BackExaminar Artículos por departamento (eus.) "Ingeniaritza elektrikoa"
Now showing items 21-40 of 77
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Design of an Anti-Corona Device for HVAC Substation Connectors
; ; ; Mazón Sainz-Maza, Angel Javier
; (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 ... -
Double Fed Induction Generator Control Design Based on a Fuzzy Logic Controller for an Oscillating Water Column System
Napole, Cristian; Barambones Caramazana, Oscar; Derbeli, Mohamed; Cortajarena Echeverria, José Antonio ; Calvo Gordillo, Isidro ; ; Fernández Bustamante, Pablo (MDPI, 2021-06-12)
Oscillating water column (OWC) systems are water power generation plants that transform wave kinetic energy into electrical energy by a surrounded air column in a chamber that changes its pressure through the waves motion. ... -
Electric Arc in Low-Voltage Circuit Breakers: Experiments and Simulation
(IEEE, 2017-01)The aim of this paper is to present a further approach for analyzing the air electric arc in low-voltage circuit breakers (LVCBs). In order to achieve that, a new simulation model and experimental tests have been carried ... -
Electric Vehicle into the Grid: Charging Methodologies Aimed at Providing Ancillary Services Considering Battery Degradation
; San Martín Díaz, José Ignacio; ; Asensio De Miguel, Francisco Javier ; Oñederra Leyaristi, Oier (MDPI, 2019-06-25)
The necessity of transport electrification is already undeniable due to, among other facts, global Greenhouse Gas (GHG) emissions and fossil-fuel dependency. In this context, electric vehicles (EVs) play a fundamental role. ... -
Empirical calendar ageing model for electric vehicles and energy storage systems batteries
; San Martín Díaz, José Ignacio; ; Asensio De Miguel, Francisco Javier ; Oñederra Leyaristi, Oier ; (Elsevier, 2022-11)
Transport electrification and energy storage are considered part of the solution to decrease CO2 emissions from the energy and transport sectors. In this context, batteries can be a promising technology, since advances in ... -
Energy storage sizing for virtual inertia contribution based on ROCOF and local frequency dynamics
(Elsevier, 2023-05)Large integration of renewable energy sources has caused a dramatic reduction of inertia in modern power grids. Which has caused the development of virtual inertia techniques facilitating support from power electronic ... -
Engineering instructor perception of Problem and Project Based Learning: Learning, success factors and difficulties
Garmendia Mujika, Mikel; Aginako Arri, Zaloa ; ; (OmniaScience, 2021)
This work considers three research objectives: to analyze the perception of instructors of the incidence ofPBL/PjBL on content learning and skill development; to identify the success factors that they believepromote learning ... -
European Cities in the Energy Transition: A Preliminary Analysis of 27 Cities
Villamor Lomas, Estitxu; ; ; Urkidi Azkarraga, Leire ; Campos Celador, Alvaro ; ; (MDPI, 2020-03-12)
Nowadays, there is a wide scientific consensus about the unsustainability of the current energy system and at the same time, social awareness about climate change and the IPCC’s goals is increasing in Europe. Amongst ... -
Field validation of gap-type overhead conductor creep
Fernández Herrero, Elvira; Albizu Flórez, Igor ; Bedialauneta Landaribar, Miren Terese ; ; (Elsevier, 2018-09-11)
Gap-type overhead conductor sag-tension calculations based on experimental conductor creep tests are based on stress-strain and metallurgical creep tests. Although for bi-metallic conductors, these tests are carried out ... -
Flexible Strain-Tension Calculation Method for Gap-type Overhead Conductors
Albizu Flórez, Igor; Mazón Sainz-Maza, Angel Javier ; (IEEE, 2009-07)
Commercially available sag-tension programs give good results for most practical applications. However, they have some limitations concerning gap-type conductors. A separate aluminum and core creep calculation is needed ... -
