Ara es mostren els items 62-81 de 201

    • Detection of interturn faults in PMSMs with different winding configuration 

      Saavedra Ordóñez, Harold; Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2014-03-03)
      Article
      Accés restringit per política de l'editorial
      Interturn faults in permanent magnet synchronous motors (PMSMs) may develop fast into more severe faults such as coil-to-coil, phase-to-phase and phase-to-ground short circuits. These faults are very destructive and may ...
    • Detection of partial demagnetization fault in PMSMs operating under nonstationary conditions 

      Wang, Chao; Delgado Prieto, Miquel; Romeral Martínez, José Luis; Chen, Zhe; Blaabjerg, Frede; Liu, Xiaoyan (2016-07-01)
      Article
      Accés obert
      Demagnetization fault detection of in-service permanent magnet synchronous machines (PMSMs) is a challenging task, because most PMSMs operate under nonstationary circumstances in industrial applications. A novel approach ...
    • Development of a behavior maps tool to evaluate drive operational boundaries and optimization assessment of PMa-SynRMs 

      López Torres, Carlos; Colls Castro, Carles; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2018-04-05)
      Article
      Accés obert
      The trend in traction motor design and optimization is to achieve high torque and power densities, wider speed range and high efficiency within the area defining the most frequent operating points. A fast tool to evaluate ...
    • Diagnosis method for suspension-errors detection in electro-dynamic loud-speakers 

      Sala Caselles, Vicenç; Delgado Prieto, Miquel; Cusidó Roura, Jordi; Romeral Martínez, José Luis (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, the wear of the suspensions in a speaker. This phenomenon can be characterized and seen as a variation of half inductance seen from the amplifier, because that value depends directly on the minimum and ...
    • Docker: Creación de contenedores 

      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
    • Docker: Instalación de Docker 

      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
    • Dynamic evaluation of fringing flux in linear electromechanical devices 

      García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Cusidó Roura, Jordi; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio (2010-03-12)
      Article
      Accés restringit per política de l'editorial
      Accurate dynamic models of electromechanical devices are essential in order to develop effective motion control strategies of such devices. The effects of fringing flux can not be ignored when dealing with electromagn ...
    • Efficiency evaluation of five-phase outer- rotor fault-tolerant BLDC drives under healthy and open-circuit faulty conditions 

      Salehi Arashloo Arashloo, Ramin; Salehifar, Mehdi; Saavedra Ordóñez, Harold; Romeral Martínez, José Luis (2014)
      Article
      Accés obert
      Fault tolerant motor drives are an interesting subject for many applications such as automotive industries and wind power generation. Among different configurations of these systems, five-phase BLDC drives are gaining more ...
    • Eficiencia energética: un problema, una reflexión y una solución 

      Romeral Martínez, José Luis (Campus de Terrassa de la UPC, 2013-06-13)
      Text en actes de congrés
      Accés obert
    • Eines d’autor: avaluació de noves eines orientades al desenvolupament de competències genèriques per la millora del procés d’aprenentatge autònom dels estudiants 

      Calomarde Palomino, Antonio; Rubio Sola, Jose Antonio; Vigara Campmany, Julio Enrique; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
      Text en actes de congrés / Comunicació de congrés
      Accés obert
      Els cursos on-line massius (Massive Open On-line Courses) estan emergent i suposarà un gran repte en l’educació universitària en els propers anys. Universitats com Standford i MIT han començat aquest any cursos en obert ...
    • EMA fault detection using fuzzy inference tools 

      Cusidó Roura, Jordi; Delgado Prieto, Miquel; Romeral Martínez, José Luis (2012-03-02)
      Capítol de llibre
      Accés obert
      Acoustic emission (AE) is one of the most important non-destructive testing (NDT) methods for materials, constructions and machines. Acoustic emission is defined as the transient elastic energy that is spontaneously released ...
    • Energy crisis in Europe: the European Union’s objectives and countries’ policy trends—new transition paths? 

