Ara es mostren els items 29-48 de 54

    • Evaluation of feature calculation methods for electromechanical system diagnosis 

      Delgado Prieto, Miquel; García Espinosa, Antonio; Ortega Redondo, Juan Antonio (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The use of intelligent machine health monitoring schemes is increasing in critical applications as traction tasks in the transport sector. The high diagnosis capability and reliability required in these systems are being ...
    • Evaluation of machine learning techniques for electro-mechanical system diagnosis 

      Delgado Prieto, Miquel; García Espinosa, Antonio; Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; Ortega Redondo, Juan Antonio (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
      Text en actes de congrés
      Accés obert
      The application of intelligent algorithms, in electro-mechanical diagnosis systems, is increasing in order to reach high Reliability and performance ratios in critical and complex scenarios. In this context, different ...
    • 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 ...
    • Feature extraction of demagnetization faults in permanent-magnet synchronous motors based on box-counting fractal dimension 

      Delgado Prieto, Miquel; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Urresty Betancourt, Julio César; Ortega Redondo, Juan Antonio (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-05)
      Article
      Accés restringit per política de l'editorial
      This paper presents a methodology for feature extraction of a new fault indicator focused on detecting demagnetization faults in a surface-mounted permanent-magnet synchronous motors operating under nonstationary conditions. ...
    • INSTRUMENTACIÓ ELECTRÒNICA (2n quadrimestre, 1r parcial) 

      García Espinosa, Antonio (Universitat Politècnica de Catalunya, 2011-04-06)
      Examen
      Accés restringit a la comunitat UPC
    • La Experiencia del equipo ETSEIB-ELISAVA en la Barcelona Smart Moto Challenge: Un proyecto Learning-by-doing de diseño e ingeniería 

      Moreno Eguilaz, Juan Manuel; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis; Hernández Chiva, Emilio (Congrés Internacional de Docència Universitària i Innovació (CIDUI), 2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Se describe una experiencia docente pionera basada en el clásico concepto“learning-by-doing”, en la que diseño e ingeniería se unen para obtener un producto de mercado. En concreto, se describen los retos planteados así ...
    • Modeling of surface-mounted permanent magnet synchronous motors with stator winding inter-turn faults 

      Romeral Martínez, José Luis; Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; García Espinosa, Antonio (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-05-29)
      Article
      Accés restringit per política de l'editorial
      This paper develops and analyzes a parametric model for simulating healthy and faulty surface-mounted permanent magnet synchronous motors. It allows studying the effects of stator winding interturn short-circuit faults. ...
    • Motor fault classification system including a novel hybrid feature reduction methodology 

      Delgado Prieto, Miquel; Urresty Betancourt, Julio César; Albiol, L.; Ortega Redondo, Juan Antonio; García Espinosa, Antonio; Romeral Martínez, José Luis; Vidal, E. (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The fault diagnosis field is in a continuous movement towards the generation of more reliable and powerful machine health monitoring schemes. Improved data processing methodologies are required to reach high diagnosis ...
    • Multi electrical machine pre-design tool with error handling and machine specific advanced graphical design aid features based on Modelica 

      Michalski, Tomasz Dobromir; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2015)
      Text en actes de congrés
      Accés obert
      This paper presents a design tool for Induction Machines, Permanent Magnet Synchronous Machines, Externally Excited Synchronous Machines and Switched Reluctance Machines. This software, based on ...
    • Multidimensional intelligent diagnosis system based on support vector machines classifier 

      Delgado Prieto, Miquel; Ortega Redondo, Juan Antonio; García Espinosa, Antonio; Cárdenas Araújo, Juan José; Romeral Martínez, José Luis (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Heding the diagnostic requirements of electromechanical systems applied in automotive and aeronautical sectors, a multidimensional diagnostic system based on Support Vector Machine classifier is presented in this paper. ...
    • Multiobjective optimization of multi-carrier energy system using a combination of ANFIS and genetic algorithms 

      Kampouropoulos, Konstantinos; Andrade, Fabio; Sala Cardoso, Enric; García Espinosa, Antonio; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2018-05-01)
      Article
      Accés obert
      This paper presents a novel method for the energy optimization of multi-carrier energy systems. The presented method combines an adaptive neuro-fuzzy inference system, to model and forecast the power demand of a plant, and ...
    • 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 fitting of high-frequency cable model parameters by applying evolutionary algorithms 

      Bogarra Rodríguez, Santiago; Riba Ruiz, Jordi-Roger; Sala Caselles, Vicenç; García Espinosa, Antonio (2017-05-01)
      Article
      Accés obert
      Due to the widespread use of electronic power converters, low-voltage high-frequency cable models are being increasingly applied in industry, automobile or aeronautics applications among others. It is known that depending ...
    • Optimization of modular wiring harnesses by means of regression models for temperature prediction of wire bundles 

      Rius Rueda, Armand; García Espinosa, Antonio; Díaz Millán, Manuel Alberto (Springer, 2017)
      Text en actes de congrés
      Accés obert
      Automotive wiring harnesses have become heavier and more complex due to their increasing number of electrical components. It is now desired to reduce their mass of copper. For this purpose, experimentation can be partially ...
    • Parameter identification of DC-DC converters under steady-state and transient conditions based on white-box models 

      Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel; Bogarra Rodríguez, Santiago; García Espinosa, Antonio (2018-12-05)
      Article
      Accés obert
      This paper proposes a white-box approach for identifying the parameters of DC-DC buck and boost switch mode power converters. It is based on discretizing the differential equations that describe the dynamic behavior of the ...
    • PMSM design for achieving a target torque-speed-efficiency map 

      Candelo Zuluaga, Carlos Andres; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Tubert Blanch, Pere (Institute of Electrical and Electronics Engineers (IEEE), 2020-11-24)
      Article
      Accés obert
      During the last years, the requirements for a fast and reliable design of electrical machines by applying optimization methods using finite element analysis (FEA), has become a subject of study. Due to their capabilities, ...
    • PMSM Parameter Estimation for Sensorless FOC based on differential power factor 

      Candelo Zuluaga, Carlos Andres; Riba Ruiz, Jordi-Roger; García Espinosa, Antonio (2021-01-01)
      Article
      Accés obert
      During the last years, different methods for identifying permanent magnet synchronous motor (PMSM) parameters have been developed. Such methods allow a better characterization of PMSMs, thus enabling a better control. This ...
    • PMSM Torque-speed-efficiency map evaluation from parameter estimation based on the stand still test 

      Candelo Zuluaga, Carlos Andres; Riba Ruiz, Jordi-Roger; García Espinosa, Antonio (2021-10-18)
      Article
      Accés obert
      During the last decades, a wide variety of methods to estimate permanent magnet synchronous motor (PMSM) performance have been developed. These methodologies have several advantages over conventional procedures, saving ...
    • Rare-earth-free propulsion motors for electric vehicles: a technology review 

      Riba Ruiz, Jordi-Roger; López Torres, Carlos; Romeral Martínez, José Luis; García Espinosa, Antonio (2016-05)
      Article
      Accés obert
      Several factors including fossil fuels scarcity, prices volatility, greenhouse gas emissions or current pollution levels in metropolitan areas are forcing the development of greener transportation systems based on more ...