LAPSE:2023.18545
Published Article
LAPSE:2023.18545
Utilization of Two Sensors in Offline Diagnosis of Squirrel-Cage Rotors of Asynchronous Motors
March 8, 2023
In the manufacture squirrel-cage rotors of asynchronous motors, a high standard of quality is required in every part of the production cycle. The die casting process usually creates porosity in the rotor bars. This most common defect in the rotor often remains hidden during the entire assembly of the machine and is usually only detected during final testing of the motor, i.e., at the end of the production process. This leads to unnecessary production costs. Therefore, the aim is to conduct a continuous control immediately after the rotor has been cast before further processing. In our paper, we are interested in selecting a suitable method of offline rotor diagnostics of an asynchronous motor that would be effective for these needs. In the first step, the selection of the method and its integration into the overall manufacturing process is carried out. The arrangement of the sensors and their calibration is then simulated on a 2D Finite Element Model of the rotor. The proposed offline measurement procedures and technologies are finally validated by testing measurements on a rotor that simulates the most frequently occurring faults. A test system is also developed that provides the operator continuous information about the running rotor measurements and makes it easier to evaluate the quality of the cast rotor by means of graphical visualization of the faults.
Record ID
Keywords
broken bar, Fault Detection, FEM simulation, offline diagnosis, oval patterns, signal processing, squirrel-cage
Subject
Suggested Citation
Kacor P, Bernat P, Moldrik P. Utilization of Two Sensors in Offline Diagnosis of Squirrel-Cage Rotors of Asynchronous Motors. (2023). LAPSE:2023.18545
Author Affiliations
Kacor P: Department of Electrical Power Engineering at VSB, Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic [ORCID]
Bernat P: Department of Electrical Power Engineering at VSB, Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
Moldrik P: Department of Electrical Power Engineering at VSB, Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic [ORCID]
Bernat P: Department of Electrical Power Engineering at VSB, Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
Moldrik P: Department of Electrical Power Engineering at VSB, Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic [ORCID]
Journal Name
Energies
Volume
14
Issue
20
First Page
6573
Year
2021
Publication Date
2021-10-13
Published Version
ISSN
1996-1073
Version Comments
Original Submission
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PII: en14206573, Publication Type: Journal Article
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Published Article
LAPSE:2023.18545
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doi:10.3390/en14206573
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[v1] (Original Submission)
Mar 8, 2023
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Mar 8, 2023
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