Browsing by Author "Rolán Blanco, Alejandro"
Now showing items 1-20 of 36
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A 5LCHB Inverter for PV transformerless applications with reduced leakage ground current
(Institute of Electrical and Electronics Engineers (IEEE), 2022-11-04)
Article
Open AccessTransformerless inverters for photovoltaic systems are widely used as it features low cost, volume, and weight. Thus, in recent years, its study has been of great interest to the research community. In this paper a ... -
A parametric approach for the study of three-phase inverters subject to grid faults
(2022)
Conference lecture
Open AccessThe aim of this work is to describe the behavior of three-phase inverters connected to a faulty grid by means of a parametric approach which gives rise to limaçon of Pascal curves and 3D figures formed by the injected ... -
A survey and evaluation of the potentials of distributed ledger technology for peer-to-peer transactive energy exchanges in local energy markets
(2019-09)
Article
Open AccessTheunpredictability and intermittency introduced by Renewable Energy Sources (RESs) in power systems may lead to unforeseen peaks of energy production, which might differ from energy demand. To manage these mismatches, a ... -
An approach to the performance-oriented model of variable-speed wind turbines
(IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
Conference lecture
Open AccessThe aim of this work is to give an approach to the Performance-Oriented Model of Variable-Speed Wind turbines (VSWTs) equipped with permanent magnet synchronous generator (PMSG), and compare it to the component-oriented model. ... -
Analysis of the performance of MMC under fault conditions in HVDC-based off-shore wind farms
(Institute of Electrical and Electronics Engineers (IEEE), 2016-04)
Article
Open AccessThis paper analyzes the behavior of a modular multilevel converter-high-voltage direct-current (MMC HVDC)-connected offshore wind power plant (WPP) during dc faults. For that purpose, detailed models of the dc cable, MMC ... -
Behavior of the three-phase induction motor with spiral sheet rotor
(2009-03)
Article
Open AccessImprovements in torque at low currents using a rotor with spiral sheets are analyzed. Several rotors and stators have been built combining different constructive and mechanical characteristics of the related elements: ... -
Behavior of three-phase inverters under grid faults explained from a geometric perspective
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThe aim of this work is to analyze the dynamic behavior of inverters powered by renewable energy sources (RES) operating under grid faults by means of a geometric point of view. To this purpose, a three-phase grid-connected ... -
Behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags
(2012-09)
Article
Restricted access - publisher's policyThis study analyses the dynamic behaviour of the doubly fed induction generator exposed to unsymmetrical voltage sags, providing insights into wind turbine fault ride-through capability. The sags are assumed to be caused ... -
Control strategies for DFIG wind turbines under grid fault conditions
(2009)
Conference lecture
Open AccessThe classical control techniques for regulating the active and reactive power delivery in doubly fed induction generators (DFIG), for wind power applications, are normally based on voltage oriented control (VOC) strategies. ... -
Desenvolupament de recursos per a la creació i gestio de material docent orientat a l’aprenentatge actiu que faciliti l’adaptació d’assignatures tècniques a l’EEES i la seva aplicació a l’ensenyament de circuits elèctrics
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-06-04)
Conference lecture
Open AccessL'autoaprenentatge i l’autoavaluació d’assignatures tècniques requereixen eines de càlcul que no estan disponibles dintre del campus virtual ATENEA, per aquest motiu s’ha incorporat al campus virtual de la UPC el software ... -
Desenvolupament de recursos per a la creació i gestió de material docent orientat a l’aprenentatge actiu que faciliti l’adaptació d’assignatures tècniques a l'EEES i la seva aplicació a l’ensenyament de circuits elèctrics
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-02-11)
Conference lecture / Conference report
Open AccessL'autoaprenentatge i l’autoavaluació d’assignatures tècniques requereixen eines de càlcul que no estan disponibles dintre del campus virtual ATENEA, per aquest motiu s’ha incorporat al campus virtual de la UPC el software ... -
Detailed study of DFIG-based wind turbines to overcome the most severe grid faults
(2014-11-01)
Article
Restricted access - publisher's policyThis paper studies the effects of voltage sags caused by faults on doubly-fed induction generators to overcome grid faults. A wide range of sag duration and depth values is considered. It is observed that sag duration ... -
Distributed cooperative control for stepper motors synchronization
(2018)
Conference report
Open AccessThis paper describes the design and simulation of a distributed cooperative control algorithm based on multi-agents to synchronize a group of stepper motors. Modeling of the two-phase hybrid stepper motor in closed loop ... -
Doubly fed induction generator subject to symmetrical voltage sags
(2011-12)
Article
Restricted access - publisher's policyThe aim of this paper is to analyze the dynamic behavior of the doubly fed induction generator (DFIG) subject to symmetrical voltage sags caused by three-phase faults. A simple control algorithm is considered and assumed ... -
Doubly fed induction generator-based variable-speed wind turbine: proposal of a simplified model under a faulty grid with short-duration faults
(2019-08)
Article
Open AccessThe aim of this study is to provide a simplified model of a variable-speed wind turbine (VSWT) with the technology of a doubly-fed induction generator (DFIG) which operates under faulty grid conditions. A simplified model ... -
Estudio del efecto de los huecos de tensión en el generador de inducción doblemente alimentado
(Universitat Politècnica de Catalunya, 2012-02-17)
Doctoral thesis
Open AccessThe aim of this doctoral thesis is to analyse the dynamic behaviour of the doubly-fed induction generator exposed to voltage sags. This electrical machine is mainly used in variable-speed wind turbines. Due to the noticeable ... -
Fault diagnosis and prognosis of a brushless dc motor using a model-based approach
(2020)
Conference lecture
Open AccessThis paper proposes a model-based fault diagnosis and prognosis approach applied to brushless DC motors (BLDC). The objective is an early detection of mechanical and electrical faults in BLDC motors operating under a variety ... -
Initialization of DFIG wind turbines with a phasor-based approach
(2019-03)
Article
Open AccessThe objective of this paper is to propose a simple approach to solve the steady state of a wind turbine (WT) equipped with a doubly-fed induction generator (DFIG) which can be used to initialize dynamic studies of the ... -
Integration of cold ironing and renewable sources in the Barcelona smart port
(2019-11)
Article
Open AccessCold ironing, which is the procedure of supplying shoreside electrical power to a ship at berth when its engines are turned off, arises as the eco-friendly way to deliver power to ships while they are berthed in ports, ... -
Integration of Distributed Energy Resources to Unbalanced Grids under Voltage Sags with Grid Code Compliance
(2022-01-01)
Article
Restricted access - publisher's policyThe aim of this paper is to analyze the situations in which distributed power generation systems (DPGSs) based on renewable energy sources (RESs) can be controlled when operating under voltage sags. Analytical models for ...
