Now showing items 1-20 of 152

    • 1a Jornada STEP 

      García-Almiñana, Daniel; Romeral Martínez, José Luis; López, Baltasar (2010-11-24)
      Audiovisual
      Open Access
    • A combined methodology of adaptive neuro-fuzzy inference system and genetic algorithm for short-term energy forecasting 

      Kampouropoulos, Konstantinos; Andrade Rengifo, Fabio; García Espinosa, Antonio; Romeral Martínez, José Luis (2014-02)
      Article
      Open Access
      This document presents an energy forecast methodology using Adaptive Neuro-Fuzzy Inference System (ANFIS) and Genetic Algorithms (GA). The GA has been used for the selection of the training inputs of the ANFIS in order to ...
    • A comprehensive analysis of SVPWM for a Five-phase VSI based on SiC devices applied to motor drives 

      Acosta Cambranis, Fernando Geovany; Zaragoza Bertomeu, Jordi; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      This paper presents a comprehensive analysis of SVPWM for a five-phase VSI based on SiC devices applied to motor drives. The modulation techniques analyzed use medium and large vectors to reach the reference vector. The ...
    • A computer model for teaching the dynamic behavior of AC contactors 

      Riba Ruiz, Jordi-Roger; García Espinosa, Antonio; Romeral Martínez, José Luis (2010-05)
      Article
      Open Access
      AC-powered contactors are extensively used in industry in applications such as automatic electrical devices, motor starters, and heaters. In this work, a practical session that allows students to model and simulate the ...
    • A genetic algorithm approach to optimization of power peaks in an automated warehouse 

      Cárdenas Araújo, Juan José; García Espinosa, Antonio; Romeral Martínez, José Luis; Andrade Rengifo, Fabio (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
      Conference report
      Open Access
      The simultaneous operation of the automated storage and retrieval machines (ASRs) in an automated warehouse can increase the likelihood that high power demand peaks turn unstable the electric system. Furthermore, high ...
    • A methodology for energy prediction and optimization of a system based on the Energy Hub Concept using Particle Swarms 

      Kampouropoulos, Konstantinos; Andrade, Fabio; Cárdenas Araújo, Juan José; Romeral Martínez, José Luis (2012)
      Conference report
      Open Access
      In this paper, a methodology for the energy prediction for the different consumptions of a system based in the Energy Hub concept is presented. The methodology that has been used for the energy prediction is based on an ...
    • A multi-objective GA to demand-side management in an automated warehouse 

      Cárdenas Araújo, Juan José; García Espinosa, Antonio; Romeral Martínez, José Luis; Urresty Betancourt, Julio César (2009)
      Conference report
      Open Access
      The simultaneous operation of the automated storage and retrieval machines (ASRs) in an automated warehouse can increase the likelihood that high power demand peaks turn unstable the electric system. Furthermore, high ...
    • A novel AC-AC converter based SiC for domestic induction cooking applications 

      Salehifar, Mehdi; Moreno Eguilaz, Juan Manuel; Sala Caselles, Vicenç; Romeral Martínez, José Luis (2013)
      Conference report
      Restricted access - publisher's policy
      This paper presents the analysis and design of a new high frequency ac-ac converter applied to domestic induction heating. The proposed topology uses only four switches to control power. Converter operation is same as a ...
    • A novel active gate driver for improving SiC MOSFET switching trajectory 

      Paredes Camacho, Alejandro; Sala Caselles, Vicenç; Ghorbani, Hamidreza; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-01)
      Article
      Open Access
      The trend in power electronic applications is to reach higher power density and higher efficiency. Currently, the wide band-gap devices such as silicon carbide MOSFET (SiC MOSFET) are of great interest because they can ...
    • A novel broken rotor bar fault detection method using park’s transform and wavelet decomposition 

      Salehi Arashloo Arashloo, Ramin; Romeral Martínez, José Luis; Salehifar, Mehdi (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference lecture
      Restricted access - publisher's policy
      Detection of broken rotor bars has been an important but difficult work in fault diagnosis area of induction motors. The characteristic frequency components of faulted rotor are very close to the power frequency component ...
    • A novel methodology for determination of soiling on PV panels by means of grey box modelling 

