2026-06-30T01:13:11Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/99452025-01-17T01:05:28Zcom_10259_9931com_10259_4266com_10259.4_106com_10259_2604col_10259_9932

Fernández Cavero, Vanesa Pons Llinares, Joan Duque Pérez, Óscar Morinigo Sotelo, Daniel 2025-01-16T12:01:46Z 2025-01-16T12:01:46Z 2021-03 0093-9994 http://hdl.handle.net/10259/9945 10.1109/TIA.2021.3066317 1939-9367 Fault detection in induction motors powered by inverters operating in nonstationary regimes remains a challenge. The trajectory in the time–frequency plane of harmonics related to broken rotor bar develops very in proximity to the path described by the fundamental component. In addition, their energy is much lower than the amplitude of the first harmonic. These two characteristics make it challenging to observe them. The Dragon Transform (DT), here presented, is developed to overcome the described problem. In this article, the DT is assessed with nonlinear inverter-fed startups, where its high time and frequency resolutions facilitate the monitoring of fault harmonics even with highly adjacent trajectories to the first harmonic path. application/pdf eng Institute of Electrical and Electronics Engineers IEEE Transactions on Industry Applications. 2021, V. 57, n. 3, p. 2559-2568 https://doi.org/10.1109/TIA.2021.3066317 Fault detection Induction motors (IM) Inverters Rotors Time-frequency domain analysis Electrotecnia Ingeniería mecánica Electrical engineering Mechanical engineering Detection of Broken Rotor Bars in Nonlinear Startups of Inverter-Fed Induction Motors info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess IEEE Transactions on Industry Applications 57 3 2559 2568