Exploració per autor "Romeral Martínez, José Luis"Més informacióMés informació

Ara es mostren els items 135-154 de 201

    • Neutral-point oscillation control based on a new audio space vector modulation (A-SVM) for DCI-NPC power amplifiers 

      Sala Caselles, Vicenç; Romeral Martínez, José Luis; Ruiz Illana, Germán (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work, the oscillation or flotation in the DC-BUS neutral point in the DCI-NPC (Diode Clamped Inverter–Neutral Point Clamped) amplifiers is presented as one of the most important distortion sources. This perturbation ...

    • New mathematical model of an inverter-based generator for stability studies of microgrid Systems 

      Andrade Rengifo, Fabio; Romeral Martínez, José Luis; Kampouropoulos, Konstantinos; Cusidó Roura, Jordi (2013)
      Text en actes de congrés
      Accés obert
      A new mathematical model of a renewable generator, with a DC-AC interface, based on the concept of electrostatic machine is presented. This new model has a direct relationship between the DC and AC side. Moreover, it can ...

    • New model of a converter-based generator using electrostatic synchronous machine concept 

      Andrade Rengifo, Fabio; Romeral Martínez, José Luis; Cusidó Roura, Jordi; Cárdenas Araújo, Juan José (2014-06-01)
      Article
      Accés restringit per política de l'editorial
      In this paper, a new method for modeling converter-based power generators in ac-distributed systems is proposed. It is based on the concept of electrostatic synchronous machines. With this new concept, it is possible to ...

    • New modulation strategy for five-phase high-frequency VSI based on sigma–delta modulators 

      Acosta Cambranis, Fernando Geovany; Zaragoza Bertomeu, Jordi; Romeral Martínez, José Luis; Berbel Artal, Néstor (Institute of Electrical and Electronics Engineers (IEEE), 2021-10-20)
      Article
      Accés obert
      This article proposes a new modulation strategy for a five-phase high-frequency voltage source inverter (VSI) based on sigma–delta ( S¿ ) modulators. This modulation strategy of five-phase large–medium-zero vectors S¿ ...

    • New strategy to minimize dead-time distortion in DCI-NPC power amplifiers using COE-error injection 

      Resano, Tomas; Sala Caselles, Vicenç; Romeral Martínez, José Luis; Moreno Eguilaz, Juan Manuel (Curran, 2013)
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      Accés restringit per política de l'editorial
      The DCI-NPC topology has become one of the best options to optimize energy efficiency in the world of high power and high quality amplifiers. This can use an analog PWM modulator that is sensitive to generate distortion ...

    • Node-RED: Acceso y partes de la interfaz 

      Romeral Martínez, José Luis; Delgado Prieto, Miquel; Ramírez Chávez, Mayra; Arellano Espitia, Francisco; Ustrell Castellet, Marc; Valls Pérez, Joan (2023-10-20)
      Audiovisual
      Accés obert

    • Node-RED: Configuración del flujo de datos 

      Romeral Martínez, José Luis; Delgado Prieto, Miquel; Ramírez Chávez, Mayra; Arellano Espitia, Francisco; Ustrell Castellet, Marc; Valls Pérez, Joan (2023-10-27)
      Audiovisual
      Accés obert

    • Node-RED: Creación de flows PDI 

      Romeral Martínez, José Luis; Delgado Prieto, Miquel; Ramírez Chávez, Mayra; Arellano Espitia, Francisco; Ustrell Castellet, Marc; Valls Pérez, Joan (2023-10-20)
      Audiovisual
      Accés obert

    • Node-RED: Edición de nodos PDI 

      Romeral Martínez, José Luis; Delgado Prieto, Miquel; Ramírez Chávez, Mayra; Arellano Espitia, Francisco; Ustrell Castellet, Marc; Valls Pérez, Joan (2023-10-20)
      Audiovisual
      Accés obert

    • Node-RED: Importación y exportación de flows PDI 

      Romeral Martínez, José Luis; Delgado Prieto, Miquel; Ramírez Chávez, Mayra; Arellano Espitia, Francisco; Ustrell Castellet, Marc; Valls Pérez, Joan (2023-10-20)
      Audiovisual
      Accés obert