      Castellà Rodil, Marc; Patarroyo Montenegro, Juan; Kampouropoulos, Konstantinos; Andrade Rengifo, Fabio; Romeral Martínez, José Luis (2019)
      Conference report
      Restricted access - publisher's policy
      This article presents a novel methodology for the determination of soiling appearance on photovoltaic panels by means of data analysis of their energy production and operating conditions. The proposed methodology is based ...
    • A parallel analytical computation of synchronous reluctance machine 

      López Torres, Carlos; Bacco, G.; Bianchi, N.; Espinosa, Alberto; Romeral Martínez, José Luis (2018)
      Conference report
      Restricted access - publisher's policy
      This paper presents a parallel analytical computation of synchronous reluctance machines. It is based on two different analytical models, which take into account the geometry, the winding configuration and the material ...
    • A robust predictive current controller for healthy and open-circuit faulty conditions of five-phase BLDC drives applicable for wind generators and electric vehicles 

      Salehi Arashloo Arashloo, Ramin; Salehifar, Mehdi; Romeral Martínez, José Luis; Sala Caselles, Vicenç (Elsevier, 2015-03-01)
      Article
      Open Access
      Fault tolerant control of five-phase brushless direct current (BLDC) machines is gaining more importance in high-safety applications such as offshore wind generators and automotive industries. In many applications, traditional ...
    • A simple and robust method for open switch fault detection in power converters 

      Salehifar, Mehdi; Salehi Arashloo Arashloo, Ramin; Moreno Eguilaz, Juan Manuel; Sala Caselles, Vicenç; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference lecture
      Restricted access - publisher's policy
      In this paper, a new fault detection method based on signal normalization using a simple trigonometric function is presented and applied to a five phase converter for fault tolerant application under nonsinusoidal unbalanced ...
    • A Simple Closed-Loop Active Gate Voltage Driver for Controlling diC/dt and dvCE/dt in IGBTs 

      Ghorbani, Hamidreza; Sala Caselles, Vicenç; Paredes Camacho, Alejandro; Romeral Martínez, José Luis (2019-01-30)
      Article
      Open Access
      The increase of the switching speed in power semiconductors leads to converters with better efficiency and high power density. On the other hand, fast switching generates some consequences like overshoots and higher switching ...
    • A simple gate drive for SiC MOSFET with switching transient improvement 

      Ghorbani, Hamidreza; Sala Caselles, Vicenç; Paredes Camacho, Alejandro; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper presents a new active gate drive for SiC MOSFETs switching. The proposed driver is based on feedforward control method. The switch is benefited from a simple and effective analog gate driver (GD). The main ...
    • A simple method for reducing THD and improving the efficiency in CSI topology based on SiC power devices 

      Fernández Palomeque, Efrén Esteban; Paredes, Alejandro; Sala Caselles, Vicenç; Romeral Martínez, José Luis; Sala, Vicent; Paredes, Alejandro (2018-10-17)
      Article
      Open Access
      Silicon carbide (SiC)-based switching devices provide significant performance improvements in many aspects, including lower power dissipation, higher operating temperatures, and faster switching; compared with conventional ...
    • A Versatile workbench simulator: Five-phase inverter and PMa-SynRM performance evaluation 

      Acosta Cambranis, Fernando Geovany; Zaragoza Bertomeu, Jordi; Romeral Martínez, José Luis; Michalski, Tomasz Dobromir; Pou Muñoz, Viàtor (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Thispaperpresents the design and structure of aversatileworkbench simulator forevaluating the performance of a five-phase inverter andPermanent Magnet assisted Synchronous Reluctance Motor(PMa-SynRM). The simulatorallows ...
    • ACCIONAMENT I CONTROL DE VEHICLES ELÈCTRICS (Examen 1r quadrimestre, 1r parcial) 

      Romeral Martínez, José Luis (Universitat Politècnica de Catalunya, 2016-11-02)
      Exam
      Restricted access to the UPC academic community
    • ACCIONAMENT I CONTROL DE VEHICLES ELÈCTRICS (Examen 1r quadrimestre, 1r parcial) 

      Romeral Martínez, José Luis (Universitat Politècnica de Catalunya, 2015-10-27)
      Exam
      Restricted access to the UPC academic community