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

Date

2008-02-01

Author

Akin, Bilal
Orguner, Umut
Toliyat, Hamid A.
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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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 asymmetries on the rotor caused by broken rotor bars increase the amplitude of even harmonies. To confirm these claims, bearing, eccentricity, and broken rotor bar faults are tested and the line current spectrum of each faulty motor is compared with the healthy one. The proposed additional fault data are expected to contribute positively to the inverter-fed motor fault decision-making algorithms.

Subject Keywords

Control and Systems Engineering, Electrical and Electronic Engineering

URI

https://hdl.handle.net/11511/48643

Journal

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS

DOI

https://doi.org/10.1109/tie.2007.911954

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

B. Akin, U. Orguner, H. A. Toliyat, and M. Rayner, “Low order PWM inverter harmonics contributions to the inverter-fed induction machine fault diagnosis,” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, pp. 610–619, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48643.