Forecast Ratio and Security Analysis of Rating Forecasting Methods in an Overhead Line
Albizu Flórez, Igor; Fernández Herrero, Elvira ; Mazón Sainz-Maza, Angel Javier ; Alberdi Muiño, Rafael (The Institution of Engineering and Technology, 2017-01-26)
The actual line rating in overhead lines varies with weather conditions. When a utility defines a rating value for the operation of the line, it takes into account both the security and the forecast ratio. The defined ... -
Fuel cell-based CHP system modelling using Artificial Neural Networks aimed at developing techno-economic efficiency maximization control systems
Asensio De Miguel, Francisco Javier; San Martín Díaz, José Ignacio ; ; (Elsevier, 2017-02-08)
This paper focuses on the modelling of the performance of a Polymer Electrolyte Membrane Fuel Cell (PEMFC)-based cogeneration system to integrate it in hybrid and/or connected to grid systems and enable the optimization ... -
Gain Scheduling Control of an Islanded Microgrid Voltage
Camblong Ruiz, Aritza; ; Ugartemendia de la Iglesia, Juan José ; (MDPI, 2014-07)
The aim of this research study has been to design a gain scheduling (GS) digital controller in order to control the voltage of an islanded microgrid in the presence of fast varying loads (FVLs), and to compare it to a ... -
Graph-Based methodology for Multi-Scale generation of energy analysis models from IFC
; Elguezabal Esnarrizaga, Peru; (Elsevier, 2023-03)
Process digitalisation and automation is unstoppable in all industries, including construction. However, its widespread adoption, even for non-experts, demands easy-to-use tools that reduce technical requirements. BIM to ... -
Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel
Jimbert Lacha, Pedro José; ; ; Fernández Martínez, Roberto (MDPI, 2018-12)
The effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in ... -
Influence of the conductor temperature error on the overhead line ampacity monitoring systems
Albizu Flórez, Igor; Fernández Herrero, Elvira ; Mazón Sainz-Maza, Angel Javier ; Bengoechea Aresti, Janire (The Institution of Engineering and Technology, 2011-04)
Many real time overhead line ampacity monitoring systems are based on the calculation of the wind speed. The wind speed is obtained from the conductor temperature. The conductor temperature can be measured directly or it ... -
Joint cost of energy under an optimal economic policy of hybrid power systems subject to uncertainty
; Planas Fullaondo, Estefanía; Andreu Larrañaga, Jon ; Kortabarria Iparragirre, Iñigo (Elsevier, 2015-08-01)
Economical optimization of hybrid systems is usually performed by means of LCoE (levelized cost of energy) calculation. Previous works deal with the LCoE calculation of the whole hybrid system disregarding an important ... -
Maximum Power Point Tracking Techniques for Photovoltaic Panel: A Review and Experimental Applications
Derbeli, Mohamed; Napole, Cristian; Barambones Caramazana, Oscar; Sánchez Etchegaray, Jesús María; Calvo Gordillo, Isidro ; Fernández Bustamante, Pablo (MDPI, 2021-11-22)
This article contains a review of essential control techniques for maximum power point tracking (MPPT) to be applied in photovoltaic (PV) panel systems. These devices are distinguished by their capability to transform solar ... -
Methodology for Tuning MTDC Supervisory and Frequency-Response Control Systems at Terminal Level under Over-Frequency Events
Haro Larrode, Marta; Santos Mugica, Maider; ; Eguía López, Pablo (MDPI, 2020-06-01)
This paper proposes a methodology for tuning a supervisory and frequency-response outer loop control system of a multi-terminal direct current (MTDC) grid designed to transmit offshore wind energy to an onshore AC grid, ... -
Microtab design and implementation on a 5MW wind turbine
; ; Boyano Murillo, Ana Isabel; ; (MDPI, 2017-05-24)
Microtabs (MT) consist of a small tab placed on the airfoil surface close to the trailing edge and perpendicular to the surface. A study to find the optimal position to improve airfoil aerodynamic performance is presented. ...