Now showing items 1-20 of 23

    • Adaptive voltage control of the DC/DC boost stage in PV converters with small input capacitor 

      Urtasun Erburu, Andoni Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2013)   Artículo / Artikulua  OpenAccess
      In the case of photovoltaic (PV) systems, an adequate PV voltage regulation is fundamental in order to both maximize and limit the power. For this purpose, a large input capacitor has traditionally been used. However, when ...
    • A comprehensive model for lithium-ion batteries: from the physical principles to an electrical model 

      Berrueta Irigoyen, Alberto Upna Orcid; Urtasun Erburu, Andoni Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      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 ...
    • Control design and stability analysis of power converters: the MIMO generalized bode criterion 

      Samanes Pascual, Javier Upna Orcid; Urtasun Erburu, Andoni Upna Orcid; Barrios Rípodas, Ernesto Upna Orcid; Lumbreras Magallón, David Upna Orcid; López Taberna, Jesús Upna Orcid; Gubía Villabona, Eugenio Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      Three-phase dynamic systems and multiphase generators are frequently modeled and controlled in the synchronous reference frame. To properly model the cross-coupling terms in this reference frame, complex vector theory and ...
    • Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation 

      Urtasun Erburu, Andoni Upna Orcid; Samanes Pascual, Javier Upna Orcid; Barrios Rípodas, Ernesto Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      Due to the nonlinear characteristics of a photovoltaic (PV) array, its regulation is highly dependent on the operating point. Focusing on a dc-dc boost converter, this paper first shows how the PV voltage and inductor ...
    • Control of a single-switch two-input buck converter for MPPT of two PV strings 

      Urtasun Erburu, Andoni Upna Orcid; Dah-Chuan Lu, Dylan (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      In this paper, the Two-Input Buck (TIBuck) converter is proposed as the DC/DC stage for photovoltaic (PV) cascaded converters. This converter is attractive for this application because it is cost-effective and reliable and ...
    • DC capacitance reduction in three-phase photovoltaic inverters by using virtual impedance emulation 

      Urtasun Erburu, Andoni Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      DC voltage regulation in grid-connected three-phase PV inverters is a fundamental requirement. In order to reduce the influence of the PV non-linear behavior and ensure stability in the whole operating range, the input ...
    • Dual voltage-current control to provide grid-forming inverters with current limiting capability 

      Erdocia Zabala, Ioseba Upna; Urtasun Erburu, Andoni Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2021)   Artículo / Artikulua
      The rapid uptake of renewable energy sources is causing synchronous generators (SG) to be replaced by power electronic inverters meaning these inverters need to offer the characteristics traditionally associated with SG. ...
    • Dual-mode soft-transition control for single-phase grid-connected photovoltaic inverters 

      Elizondo Martínez, David Upna Orcid; Urtasun Erburu, Andoni Upna Orcid (IEEE, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Single-phase grid-connected inverters for photovoltaic power generation have been strongly analysed for improvement. Dual-mode control for two-stage inverters makes it possible to improve the efficiency by alternating ...
    • Effect of the inner current loop on the voltage regulation for three-phase photovoltaic inverters 

      Urtasun Erburu, Andoni Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In three-phase grid-connected PV inverters, regulating the input voltage is a fundamental requirement. In order to reduce the influence of the PV non-linear behavior and ensure stability in the whole operating range, the ...
    • Energy management strategy for a battery-diesel stand-alone system with distributed PV generation based on grid frequency modulation 

      Urtasun Erburu, Andoni Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Barricarte Rivas, David Upna; Marroyo Palomo, Luis Upna Orcid (Elsevier, 2014)   Artículo / Artikulua  OpenAccess
      A hybrid PV-Battery-Diesel configuration is very attractive for stand-alone systems in terms of cost and reliability. In many applications, the battery and the diesel generator are centralized and generate the AC grid while ...
    • Frequency-based energy management strategy for stand-alone systems with distributed battery storage 

