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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/9948

    Título
    Detection and quantification of bar breakage harmonics evolutions in inverter-fed motors through the dragon transform
    Autor
    Fernández Cavero, VanesaUBU authority Orcid
    Pons Llinares, Joan
    Duque Pérez, Óscar
    Morinigo Sotelo, Daniel
    Publicado en
    ISA Transactions. 2021, V. 109, p. 352-367
    Editorial
    Elsevier
    Fecha de publicación
    2021-03
    ISSN
    0019-0578
    DOI
    10.1016/j.isatra.2020.10.020
    Abstract
    The problem of detecting and quantifying bar breakage harmonics in inverter-fed induction motors has not been solved by the time–frequency transforms present in the technical literature. The paper proposes a new transform, called dragon transform, to solve this problem. The dragon atoms are defined with shapes perfectly adapted to the harmonic trajectories in the time–frequency plane, no matter how complex they are, enabling the precise tracing of the harmonics to be detected. A quantification method is also proposed, which obtains for the first time in the technical literature, the time evolutions of the harmonic amplitudes during a complex transient such as the start-up and the steady state of an inverter-fed motor. The transform performance is validated testing the induction motor under different load levels.
    Palabras clave
    Time–frequency analysis
    Transient analysis
    Fault diagnosis
    Broken rotor bar
    Induction motors
    Inverter
    Materia
    Electrotecnia
    Electrical engineering
    Ingeniería mecánica
    Mechanical engineering
    URI
    http://hdl.handle.net/10259/9948
    Versión del editor
    https://doi.org/10.1016/j.isatra.2020.10.020
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