Impact of Inverter Switching Harmonics in Detecting Changes in Impedance Due to Broken Rotor Bars

Ralikalakala, Lebohang; Barendse, Paul

doi:10.1109/ecce50734.2022.9947928

Cited by 3 publications

(1 citation statement)

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“…Although most works in the literature use impedance monitoring to analyse stator faults, the authors in [54] used impedance variations to detect BRBs in inverter-fed IMs. The method consists of using a pulsating magnetic flux setup within the machine by adapting the switching strategy of the inverter and measuring the impedance at each rotor angle while the rotor is manually rotated.…”

Section: Signal Wt Methods Detected Fault Referencesmentioning

confidence: 99%

Review of Fault Diagnosis Methods for Induction Machines in Railway Traction Applications

Issa,

Clerc,

Hologne-Carpentier

et al. 2024

Energies

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Induction motors make up approximately 80% of the electric motors in the railway sector due to their robustness, high efficiency, and low maintenance cost. Nevertheless, these motors are subject to failures which can lead to costly downtime and service interruptions. In recent years, there has been a growing interest in developing fault diagnosis systems for railway traction motors using advanced non-invasive detection and data analysis techniques. Implementing these methods in railway applications can prove challenging due to variable speed and low-load operating conditions, as well as the use of inverter-fed motor drives. This comprehensive review paper summarizes general methods of fault diagnosis for induction machines. It details the faults seen in induction motors, the most relevant signals measured for fault detection, the signal processing techniques for fault extraction as well as some classification algorithms for diagnosis purposes. By giving the advantages and drawbacks of each technique, it helps select the appropriate method that could address the challenges of railway applications.

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Section: Signal Wt Methods Detected Fault Referencesmentioning

confidence: 99%