Pineda-Sanchez, Manuel; Climente Alarcón, Vicente; Riera-Guasp, Martín; Puche-Panadero, Rubén; Pons Llinares, Joan(International Institute of Informatics and Cybernetics, 2012)
[EN] The training of technicians in maintenance requires the use of
signals produced by faulty machines in different operating
conditions, which are difficult to obtain either from the industry
or through destructive ...
[EN] Recognition of characteristic patterns is proposed in this paper in order to diagnose the presence of electromechanical faults in induction electrical machines. Two common faults are considered; broken rotor bars and ...
Sintes Fernández, Jorge(Universitat Politècnica de València, 2023-04-26)
[ES] La Estimación de la Pose Humana es una tarea en el campo de la visión artificial que implica identificar y capturar las posiciones y orientaciones del cuerpo humano. Esto se hace normalmente mediante la predicción de ...
[EN] In this paper, a new induction motor diagnosis methodology is proposed. The approach is based on obtaining a 2-D time–frequency plot representing the time–frequency evolution of the main components in an electrical ...
Rodríguez Mollá, Gaspar(Universitat Politècnica de València, 2020-02-11)
[ES] El objeto del presente proyecto es especificar las características técnicas y de construcción de la Línea Aérea para dar servicio a un centro de transformación de distribución sobre poste de intemperie, y al mismo ...
Pons Llinares, Joan(Universitat Politècnica de València, 2013-03-08)
Las técnicas de diagnóstico de máquinas eléctricas más utilizadas actualmente están basadas en el análisis de la corriente (debido a su carácter no invasivo) a través de la transformada de Fourier (FT). Su principal ...
[EN] This paper researches the detection of mixed eccentricity in Inverter-Fed Induction Motors. The classic FFT method cannot be applied when the stator current captured is not in steady state, which is very common in ...
Maldonado López, David(Universitat Politècnica de València, 2020-04-08)
[ES] El trabajo se basa en una implementación existente del escalado de un motor de inducción sin considerar el efecto película. Utilizando cálculos de elementos finitos, la influencia del efecto película en diferentes ...
[EN] The aim of this paper is to introduce a new linear time-frequency transform to improve the detection of fault components in electric machines transient currents. Linear transforms are analysed from the perspective of ...
Antonino Daviu, José Alfonso; Pons Llinares, Joan; Climente Alarcón, Vicente(International Association of Online Engineering (IAOE), 2013-06)
[EN] Maintenance of electric machines and installations is a particularly important area; eventual faults in
these devices may lead to significant losses in terms of time and money. The investment and concern in developing ...
Yang, Chanseung; Kang, Tae-June; Hyun, Doosoo; Lee, Sang Bin; Antonino Daviu, José Alfonso; Pons Llinares, Joan(Institute of Electrical and Electronics Engineers (IEEE), 2014-08)
Axial cooling air ducts in the rotor of large induction motors are known to produce magnetic asymmetry and can cause steady-state current or vibration spectrum analysis based fault detection techniques to fail. If the ...
[EN] Sensorless speed estimation has been extensively studied for its use in control schemes. Nevertheless, it is also a key step when applying Motor Current Signature Analysis to induction motor diagnosis: accurate speed ...
[EN] Failures in damper windings of synchronous machines operating in real facilities have been recently reported by several authors and companies. These windings are crucial elements of synchronous motors and generators, ...
[EN] The present work is focused on the diagnosis of mixed eccentricity faults in induction motors via the study of currents demanded by the machine. Unlike traditional methods, based on the analysis of stationary currents ...
[EN] Synchronous generators and motors constitute critical elements in power generation plants and certain industrial facilities. Damper bars are crucial components of most of these synchronous machines. They enable, among ...
Corral Hernández, Jesús Ángel; Antonino-Daviu, J.; Pons Llinares, Joan; Climente Alarcón, Vicente; Francés-Galiana, Vicente(Institute of Electrical and Electronics Engineers, 2015)
[EN] The reliable assessment of the rotor condition in induction motors is a matter of increasing concern in the industry. Although rotor damages are more likely in line-started motors operating under high inertias, some ...