Now showing items 1-20 of 75

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      2D PIV/PTV–3D uRANS RSM Investigation on the Combined Effect of Iron Filings Filtering Techniques in a Backward Facing Step Flow 

      Villén Ordóñez, Iker; Teso Fernández de Betoño, Daniel ORCID; Martínez Filgueira, Pablo; Fernández Gámiz, Unai; Márquez, Gonzalo; López Guede, José Manuel; Kurt, Erol (Springer, 2023-03)
      The presence of suspended particles in liquid fluids is one of the main reasons for hydraulic system failure. Metallic impurities in particular increase the presence of toxic substances in wastewater; therefore, it is vital ...
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      A method for the sag-tension calculation in electrical overhead lines 

      Albizu Flórez, Igor ORCID; Mazón Sainz-Maza, Angel Javier ORCID; Fernández Herrero, Elvira ORCID (Praise Worthy Prize, 2011-06)
      The sag and tension values of overhead conductors are influenced by the creep developed during the line lifetime. This paper presents a method for the sag-tension calculation of overhead conductors that is characterised ...
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      A New Methodology to Manage FPGA Distributed Memory Content via Bitstream for Xilinx ZYNQ Devices 

      Gómez Cornejo, Julen; Aranzabal Santamaria, Itxaso; López Ropero, Iraide; Mazón Sainz-Maza, Angel Javier ORCID; Zuloaga Izaguirre, Aitzol (MDPI, 2022-12-27)
      This paper proposes a methodology to access data and manage the content of distributed memories in FPGA designs through the configuration bitstream. Thanks to the methods proposed, it is possible to read and write the data ...
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      A Note on the Normalization of Spanish Electricity Spot Prices 

      Díaz, Guzmán; Planas Fullaondo, Estefanía ORCID (IEEE, 2015-07-21)
      Merit order of renewable generation has produced an increasing, relevant number of zero values in Spanish electricity spot prices since 2010, in contrast with the rest of markets which rarely present zero values. This ...
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      A Real-Time Sliding Mode Control for a Wind Energy System Based on a Doubly Fed Induction Generator 

      Barambones Caramazana, Oscar ORCID; Cortajarena Echeverria, José Antonio ORCID; Alkorta Egiguren, Patxi; González de Durana García, José María (MDPI, 2014-10)
      In this paper, a real time sliding mode control scheme for a variable speed wind turbine that incorporates a doubly feed induction generator is described. In this design, the so-called vector control theory is applied, in ...
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      A Study of Learning Issues in Feedforward Neural Networks 

      Teso Fernández de Betoño, Adrián ORCID; Zulueta Guerrero, Ekaitz; Cabezas Olivenza, Mireya; Teso Fernández de Betoño, Daniel ORCID; Fernández Gámiz, Unai (MDPI, 2022-09-05)
      When training a feedforward stochastic gradient descendent trained neural network, there is a possibility of not learning a batch of patterns correctly that causes the network to fail in the predictions in the areas adjacent ...
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      Adaptive Static Line Rating for Systems with HTLS Conductors 

      Albizu Flórez, Igor ORCID; Fernández Herrero, Elvira ORCID; Alberdi Muiño, Rafael ORCID; Bedialauneta Landaribar, Miren Terese ORCID; Mazón Sainz-Maza, Angel Javier ORCID (IEEE, 2018)
      Operation and planning of a power system are constrained by the rating of power lines. Usually, the static line rating is used for system operation and planning. The static line rating defined for an electric grid uses the ...
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      Analysis of Local Measurement-Based Algorithms for Fault Detection in a Multi-Terminal HVDC Grid 

      Pérez Molina, María José; Larruscain Escobal, Dunixe Marene ORCID; Eguía López, Pablo ORCID; Etxegarai Madina, Agurtzane (MDPI, 2019-12-17)
      One of the most important challenges of developing multi-terminal (MT) high voltage direct current (HVDC) grids is the system performance under fault conditions. It must be highlighted that the operating time of the ...
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      Analysis of the Current Electric Battery Models for Electric Vehicle Simulation 

      Saldaña Mulero, Gaizka; San Martín Díaz, José Ignacio ORCID; Zamora Belver, Inmaculada; Asensio De Miguel, Francisco Javier ORCID; Oñederra Leyaristi, Oier ORCID (MDPI, 2019-07-18)
      Electric vehicles (EVs) are a promising technology to reduce emissions, but its development enormously depends on the technology used in batteries. Nowadays, batteries based on lithium-ion (Li-Ion) seems to be the most ...
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      Applications, Operational Architectures and Development of Virtual Power Plants as a Strategy to Facilitate the Integration of Distributed Energy Resources 

      Sarmiento-Vintimilla, Juan C.; Torres Iglesias, Esther; Larruscain Escobal, Dunixe Marene ORCID; Pérez Molina, María José (MDPI, 2022-01-22)
      In this article, we focus on the development and scope of virtual power plants (VPPs) as a strategy to facilitate the integration of distributed energy resources (DERs) in the power system. Firstly, the concepts about VPPs ...
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      Aspects to take into account in the application of mechanical calculation to high temperature low sag conductors 

