RT info:eu-repo/semantics/article T1 Detection of Broken Rotor Bars in Nonlinear Startups of Inverter-Fed Induction Motors A1 Fernández Cavero, Vanesa A1 Pons Llinares, Joan A1 Duque Pérez, Óscar A1 Morinigo Sotelo, Daniel K1 Fault detection K1 Induction motors (IM) K1 Inverters K1 Rotors K1 Time-frequency domain analysis K1 Electrotecnia K1 Electrical engineering K1 Ingeniería mecánica K1 Mechanical engineering AB Fault detection in induction motors powered by inverters operating in nonstationary regimes remains a challenge.The trajectory in the time–frequency plane of harmonics relatedto 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 twocharacteristics make it challenging to observe them. The DragonTransform (DT), here presented, is developed to overcome thedescribed problem. In this article, the DT is assessed with nonlinearinverter-fed startups, where its high time and frequency resolutionsfacilitate the monitoring of fault harmonics even with highly adjacent trajectories to the first harmonic path. PB Institute of Electrical and Electronics Engineers SN 0093-9994 YR 2021 FD 2021-03 LK http://hdl.handle.net/10259/9945 UL http://hdl.handle.net/10259/9945 LA eng DS Repositorio Institucional de la Universidad de Burgos RD 21-ene-2025