    • Node-RED: Verificación del flujo de datos 

      Romeral Martínez, José Luis; Delgado Prieto, Miquel; Ramírez Chávez, Mayra; Arellano Espitia, Francisco; Ustrell Castellet, Marc; Valls Pérez, Joan (2023-10-27)
      Audiovisual
      Accés obert

    • Novelty detection based condition monitoring scheme applied to electromechanical systems 

      Delgado Prieto, Miquel; Cariño Corrales, Jesús Adolfo; Saucedo Dorantes, Juan Jose; Osornio Rios, Roque A.; Romeral Martínez, José Luis; Romero Troncoso, René (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
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      This study is focused on the current challenges dealing with electromechanical system monitoring applied in industrial frameworks, that is, the presence of unknown events and the limitation to the nominal healthy condition ...

    • Observer-based open transistor fault diagnosis and fault-tolerant control of five-phase permanent magnet motor drive for application in electric vehicles 

      Salehifar, Mehdi; Salehi Arashloo Arashloo, Ramin; Moreno Eguilaz, Juan Manuel; Sala Caselles, Vicenç; Romeral Martínez, José Luis (2015-01-01)
      Article
      Accés obert
      To meet increasing demand for higher reliability in power electronics converters applicable in electric vehicles, fault detection (FD) is an important part of the control algorithm. In this study, a model-based open ...

    • On the effect of accessible neutral point in fault tolerant five phase PMSM drives 

      Salehi Arashloo Arashloo, Ramin; Salehifar, Mehdi; Romeral Martínez, José Luis (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This study deals with the fault tolerant vector control strategies of a five-phase permanent-magnet (PM) machine. The analysis is focused on the effect of accessible neutral point under faulty con ...

    • On-line fault detection method for induction machines based on signal convolution 

      Cusidó Roura, Jordi; Romeral Martínez, José Luis; García Espinosa, Antonio; Ortega Redondo, Juan Antonio; Riba Ruiz, Jordi-Roger (2010-06-28)
      Article
      Accés obert
      A new technique for induction motor fault detection and diagnosis is presented. This technique, which has been experimentally verified in stationary and non-stationary motor conditions, is based on the convolution of ...

    • Optimal control of energy hub systems by use of SQP algorithm and energy prediction 

      Kampouropoulos, Konstantinos; Sala Cardoso, Enric; Andrade, Fabio; Romeral Martínez, José Luis (2014)
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      This paper presents an energy optimization methodology applied on industrial plants with multiple energy carriers. The methodology combines an adaptive neuro-fuzzy inference system to calculate the short-term load forecasting ...

    • Optimal design of a three-phase AFPM for in-wheel electrical traction 

      Saavedra Ordóñez, Harold; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2014)
      Comunicació de congrés
      Accés obert
      Sinusoidally fed permanent magnet synchronous motors (PMSM) fulfill the special features required for traction motors to be applied in electric vehicles (EV). Among them, axial flux permanent magnet (AFPM) synchronous ...

    • Optimization of industrial plants for exploiting energy assets and energy trading 

      Urbano González, Eva María; Martínez Viol, Víctor; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The worldwide energy market is undergoing a transition that will lead to a greener and non-fossil fuel dependent situation in which demand side management and prosumers will play a key role. The digitalization of energetic ...

    • Performance analysis of acoustic emission hit detection methods using time features 

      Piñal Moctezuma, Juan Fernando; Delgado Prieto, Miquel; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2019-05-27)
      Article
      Accés obert
      Acoustic emission (AE) analysis is a powerful potential characterisation method forfracture mechanism analysis during metallic specimen testing. Nevertheless, identifying and extracting each event when analysing ...

    • Performance assessment of a wide-bandgap-semiconductor dual-active-rridge converter for electrical vehicles 

      Berbel Artal, Néstor; Capellá Frau, Gabriel José; Zaragoza Bertomeu, Jordi; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      Dc-dc converters can be found in different kinds of electric vehicles (EVs). Their main function is to accommodate voltages and currents to the motor or other EV systems requirements. The use of wide-bandgap (WBG) devices ...