Ara es mostren els items 9-17 de 17

    • Electrical and magnetic faults diagnosis in permanent magnet synchronous motors 

      Urresty Betancourt, Julio César (Universitat Politècnica de Catalunya, 2012-09-21)
      Tesi
      Accés obert
      Permanent magnet synchronous motors (PMSMs) are an alternative in critical applications where high-speed operation, compactness and high efficiency are required. In these applications it is highly desired to dispose of ...
    • 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 ...
    • Fault detection in dynamic conditions by means of discrete wavelet decomposition for PMSM running under bearing damage 

      Rosero García, Javier Alveiro; Romeral Martínez, José Luis; Rosero, Esteban; Urresty Betancourt, Julio César (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
      Text en actes de congrés
      Accés obert
      This paper presents a study of the Permanent Magnet Synchronous Machine (PMSM) running under bearing damage. To carry out the study a two-dimensional (2-D) Finite Element Analysis (FEA) is used. Stator current induced ...
    • 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. ...
    • 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 ...
    • Runout tracking in electric motors using self-mixing interferometry 

      Atashkhooei, Reza; Urresty Betancourt, Julio César; Royo Royo, Santiago; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (IEEE Industrial Electronics Society, 2014-01-17)
      Article
      Accés restringit per política de l'editorial
    • Shaft trajectory analysis in a partially demagnetized permanent magnet synchronous motor 

      Urresty Betancourt, Julio César; Atashkhooei, Reza; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis; Royo Royo, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2013-08-01)
      Article
      Accés restringit per política de l'editorial
      Abstract—Demagnetization faults have a negative impact on the behavior of permanent-magnet synchronous machines, thus reducing their efficiency, generating torque ripple, mechanical vibrations, and acoustic noise, ...
    • Stator short circuits detection in PMSM by means of higher order spectral analysis (HOSA) 

      Rosero García, Javier Alveiro; Ortega Redondo, Juan Antonio; Urresty Betancourt, Julio César; Cárdenas Araújo, Juan José; Romeral Martínez, José Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
      Text en actes de congrés
      Accés obert
      This paper presents and analyzed short circuit failures for Permanent Magnet Synchronous Motor (PMSM). The study includes stated and dynamic condition for experimental and simulation test. The stator current is analyzed ...