NDLI: PWM Inverter Harmonics Contributions to the Inverter-Fed Induction Machine Bearing Fault Diagnosis

Content Provider	IEEE Xplore Digital Library
Author	Akin, Bilal Toliyat, Hamid A. Orguner, Umut Rayner, Mark
Copyright Year	2007
Description	Author affiliation: Dept. of Electrical Engineering, Middle East Technical University, Balgat, Ankara 06531, Turkey. umut@metu.edu.tr (Orguner, Umut) \|\| Research & Development Center, Toshiba Industrial Corporation, College Station Division, Bryan, TX 77802. mark.rayner@tic.toshiba.com (Rayner, Mark) \|\| Advanced Electric Machines & Power Electronics Lab., Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843-3128. Toliyat@ece.tamu.edu (Toliyat, Hamid A.) \|\| Advanced Electric Machines & Power Electronics Lab., Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843-3128 (Akin, Bilal)
Abstract	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.
Starting Page	1393
Ending Page	1399
File Size	2385931
Page Count	7
File Format	PDF
ISBN	1424407133
ISSN	10482334
DOI	10.1109/APEX.2007.357698
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-02-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Induction machines Fault diagnosis Vibrations Fault detection Protection Frequency Noise reduction Power system harmonics Electronics industry
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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