Numerical simulation of a squirrel cage motor including magnetic wedges and radial vents
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional Autónoma de México
2021
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| _version_ | 1876436897262206976 |
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| author | David Antonio Aragon-Verduzco |
| author_facet | David Antonio Aragon-Verduzco |
| contents | Numerical simulation of a squirrel cage motor including magnetic wedges and radial vents David Antonio Aragon-Verduzco Rafael Escarela-Perez Juan Carlos Olivares-Galvan Eduardo Campero-Littlewood Serguei Maximov Jose Luis Hernández-Ávila Ingeniería radial vents magnetic wedges squirrel cage motor numerical simulation Electromagnetic performance This work is a proposal of a finite element model to obtain the electromagnetic performance of a squirrel cage motor considering the magnetic wedges and radial vents. To analyze the electromagnetic performance at the design stage, without the need to build a pro- totype, the paper proposes a simple two dimensions finite element model, which includes components as magnetic wedges used to hold the windings in the stator slots, radial vents in the core, which are part of motor cooling system, and edge effects to improve the model. The stator and rotor cores are modeled with an equivalent homogeneous permeability, obtained from the combination of the radial air vents of rotor and stator and the magnetic core material. The permeability of magnetic wedges is also considered. Edge effects considered are the end winding leakage inductance, representing the leakage flux in the end coils of the stator, and an equi- valent impedance between rotor bars due to conductivity and leakage flux in the rings of the squirrel cage. The results obtained are compared with experimental tests performed in steady state to validate the model. Furthermore, no-load and blocked-rotor tests are simulated to estimate the equivalent circuit parameters and draw the typical induction motor torque-speed curve, which is compared with the obtained curve by means of Thevenin’s theorem. With this proposed model, the results are close to the ones obtained ex- perimentally. The implementation of a 3D model is complex, and the computational cost can be much higher, compared to the 2D model developed here. 2021 artículo científico 1405-7743 https://www.redalyc.org/articulo.oa?id=40471804005 https://www.redalyc.org/journal/404/40471804005/ https://www.redalyc.org/journal/404/40471804005/html/ https://www.redalyc.org/journal/404/40471804005/40471804005.epub https://www.redalyc.org/journal/404/40471804005/movil 10.14482/INDES.30.1.303.661 en http://www.redalyc.org/revista.oa?id=404 Ingeniería. Investigación y Tecnología application/pdf Universidad Nacional Autónoma de México Ingeniería. Investigación y Tecnología (México) Num.4 Vol.XXII |
| format | Artículo científico |
| id | redalyc_40471804005 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Numerical simulation of a squirrel cage motor including magnetic wedges and radial vents David Antonio Aragon-Verduzco Ingeniería radial vents magnetic wedges squirrel cage motor numerical simulation Electromagnetic performance Numerical simulation of a squirrel cage motor including magnetic wedges and radial vents David Antonio Aragon-Verduzco Rafael Escarela-Perez Juan Carlos Olivares-Galvan Eduardo Campero-Littlewood Serguei Maximov Jose Luis Hernández-Ávila Ingeniería radial vents magnetic wedges squirrel cage motor numerical simulation Electromagnetic performance This work is a proposal of a finite element model to obtain the electromagnetic performance of a squirrel cage motor considering the magnetic wedges and radial vents. To analyze the electromagnetic performance at the design stage, without the need to build a pro- totype, the paper proposes a simple two dimensions finite element model, which includes components as magnetic wedges used to hold the windings in the stator slots, radial vents in the core, which are part of motor cooling system, and edge effects to improve the model. The stator and rotor cores are modeled with an equivalent homogeneous permeability, obtained from the combination of the radial air vents of rotor and stator and the magnetic core material. The permeability of magnetic wedges is also considered. Edge effects considered are the end winding leakage inductance, representing the leakage flux in the end coils of the stator, and an equi- valent impedance between rotor bars due to conductivity and leakage flux in the rings of the squirrel cage. The results obtained are compared with experimental tests performed in steady state to validate the model. Furthermore, no-load and blocked-rotor tests are simulated to estimate the equivalent circuit parameters and draw the typical induction motor torque-speed curve, which is compared with the obtained curve by means of Thevenin’s theorem. With this proposed model, the results are close to the ones obtained ex- perimentally. The implementation of a 3D model is complex, and the computational cost can be much higher, compared to the 2D model developed here. 2021 artículo científico 1405-7743 https://www.redalyc.org/articulo.oa?id=40471804005 https://www.redalyc.org/journal/404/40471804005/ https://www.redalyc.org/journal/404/40471804005/html/ https://www.redalyc.org/journal/404/40471804005/40471804005.epub https://www.redalyc.org/journal/404/40471804005/movil 10.14482/INDES.30.1.303.661 en http://www.redalyc.org/revista.oa?id=404 Ingeniería. Investigación y Tecnología application/pdf Universidad Nacional Autónoma de México Ingeniería. Investigación y Tecnología (México) Num.4 Vol.XXII |
| title | Numerical simulation of a squirrel cage motor including magnetic wedges and radial vents |
| topic | Ingeniería radial vents magnetic wedges squirrel cage motor numerical simulation Electromagnetic performance |
| url | https://www.redalyc.org/articulo.oa?id=40471804005 https://www.redalyc.org/journal/404/40471804005/ https://www.redalyc.org/journal/404/40471804005/html/ https://www.redalyc.org/journal/404/40471804005/40471804005.epub https://www.redalyc.org/journal/404/40471804005/movil |