Now showing items 1-20 of 68

  • Accurate Bearing Faults Classification based on Statistical-Time Features, Curvilinear Component Analysis and Neural Networks 

    Delgado Prieto, Miquel; Cirrincione,, Giansalvo; García Espinosa, Antonio; Ortega Redondo, Juan Antonio; Henao, Humberto (2012)
    Conference report
    Restricted access - publisher's policy
    Bearing faults are the commonest form of malfunction associated with electrical machines. So far, the research has been carried out mainly in the detection of localized faults, but the diagnosis of distributed faults ...
  • Análisis eléctrico del altavoz dinámico mediante modelado de anomalías mecánicas de fricción 

    Ruiz Illana, Germán; Sala Caselles, Vicenç; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis (2010)
    Conference report
    Open Access
    El 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 ...
  • An introduction to fault diagnosis of permanent magnet synchronous machines in master's degree courses 

    Riba Ruiz, Jordi-Roger; García Espinosa, Antonio; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio (John Wiley & Sons, 2010-08-16)
    Article
    Restricted access - publisher's policy
    Early fault detection and diagnosis of high-performance electric motors has been an active area of research for the past two decades. This work presents a practical session that facilitates instructing students in this ...
  • A novel condition monitoring scheme for bearing faults based on Curvilinear Component Analysis and hierarchical neural networks 

    Delgado Prieto, Miquel; Cirrincione,, Giansalvo; García Espinosa, Antonio; Ortega Redondo, Juan Antonio; Henao, Humberto (2012)
    Conference report
    Restricted access - publisher's policy
    Mostly the faults in electrical machines are related with the bearings. Thus, a reliable bearing condition monitoring scheme able to detect either local or distributed defects are mandatory to avoid a breakdown in the ...
  • A novel distributed fiber-optic strain sensor 

    García Hernández, Miguel J.; Ortega Redondo, Juan Antonio; Chávez Domínguez, Juan Antonio; Salazar Soler, Jorge; Turó Peroy, Antonio (2002-08)
    Article
    Restricted access - publisher's policy
    The theory of operation of a fiber-optic-based strain sensor system, suitable for long structures, is described. The proposed sensor design is composed of several hundreds of sections separated by reflectors in order to ...
  • Bearing fault detection by a novel condition-monitoring scheme based on statistical-time features and neural networks 

    Delgado Prieto, Miquel; Cirrincione, Giansalvo; García Espinosa, Antonio; Ortega Redondo, Juan Antonio; Henao, Humberto (Institute of Electrical and Electronics Engineers (IEEE), 2013-08)
    Article
    Restricted access - publisher's policy
    Bearing degradation is the most common source of faults in electrical machines. In this context, this work presents a novel monitoring scheme applied to diagnose bearing faults. Apart from detecting local defects, i.e., ...
  • Bearing fault diagnosis by EXIN CCA 

    Cirrincione,, Giansalvo; Henao, Humberto; Delgado Prieto, Miquel; Ortega Redondo, Juan Antonio (IEEE Computer Society Publications, 2012)
    Conference report
    Open Access
    EXIN CCA is an extension of the Curvilinear Component Analysis (CCA), which solves for the noninvariant CCA projection and allows representing data drawn under different operating conditions. It can be applied to data ...
  • Closed-loop controller for eliminating the contact bounce in DC core contactors 

    García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Cusidó Roura, Jordi; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis (2010-09)
    Article
    Open Access
    The 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 ...
  • Conocer la percepción del riesgo costero para adaptarse al cambio climático 

    Roca Bosch, Elisabet; Villares Junyent, Míriam; Oroval Junyent, Laia; Ortega Redondo, Juan Antonio (2014)
    Conference lecture
    Open Access
    Para contribuir a evaluar el riesgo costero desde un enfoque integrado y multidimensional se analizan las percepciones de los actores involucrados en la gestión de la costa con el fin de determinar su visión y conocimiento ...
  • Cursp práctico de microprocesadores con metodología semipresencial 

    Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis; Thomaschewski, J; García Espinosa, Antonio; Cusidó Roura, Jordi; Mon González, Juan (Universitat Politècnica de Catalunya, 2004)
    Conference report
    Open Access
    El 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, ...
  • Data analytics for performance evaluation under uncertainties applied to an industrial refrigeration plant 

    Cirera Balcells, Josep; Cariño Corrales, Jesús Adolfo; Zurita Millán, Daniel; Ortega Redondo, Juan Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
    Article
    Open Access
    Artificial intelligence has bounced into industrial applications contributing several advantages to the field and have led to the possibility to open new ways to solve many actual problems. In this paper, a data-driven ...
  • Data-driven operation performance evaluation of multi-chiller system using self-organizing maps 

    Cirera Balcells, Josep; Quiles Zaguirre, Maria; Cariño Corrales, Jesús Adolfo; Zurita Millán, Daniel; Ortega Redondo, Juan Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Industrial plants performance evaluation has become a difficult task due to the machinery complexity. Multi-chiller systems take up big proportion of energy in food and beverage companies. Complex refrigeration generation ...
  • Distributed neuro-fuzzy feature forecasting approach for condition monitoring 

    Zurita Millán, Daniel; Cariño Corrales, Jesús Adolfo; Delgado Prieto, Miquel; Ortega Redondo, Juan Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    The industrial machinery reliability represents a critical factor in order to assure the proper operation of the whole productive process. In regard with this, diagnosis schemes based on physical magnitudes acquisition, ...
  • 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
    Restricted access - publisher's policy
    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 ...
  • 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)
    Conference report / Conference lecture
    Open Access
    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 ...
  • ELECTRONICA ANALOGICA (Examen 1r Quadr.) 

    Ortega Redondo, Juan Antonio (Universitat Politècnica de Catalunya, 2002-10-31)
    Exam
    Restricted access to the UPC academic community
  • ELECTRONICA DIGITAL (Examen 1r Quadr.) 

    Ortega Redondo, Juan Antonio (Universitat Politècnica de Catalunya, 2007-01-15)
    Exam
    Restricted access to the UPC academic community
  • ELECTRONICA DIGITAL (Examen 1r Quadr.) 

    Ortega Redondo, Juan Antonio (Universitat Politècnica de Catalunya, 2008-01-11)
    Exam
    Restricted access to the UPC academic community
  • ELECTRONICA DIGITAL (Examen 1r Quadr.) 

    Ortega Redondo, Juan Antonio (Universitat Politècnica de Catalunya, 2009-01-14)
    Exam
    Restricted access to the UPC academic community
  • ELECTRONICA DIGITAL (Examen 2n Quadr.) 

    Ortega Redondo, Juan Antonio (Universitat Politècnica de Catalunya, 2002-06-17)
    Exam
    Restricted access to the UPC academic community