      Urtasun Erburu, Andoni Upna Orcid; Barrios Rípodas, Ernesto Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      Distributed generation is an attractive solution for stand-alone AC supply systems. In such systems, the installation of two or more energy-storage units is recommended for system redundancy and may also be required when ...
    • The generalized bode criterion: application to the dc voltage control of a three-phase photovoltaic grid-tied inverter 

      Lumbreras Magallón, David Upna Orcid; Barrios Rípodas, Ernesto Upna Orcid; Urtasun Erburu, Andoni Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (IEEE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      As renewable energies are becoming more important in the electrical generation system, power electronic converters are facing new design issues related not only to their components but also to their control loops. In this ...
    • High frequency power transformers with foil windings: maximum interleaving and optimal design 

      Barrios Rípodas, Ernesto Upna Orcid; Urtasun Erburu, Andoni Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid; Marroyo Palomo, Luis Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      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 educational activities developed by APERNA: a renewable-energy student association 

      Berrueta Irigoyen, Alberto Upna Orcid; San Martín Biurrun, Idoia Upna Orcid; Samanes Pascual, Javier Upna Orcid; Pascual Miqueleiz, Julio María Upna Orcid; Barrios Rípodas, Ernesto Upna Orcid; Parra Laita, Íñigo de la Upna Orcid; Urtasun Erburu, Andoni Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid (Asociación Española del Hidrógeno, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we present APERNA, a recently-created student association at Public University of Navarre (UPNA) with the aim of promotion of renewable energies.
    • Modeling and control of stand-alone AC microgrids: centralized and distributed storage, energy management and distributed photovoltaic and wind generation 

      Urtasun Erburu, Andoni Upna Orcid (2015)   Tesis doctoral / Doktoretza tesia  OpenAccess
      El aumento de la penetración de energías renovables en la red eléctrica es necesario para el desarrollo de un sistema sostenible. Para hacerlo posible técnicamente, se ha planteado el uso de microrredes, definidas como ...
    • Modeling of small wind turbines based on PMSG with diode bridge for sensorless maximum power tracking 

      Urtasun Erburu, Andoni Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; San Martín Biurrun, Idoia Upna Orcid; López Taberna, Jesús Upna Orcid; Marroyo Palomo, Luis Upna Orcid (Elsevier, 2013)   Artículo / Artikulua  OpenAccess
      The Permanent Magnet Synchronous Generator (PMSG) with diode bridge is frequently used in small Wind Energy Conversion Systems (WECS). This configuration is robust and cheap, and therefore suitable for small WECS. In order ...
    • Modeling the inherent damping of high-power inverters 

      Erdocia Zabala, Ioseba Upna; Urtasun Erburu, Andoni Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In order to decide whether passive or active damping is required in a three-phase inverter, a previous step is to assess the intrinsic damping of the system. However, few works focus on modeling this damping for DC/AC ...
    • On the stability of advanced power electronic converters: the Generalized Bode Criterion 

      Lumbreras Magallón, David Upna Orcid; Barrios Rípodas, Ernesto Upna Orcid; Urtasun Erburu, Andoni Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid; Marroyo Palomo, Luis Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      A key factor in the design of power electronic converters is the development of control systems and, in particular, the determination of their stability. Due to ease of application, the Bode criteria are currently the most ...
    • Parameter-independent control for battery chargers based on virtual impedance emulation 

      Urtasun Erburu, Andoni Upna Orcid; Berrueta Irigoyen, Alberto Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Marroyo Palomo, Luis Upna Orcid (IEEE, 2018)   Artículo / Artikulua  OpenAccess
      An effective battery voltage regulation is fundamental to extend battery lifetime and to avoid overvoltage. However, the design of this regulation is complicated due to the wide battery impedance range, which, when dealing ...
    • Robust multisampled capacitor voltage active damping for grid-connected power converters 

      Samanes Pascual, Javier Upna Orcid; Urtasun Erburu, Andoni Upna Orcid; Gubía Villabona, Eugenio Upna Orcid; Petri, Alberto (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      The derivative feedback of the capacitor voltage is one of the most extended active damping strategies, used to eliminate stability problems in grid-connected power converters with an LCL filter. This strategy is equivalent ...