A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design
This work provides an investigation based on a fast estimation of the degree of unbalance (<inline-formula><math display="inline"><semantics><mrow><mi>D</mi><mo>.</mo><mi>U</mi><mo>.</mo><mo>%</mo></mrow...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-10-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/13/20/5414 |
| _version_ | 1797550747073642496 |
|---|---|
| author | Massimo Caruso Antonino Oscar Di Tommaso Fabrizio Marignetti Rosario Miceli |
| author_facet | Massimo Caruso Antonino Oscar Di Tommaso Fabrizio Marignetti Rosario Miceli |
| author_sort | Massimo Caruso |
| collection | DOAJ |
| description | This work provides an investigation based on a fast estimation of the degree of unbalance (<inline-formula><math display="inline"><semantics><mrow><mi>D</mi><mo>.</mo><mi>U</mi><mo>.</mo><mo>%</mo></mrow></semantics></math></inline-formula>) and the differential leakage factor (<inline-formula><math display="inline"><semantics><msub><mi>σ</mi><mn>0</mn></msub></semantics></math></inline-formula>) of multiphase electrical machine windings. This analysis is carried out by exploring almost 5000 combinations in terms of number of slots, pole pairs, phases and layers. The variability of the leakage factor is examined for each condition, defining an optimal region for its minimization. As a result, an extended mapping is carried out for both the degree of unbalance and the leakage factor, providing a useful tool during the early design stage of winding configurations for multiphase electric machines, even with slight asymmetries. The results obtained from this investigation are validated through finite element analysis and demonstrate that the differential leakage factor can be significantly reduced by adopting winding configurations with slight asymmetries, which also represent a valuable alternative in the electrical machine design. |
| first_indexed | 2024-03-10T15:34:47Z |
| format | Article |
| id | doaj.art-a927809707774bd5b6669cdf7f23019a |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T15:34:47Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a927809707774bd5b6669cdf7f23019a2023-11-20T17:23:11ZengMDPI AGEnergies1996-10732020-10-011320541410.3390/en13205414A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding DesignMassimo Caruso0Antonino Oscar Di Tommaso1Fabrizio Marignetti2Rosario Miceli3Department of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, ItalyDepartment of Electrical and Information Engineering, University of Cassino and South Lazio, via G. Di Biasio 43, 03043 Cassino, ItalyDepartment of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, ItalyThis work provides an investigation based on a fast estimation of the degree of unbalance (<inline-formula><math display="inline"><semantics><mrow><mi>D</mi><mo>.</mo><mi>U</mi><mo>.</mo><mo>%</mo></mrow></semantics></math></inline-formula>) and the differential leakage factor (<inline-formula><math display="inline"><semantics><msub><mi>σ</mi><mn>0</mn></msub></semantics></math></inline-formula>) of multiphase electrical machine windings. This analysis is carried out by exploring almost 5000 combinations in terms of number of slots, pole pairs, phases and layers. The variability of the leakage factor is examined for each condition, defining an optimal region for its minimization. As a result, an extended mapping is carried out for both the degree of unbalance and the leakage factor, providing a useful tool during the early design stage of winding configurations for multiphase electric machines, even with slight asymmetries. The results obtained from this investigation are validated through finite element analysis and demonstrate that the differential leakage factor can be significantly reduced by adopting winding configurations with slight asymmetries, which also represent a valuable alternative in the electrical machine design.https://www.mdpi.com/1996-1073/13/20/5414electrical machinesdifferential leakage factorsymmetrical windingsasymmetrical windingsunbalance degreewinding design |
| spellingShingle | Massimo Caruso Antonino Oscar Di Tommaso Fabrizio Marignetti Rosario Miceli A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design Energies electrical machines differential leakage factor symmetrical windings asymmetrical windings unbalance degree winding design |
| title | A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design |
| title_full | A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design |
| title_fullStr | A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design |
| title_full_unstemmed | A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design |
| title_short | A General Investigation on the Differential Leakage Factor for Symmetrical and Asymmetrical Multiphase Winding Design |
| title_sort | general investigation on the differential leakage factor for symmetrical and asymmetrical multiphase winding design |
| topic | electrical machines differential leakage factor symmetrical windings asymmetrical windings unbalance degree winding design |
| url | https://www.mdpi.com/1996-1073/13/20/5414 |
| work_keys_str_mv | AT massimocaruso ageneralinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign AT antoninooscarditommaso ageneralinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign AT fabriziomarignetti ageneralinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign AT rosariomiceli ageneralinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign AT massimocaruso generalinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign AT antoninooscarditommaso generalinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign AT fabriziomarignetti generalinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign AT rosariomiceli generalinvestigationonthedifferentialleakagefactorforsymmetricalandasymmetricalmultiphasewindingdesign |