto  ; San Martín Biurrun, Idoia  ; Hernández, Andoni; Ursúa Rubio, Alfredo  ; Sanchis Gúrpide, Pablo   (Elsevier, 2014)   Artículo / Artikulua  

  This paper reports on the electro-thermal modelling of a Maxwell supercapacitor (SC), model BMOD0083 with a rated capacitance of 83 F and rated voltage of 48 V. One electrical equivalent circuit was used to model the ...

• Methodology for sizing stand-alone hybrid systems: a case study of a traffic control system 

  San Martín Biurrun, Idoia  ; Berrueta Irigoyen, Alberto  ; Sanchis Gúrpide, Pablo  ; Ursúa Rubio, Alfredo   (Elsevier, 2018)   Artículo / Artikulua  

  This paper proposes a methodology for sizing stand-alone hybrid photovoltaic-wind power generation systems. This methodology makes it possible to optimise the overall performance of the stand-alone system components, based ...

• Hydrogen production from water electrolysis: current status and future trends 

  Ursúa Rubio, Alfredo  ; Gandía Pascual, Luis  ; Sanchis Gúrpide, Pablo   (IEEE, 2012)   Artículo / Artikulua  

  This paper reviews water electrolysis technologies for hydrogen production and also surveys the state of the art of water electrolysis integration with renewable energies. First, attention is paid to the thermodynamic and ...

• Analytical design methodology for Litz-wired high-frequency power transformers 

  Barrios Rípodas, Ernesto  ; Ursúa Rubio, Alfredo  ; Marroyo Palomo, Luis  ; Sanchis Gúrpide, Pablo   (IEEE, 2015)   Artículo / Artikulua  

  In the last quarter of a century, high-frequency (HF) transformer design has been one of the major concerns to power electronics designers in order to increase converter power densities and efficiencies. Conventional design ...

• Influence of the power supply on the energy efficiency of an alkaline water electrolyser 

  Ursúa Rubio, Alfredo  ; Marroyo Palomo, Luis  ; Gubía Villabona, Eugenio  ; Gandía Pascual, Luis  ; Diéguez Elizondo, Pedro  ; Sanchis Gúrpide, Pablo   (Elsevier, 2009)   Artículo / Artikulua  

  Electric energy consumption represents the greatest part of the cost of the hydrogen produced by water electrolysis. An effort is being carried out to reduce this electric consumption and improve the global efficiency ...

• On the testing, characterization, and evaluation of PV inverters and dynamic MPPT performance under real varying operating conditions 

  Sanchis Gúrpide, Pablo  ; López Taberna, Jesús  ; Ursúa Rubio, Alfredo  ; Gubía Villabona, Eugenio  ; Marroyo Palomo, Luis   (Wiley, 2007)   Artículo / Artikulua  

  The increasing number of photovoltaic inverters that are coming on to the PV marketstresses the need to carry out a dynamic characterization of these elements and theirmaximum power point tracking (MPPT) algorithms under ...

• Ultrahigh sensitive detection of tau protein as Alzheimer's biomarker via microfluidics and nanofunctionalized optical fiber sensors 

  Chiavaioli, Francesco; Santano, Desiree  ; Del Villar, Ignacio  ; Socorro Leránoz, Abián Bentor  ; Zhang, Xuejun; Li, Kaiwei; Santamaría Martínez, Enrique; Fernández Irigoyen, Joaquín  ; Baldini, Francesco; Van den Hove, Daniel L. A.; Shi, Lei; Bi, Wei; Guo, Tuan; Giannetti, Ambra; Matías Maestro, Ignacio   (Wiley, 2022)   Artículo / Artikulua  

  Alzheimer’s disease (AD) is one of the most common neurodegenerative illnesses displaying the highest death rate in the elderly. However, the existing AD diagnostic system remains elusive due to lack of a technology that ...

• Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency 

  Bittencourt, V.A.S.V.; Liberal Olleta, Íñigo  ; Viola Kusminskiy, Silvia (American Physical Society, 2022)   Artículo / Artikulua  

  Reaching strong light-matter coupling in solid-state systems has long been pursued for the implementation of scalable quantum devices. Here, we put forward a system based on a magnetized epsilon-near-zero (ENZ) medium, and ...

• Control strategy for an integrated photovoltaic-battery system 

  Urtasun Erburu, Andoni  ; Sanchis Gúrpide, Pablo  ; Marroyo Palomo, Luis   (IEEE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  

  In photovoltaic-battery systems, more attention is usually paid to the MPPT control while the battery management is put aside. This paper proposes two control strategies for an integrated PV-battery system, both of them ...

• Comparison of linear and and small-signal models for inverter-based microgrids 

  Urtasun Erburu, Andoni  ; Sanchis Gúrpide, Pablo  ; Marroyo Palomo, Luis   (IEEE, 2014)   Contribución a congreso / Biltzarrerako ekarpena  

  Frequency and voltage regulation in droop-based microgrids is generally modeled using small-signal analysis. In order to ensure accuracy, existing models do not decouple real and reactive power responses. However, the ...

• On the stability criteria for inverter current control loops with LCL output filters and varying grid impedance 

  Lumbreras Magallón, David  ; Barrios Rípodas, Ernesto  ; Ursúa Rubio, Alfredo  ; Marroyo Palomo, Luis  ; Sanchis Gúrpide, Pablo   (IEEE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  

  The use of LC and LCL filters and grid impedance variations are creating new challenges on the controller design for current control loops of photovoltaic and wind turbine inverters. In the design process, stability criteria ...

• Lithium-ion battery model and experimental validation 

  Berrueta Irigoyen, Alberto  ; Irigaray, Víctor; Sanchis Gúrpide, Pablo  ; Ursúa Rubio, Alfredo   (2015)   Contribución a congreso / Biltzarrerako ekarpena  

  A simple battery model is useful for: Sizing of the storage system for a particular application; Designing other elements connected to the battery; Managing the storage system operation. This poster consists on: Tests to ...

• Hydrogen-lithium energy storage for a stand-alone microgrid 

  Berrueta Irigoyen, Alberto  ; San Martín Biurrun, Idoia  ; Sanchis Gúrpide, Pablo  ; Ursúa Rubio, Alfredo   (2016)   Contribución a congreso / Biltzarrerako ekarpena  

  Sizing of the storage system for a stand-alone application: Satisfaction of technical requirements; Based on real data from an experimental microgrid; Long lifetime; Lowest price

• Compensation of forecast error in large PV plants with battery storage: associated strategies 

  Marcos Álvarez, Javier  ; Parra Laita, Íñigo de la  ; Muñoz Escribano, Mikel ; García Solano, Miguel  ; Marroyo Palomo, Luis   (2017)   Contribución a congreso / Biltzarrerako ekarpena  

  As penetration rates of utility-scale photovoltaics (PV) increases, large PV plants will participate in the daily wholesale electricity market in the same way that wind farms. Then, PV plant owner can receive some kind of ...

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