Exploració per autor "Romeral Martínez, José Luis"
Ara es mostren els items 37-56 de 201
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Analysis of power converters with devices of SiC for applications in electric traction systems
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés obertThis article presents the analysis of two topologies of power converters. Voltage Source Inverter (VSI) and Current Source Inverter (CSI) proposals for traction system applications, these topologies are implemented with ... -
Análisis eléctrico del altavoz dinámico mediante modelado de anomalías mecánicas de fricción
(2010)
Text en actes de congrés
Accés obertEl presente trabajo busca caracterizar el efecto de la fricción del conjunto móvil con el polo o el núcleo de la estructura magnética sobre la corriente absorbida por el altavoz, una de las más relevantes anomalías mecánicas ... -
Application of the zero-sequence voltage component to detect stator winding inter-turn faults in PMSMs
(2012-08)
Article
Accés restringit per política de l'editorialThis paper develops and analyzes a methodology for detecting stator winding inter-turn faults in surface-mounted permanent magnet synchronous motors. The proposed methodology is based on monitoring the zero-sequence voltage ... -
Automatic model calibration for coupled HVAC and building dynamics using Modelica and Bayesian optimization
(Elsevier, 2022-12)
Article
Accés restringit per política de l'editorialIn recent years, increasing the energy efficiency of the building has become one of the objectives of facility managers. In this sense, monitoring-based commissioning and automated fault detection have demonstrated to be ... -
Autonomous energy management system with self-healing capabilities for green buildings (Microgrids)
(Elsevier, 2021-02)
Article
Accés obertNowadays, distributed energy resources are widely used to supply demand in micro grids specially in green buildings. These resources are usually connected by using power electronic converters, which act as actuators, to ... -
Bases de datos: Introducción y caso de aplicación
(2023-10-27)
Audiovisual
Accés obert -
Bearings fault detection using inference tools
(In-Tech, 2011-09)
Capítol de llibre
Accés obertThe most used electric machine in the industry is the Induction Motor (IM), due to its simplicity and reduced cost. The analysis of the origin of IMs failures exhibits that the bearings are the major source of fault, and ... -
Clamping diode caused distortion in multilevel NPC Full-Bridge audio power amplifiers
(2012)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents a study and analysis of the distorting effects of clamped diodes in multilevel DCI-NPC topology applied to high power and high quality audio-amplifier. The main distorting sources of error are characterized, ... -
Closed-loop controller for eliminating the contact bounce in DC core contactors
(2010-09)
Article
Accés obertThe undesirable phenomenon of the contact bounce causes severe erosion of the contacts and, as a consequence, their electrical life and reliability are greatly reduced. On the other hand, the bounce of the armature can ... -
Common-mode voltage mitigation strategies using sigma-delta modulation in five-phase VSIs
(Institute of Electrical and Electronics Engineers (IEEE), 2022-10)
Article
Accés obertVarious sigma–delta ( S ¿ ) modulation techniques for reducing the maximum peak-to-peak amplitude of common-mode voltage (CMV) by 80% in a five-phase, high-frequency voltage source inverter (VSI) are proposed and evaluated ... -
Comparative analysis of SVM techniques for a five-phase VSI based on SiC devices
(2020-12-14)
Article
Accés obertMultiphase systems provides benefits compared to three-phase systems, such as improved torque per ampere, high power density, better fault tolerance, lower current per phase (due to power-splitting among a higher number ... -
Computationally efficient design and optimization approach of PMa-SynRM in frequent operating torque-speed range
(2018-04-30)
Article
Accés restringit per política de l'editorialThis paper proposes a design process of permanent magnet assisted synchronous reluctance motors (PMa-SynRM) intended for vehicular propulsion. This approach takes into account range optimization and a multiphysics evaluation ... -
Condition monitoring system for characterization of electric motor ball bearings with distributed fault using fuzzy inference tools
(2010-05-06)
Article
Accés obertThe present work shows a condition monitoring system applied to electric motors ball bearings. Unlike most of the previous work on this area, which is mainly focused on the location of single-point defects in bearing ... -
Constant common-mode voltage strategies using sigma-delta modulators in five-phase VSI
(Institute of Electrical and Electronics Engineers (IEEE), 2023-03)
Article
Accés obertThis paper proposes and studies different sigma-delta () modulation strategies for obtaining a constant common-mode voltage (CMV) by eliminating the CMV level transitions in a five-phase voltage source inverter (VSI). These ... -
Constrained-size torque maximization in SynRM machines by means of genetic algorithms
(2015)
Text en actes de congrés
Accés restringit per política de l'editorialSynchronous Reluctance Motors have always been an alternative to more mainstream machines such as the Permanent Magnet Synchronous Motor, but until recently they have not found their right place in industrial applications. ... -
Control and modulation techniques applied to converters with impedances networks for traction systems
(2017-01-20)
Article
Accés obertThe development of different topologies of power converters with impedance networks have opened up new lines of research, its application in different areas such as transmission systems, high voltage, photovoltaic ... -
Control method of impedance network in SiC power converters for HEV/EV
(Las Palmas : European Association of the Development of Renewable Energy, Environment and Power Quality, 2017)
Text en actes de congrés
Accés obertSilicon carbide (SiC) devices provide significant performance improvements in many aspects, including lower power dissipation, higher operating temperatures, and faster switching, compared to ... -
Curso práctico de microprocesadores con metodología semipresencial
(Universitat Politècnica de Catalunya, 2004)
Text en actes de congrés
Accés obertEl objetivo final de esta experiencia es mejorar la docencia impartida por el Departamento de Ingeniería Electrónica en el Campus de Terrassa de la UPC en el área de microprocesadores. La mejora tiene dos ejes fundamentales, ... -
Defect reconstruction by non-destructive testing with laser induced ultrasonic detection
(2020-02)
Article
Accés obertThis work envisages a detailed study of two-dimensional defect localization and reconstruction, using laser generated ultrasound and its application as a remotely controlled non-destructive testing method. As an alternative ... -
Demagnetization diagnosis in permanent magnet synchronous motors under non-stationary speed conditions
(2010-10)
Article
Accés restringit per política de l'editorialPermanent magnet synchronous motors (PMSMs) are applied in high performance positioning and variable speed applications because of their enhanced features with respect to other AC motor types. Fault detection and diagnosis ...
