Stator current spectrum analysis of a double cage induction motor with rotor asymmetry
This study presents a method to directly calculate the stator current Fourier spectra in double-cage induction motors to diagnose faults in rotor cages. A circuit model is developed for this purpose, allowing the modelling of any asymmetry in the outer and inner rotor cages. The model extends the co...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2023-06-01
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| Series: | Archives of Electrical Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/127606/PDF/art04_int.pdf |
| _version_ | 1797771917841661952 |
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| author | Jarosław Tulicki Tadeusz Jan Sobczyk Maciej Sułowicz |
| author_facet | Jarosław Tulicki Tadeusz Jan Sobczyk Maciej Sułowicz |
| author_sort | Jarosław Tulicki |
| collection | DOAJ |
| description | This study presents a method to directly calculate the stator current Fourier spectra in double-cage induction motors to diagnose faults in rotor cages. A circuit model is developed for this purpose, allowing the modelling of any asymmetry in the outer and inner rotor cages. The model extends the conventional model of a cage motor by considering the higher space harmonics generated by the stator windings. The asymmetry of the cages is modelled by growing the resistance of any of the rotor bars. This results in various model equations, to be solved by looking for diagnostic signals. Motor current signature analysis is typically used to diagnose cage motors based on the Fourier spectra of the stator currents during steady-state operation. This study determines these spectra for double cage motors using the harmonic balance method, omitting the transient calculations. The calculation results confirmed the sensitivity of the stator current Fourier spectra as a diagnostic signal to distinguish faults in the outer and inner cages. |
| first_indexed | 2024-03-12T21:44:35Z |
| format | Article |
| id | doaj.art-ad71176c02894f5aa73c76772ea959cb |
| institution | Directory Open Access Journal |
| issn | 2300-2506 |
| language | English |
| last_indexed | 2024-03-12T21:44:35Z |
| publishDate | 2023-06-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Electrical Engineering |
| spelling | doaj.art-ad71176c02894f5aa73c76772ea959cb2023-07-26T13:35:03ZengPolish Academy of SciencesArchives of Electrical Engineering2300-25062023-06-01vol. 72No 2357371https://doi.org/10.24425/aee.2023.145413Stator current spectrum analysis of a double cage induction motor with rotor asymmetryJarosław Tulicki0https://orcid.org/0000-0003-1720-3448Tadeusz Jan Sobczyk1https://orcid.org/0000-0002-9073-0036Maciej Sułowicz2https://orcid.org/0000-0001-6436-1110Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Cracow University of Technology, 24 Warszawska str., 31-155 Kraków, PolandDepartment of Electrical Engineering, Faculty of Electrical and Computer Engineering, Cracow University of Technology, 24 Warszawska str., 31-155 Kraków, PolandDepartment of Electrical Engineering, Faculty of Electrical and Computer Engineering, Cracow University of Technology, 24 Warszawska str., 31-155 Kraków, PolandThis study presents a method to directly calculate the stator current Fourier spectra in double-cage induction motors to diagnose faults in rotor cages. A circuit model is developed for this purpose, allowing the modelling of any asymmetry in the outer and inner rotor cages. The model extends the conventional model of a cage motor by considering the higher space harmonics generated by the stator windings. The asymmetry of the cages is modelled by growing the resistance of any of the rotor bars. This results in various model equations, to be solved by looking for diagnostic signals. Motor current signature analysis is typically used to diagnose cage motors based on the Fourier spectra of the stator currents during steady-state operation. This study determines these spectra for double cage motors using the harmonic balance method, omitting the transient calculations. The calculation results confirmed the sensitivity of the stator current Fourier spectra as a diagnostic signal to distinguish faults in the outer and inner cages.https://journals.pan.pl/Content/127606/PDF/art04_int.pdfcage asymmetrydouble cage induction motorharmonic balance methodsteady-state analysisstator current fourier spectra |
| spellingShingle | Jarosław Tulicki Tadeusz Jan Sobczyk Maciej Sułowicz Stator current spectrum analysis of a double cage induction motor with rotor asymmetry Archives of Electrical Engineering cage asymmetry double cage induction motor harmonic balance method steady-state analysis stator current fourier spectra |
| title | Stator current spectrum analysis of a double cage induction motor with rotor asymmetry |
| title_full | Stator current spectrum analysis of a double cage induction motor with rotor asymmetry |
| title_fullStr | Stator current spectrum analysis of a double cage induction motor with rotor asymmetry |
| title_full_unstemmed | Stator current spectrum analysis of a double cage induction motor with rotor asymmetry |
| title_short | Stator current spectrum analysis of a double cage induction motor with rotor asymmetry |
| title_sort | stator current spectrum analysis of a double cage induction motor with rotor asymmetry |
| topic | cage asymmetry double cage induction motor harmonic balance method steady-state analysis stator current fourier spectra |
| url | https://journals.pan.pl/Content/127606/PDF/art04_int.pdf |
| work_keys_str_mv | AT jarosławtulicki statorcurrentspectrumanalysisofadoublecageinductionmotorwithrotorasymmetry AT tadeuszjansobczyk statorcurrentspectrumanalysisofadoublecageinductionmotorwithrotorasymmetry AT maciejsułowicz statorcurrentspectrumanalysisofadoublecageinductionmotorwithrotorasymmetry |