Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por autor UPNA "Ursúa Rubio, Alfredo"
Mostrando ítems 1-11 de 11
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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 ... -
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 ... -
A comprehensive model for lithium-ion batteries: from the physical principles to an electrical model
Berrueta Irigoyen, Alberto ; Urtasun Erburu, Andoni ; Ursúa Rubio, Alfredo ; Sanchis Gúrpide, Pablo (Elsevier, 2018)
Artículo / Artikulua
The growing interest in e-mobility and the increasing installation of renewable energy-based systems are leading to rapid improvements in lithium-ion batteries. In this context, battery manufacturers and engineers require ... -
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 ... -
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 ... -
High frequency power transformers with foil windings: maximum interleaving and optimal design
Barrios Rípodas, Ernesto ; Urtasun Erburu, Andoni ; Ursúa Rubio, Alfredo ; Marroyo Palomo, Luis ; Sanchis Gúrpide, Pablo (IEEE, 2015)
Artículo / Artikulua
Foil conductors and primary and secondary interleaving are normally used to minimize winding losses in high frequency transformers used for high-current power applications. However, winding interleaving complicates the ... -
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 ... -
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 ... -
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 ... -
Modelling of PEM fuel cell performance: steady-state and dynamic experimental validation
San Martín Biurrun, Idoia ; Ursúa Rubio, Alfredo ; Sanchis Gúrpide, Pablo (MDPI, 2014)
Artículo / Artikulua
This paper reports on the modelling of a commercial 1.2 kW proton exchange membrane fuel cell (PEMFC), based on interrelated electrical and thermal models. The electrical model proposed is based on the integration of the ... -
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 ...