      Urbano González, Eva María; Kampouropoulos, Konstantinos; Romeral Martínez, José Luis (2023-08-01)
      Article
      Accés obert
      Amidst the ongoing European energy crisis, the EU has proposed a legislative package to enhance gas independence from Russia, diversify energy supplies, and increase renewable energy targets. However, the urgency for energy ...
    • Energy equipment sizing and operation optimisation for prosumer industrial SMEs – A lifetime approach 

      Urbano González, Eva María; Martínez Viol, Víctor; Kampouropoulos, Konstantinos; Romeral Martínez, José Luis (2021-07-02)
      Article
      Accés obert
      The market is searching for solutions to reduce emissions in the energy sector by increasing the consumer efficiency and flexibility and integrating renewable sources. Prosumers are suited to this role and are increasingly ...
    • Energy management systems by means of computational intelligence algorithms 

      Cárdenas Araújo, Juan José; Romeral Martínez, José Luis; García, A. (Universitat Politècnica de Catalunya, 2010)
      Text en actes de congrés
      Accés obert
      This work pretends to take advantage of powerful capabilities of computational intelligence to improve the actual features of modeling, prognosis, diagnosis and optimization of load demand for EMS. This work gives a ...
    • Energy-Investment Decision-Making for Industry: Quantitative and Qualitative Risks Integrated Analysis 

      Urbano González, Eva María; Martínez Viol, Víctor; Kampouropoulos, Konstantinos; Romeral Martínez, José Luis (Multidisciplinary Digital Publishing Institute (MDPI), 2021-06-21)
      Article
      Accés obert
      Industrial SMEs may take the decision to invest in energy efficient equipment to reduce energy costs by replacing or upgrading their obsolete equipment or due to external socio-political and legislative pressures. When ...
    • Estudio de microgrids con interfases de convertidores de DC/AC 

      Andrade Rengifo, Fabio; Kampouropoulos, Konstantinos; Cusidó Roura, Jordi; Romeral Martínez, José Luis (2011)
      Text en actes de congrés
      Accés obert
      Este artículo presenta un estudio de Microgrids con interfases de convertidores DC/AC. El artículo muestra los modos de operación de las Microgrids, además implementa un modelo de pequeña señal para el modo de operación ...
    • Evaluation of multiclass novelty detection algorithms for electric machine monitoring 

      Ramirez Chavez, Mayra; Ruiz Soto, Lucía; Arellano Espitia, Francisco; Saucedo Dorantes, Juan Jose; Delgado Prieto, Miquel; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The detection of unexpected events represents, currently, one of the most critical challenges dealing with electromechanical system diagnosis. In this regard, machine learning based algorithms widely applied in other fields ...
    • Evaluation of trr distorting effects reduction in DCI-NPC multilevel power amplifiers by using SiC diodes and MOSFET technologies 

      Sala Caselles, Vicenç; Resano, Tomas; Romeral Martínez, José Luis; Moreno Eguilaz, Juan Manuel (Curran, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In the last decade, the Power Amplifier applications have used multilevel diode-clamped-inverter or neutral-point-clamped (DCI-NPC) topologies to present very low distortion at high power. In these applications a lot of ...
    • Evolutive ANFIS training for energy load profile forecast for an IEMS in an automated factory 

      Cárdenas Araújo, Juan José; García Espinosa, Antonio; Romeral Martínez, José Luis; Kampouropoulos, Konstantinos (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper an evolutive algorithm is used to train an adaptative-network-based fuzzy inference system (ANFIS), particularly a genetic algorithm (GA). The GA is able to train the antecedent and consequent parameters of ...
    • Fault detection by means of Hilbert-Huang transform of the stator current in a PMSM with demagnetization 

      García Espinosa, Antonio; Rosero García, Javier Alveiro; Cusidó Roura, Jordi; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio (2010-06)
      Article
      Accés obert
      This paper presents a novel method to diagnose demagnetization in permanent-magnet synchronousmotor (PMSM). Simulations have been performed by 2-D finite-element analysis in order to determine the current spectrum and ...