      Albizu Flórez, Igor ORCID; Mazón Sainz-Maza, Angel Javier ORCID; Valverde Santiago, Víctor ORCID; Buigues Beraza, Garikoitz (The Institution of Engineering and Technology, 2010-05)
      Reconductoring with high temperature low sag (HTLS) conductors is an alternative to the traditional uprating methods. The obtained rating increase depends on the mechanical and thermal behaviour of the conductor. In this ...
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      Assessment of the operational flexibility of virtual power plants to facilitate the integration of distributed energy resources and decision-making under uncertainty 

      Sarmiento-Vintimilla, Juan C.; Larruscain Escobal, Dunixe Marene ORCID; Torres Iglesias, Esther; Abarrategi Ranero, Oihane ORCID (Elsevier, 2024-01)
      Distributed energy resources (DERs) are elements that actively participate in the supply of renewable energy and contribute to the decarbonization of the power system. However, they lack two factors necessary to take ...
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      Cálculo de distancias de seguridad en la repotenciación de líneas de corriente alterna con tecnología HVDC 

      Larruscain Escobal, Dunixe Marene ORCID; Zamora Belver, Inmaculada; Valverde Santiago, Victor; Buigues Beraza, Garikoitz; Abarrategi Ranero, Oihane ORCID; Iturregi Aio, Araitz (Federación de Asociaciones de Ingenieros Industriales, 2016-03-19)
      During the last decades, the combination of several factors (rapid growth of electricity consumption, deregulation of the electricity market and increase of distributed generation) has led to important changes in power ...
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      Circuit Breaker Failure Protection Strategy for HVDC Grids 

      Pérez Molina, María José; Larruscain Escobal, Dunixe Marene ORCID; Eguía López, Pablo ORCID; Abarrategi Ranero, Oihane ORCID (MDPI, 2021-07-18)
      HVDC grids demand the fast and reliable operation of the protection system. The failure of any protection element should initialize a backup protection almost immediately in order to assure the system’s stability. This ...
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      Common-Mode Voltage Elimination in Multilevel Power Inverter-Based Motor Drive Applications 

      Robles Pérez, Endika ORCID; Fernández Zubizarreta, Markel ORCID; Zaragoza, Jordi; Aretxabaleta Astoreka, Iker; Martínez de Alegría Mancisidor, Iñigo ORCID; Andreu Larrañaga, Jon ORCID (IEEE, 2022-01-07)
      [EN] The industry and academia are focusing their efforts on finding more efficient and reliable electrical machines and motor drives. However, many of the motors driven by pulse-width modulated converters face the recurring ...
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      Computational Modeling of a 2D Vanadium Redox Flow Battery Cell 

      Martínez López, Joseba; Aramendia Iradi, Iñigo; Fernández Gámiz, Unai; Sánchez Díez, Eduardo; Beloki, Aitor; Kurt, Erol; López Guede, José Manuel (Springer Nature, 2024-01)
      These days, the implementation of sustainable power generation has led to a difference in propensity in the energy creation and capacity frameworks, compelling them to conquer the hardships that it addresses. Considering ...
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      Contactless Rotor Ground Fault Detection Method for Brushless Synchronous Machines Based on an AC/DC Rotating Current Sensor 

      Pardo-Vicente, Miguel A.; Guerrero Granados, José Manuel ORCID; Platero, Carlos A.; Sánchez-Férnandez, José A. (MDPI, 2023-11-09)
      Brushless synchronous machines (BSMs) are replacing conventional synchronous machines with static excitation in generation facilities due to the absence of sparking and lower maintenance. However, this excitation system ...
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      Current procedures and practices on grid code compliance verification of renewable power generation 

      Etxegarai Madina, Agurtzane; Eguia, Pablo ORCID; Torres Iglesias, Esther; Buigues Beraza, Garikoitz; Iturregi Aio, Araitz (Elsevier, 2017-05)
      Generation assets applying for grid connection must comply with certain grid code requirements. Grid code compliance verification shall include revision of documentation covering technical data and models, checking ...
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      Design and Performance of a XBee 900 MHz Acquisition System Aimed at Industrial Applications 

      Calvo Gordillo, Isidro ORCID; Gil-García Leiva, José Miguel; Villar, Eneko; Fernández, Aitor; Velasco, Javier; Barambones Caramazana, Oscar ORCID; Napole, Cristian; Fernández Bustamante, Pablo (MDPI, 2021-09-03)
      Wireless technologies are being introduced in industrial applications since they provide certain benefits, such as the flexibility to modify the layout of the nodes, improving connectivity with monitoring and decision ...
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      Design of an Anti-Corona Device for HVAC Substation Connectors 

      Larrea Valle, Ane Miren; de la Hoz Lambraño, Manuel Antonio; Etxegarai Madina, Agurtzane; Mazón Sainz-Maza, Angel Javier ORCID; Aranzabal Santamaria, Itxaso (MDPI, 2022-08-09)
      One of the aspects to consider during high-voltage (HV) equipment design is the reduction in the probability of corona effect onset. Indeed, the corona effect is related to high electric field values beyond the equipment’s ...