PWM inverter harmonics contributions to the inverter-fed induction machine bearing fault diagnosis

Date

2007-03-01

Author

Akin, Bilal
Toliyat, Hamid A.
Orguner, Umut
Rayner, Mark

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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The effects of inverter harmonics on motor current fault signatures are studied in detail in this paper. According to theory and experimentation, the fault signatures caused by the inverter harmonics are similar and comparable to those generated by the fundamental harmonic of the line current. Unlike the utility-driven motor, monitoring the current of the inverter-fed motor is considerably noisy, which can mask the fault signatures and render a wrong fault warning. Therefore, the proposed additional fault data processing technique is expected to support the inverter-fed motor fault decision making algorithms effectively. The theoretically derived bearing fault relations are found to match the experimental results. In order to confirm these claims, outer race bearing faults are tested and the line current spectrum of the faulty motor is compared to the healthy one.

Subject Keywords

Stator current, Motors, Eccentricity, Pulse width modulation inverters, Induction machines, Fault diagnosis, Vibrations, Fault detection, Protection, Frequency, Noise reduction, Power system harmonics, Electronics industry, Bars

URI

https://hdl.handle.net/11511/47510

DOI

https://doi.org/10.1109/apex.2007.357698

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Low order PWM inverter harmonics contributions to the inverter-fed induction machine fault diagnosis Akin, Bilal; Orguner, Umut; Toliyat, Hamid A.; Rayner, Mark (Institute of Electrical and Electronics Engineers (IEEE), 2008-02-01) In this paper, the effects of inverter harmonies on motor current fault signatures are studied in detail. It is theoretically and experimentally shown that the fault signatures caused by the inverter harmonies are similar and comparable to those generated by the fundamental harmonic on the line current. Theoretically-derived extended relations including bearing fault, eccentricity, and broken rotor bar relations are found to match experimental results. Furthermore, it is observed and reported that the asymm...
Line Current Analysis for Bearing fault Detection In Induction Motors Using Hilbert Transform Phase Oumaamar, M. E. K.; Razik, H.; Rezzoug, A.; Khezzar, A. (2011-09-10) The present paper focuses by means of an experimental study, on the effect of a bearing fault on the stator current signatures in induction motors. The variation in the amplitude of the characteristic components is not so significant. For that and in order to depict the presence of the fault harmonic signatures, the authors used the phase analysis of Hilbert transform applied on the spectrum modulus of the line current.
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Citation Formats

B. Akin, H. A. Toliyat, U. Orguner, and M. Rayner, “PWM inverter harmonics contributions to the inverter-fed induction machine bearing fault diagnosis,” 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47510.