Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW
This work shows the results obtained from studying the influence of equivalent circuit resistances on three-phase induction motors. The stator resistance, rotor resistance, and iron losses resistance affect the different motor operating variables (output power, current, speed, power factor, starting...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/21/7130 |
| _version_ | 1797512588546801664 |
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| author | Marcel Torrent Balduí Blanqué |
| author_facet | Marcel Torrent Balduí Blanqué |
| author_sort | Marcel Torrent |
| collection | DOAJ |
| description | This work shows the results obtained from studying the influence of equivalent circuit resistances on three-phase induction motors. The stator resistance, rotor resistance, and iron losses resistance affect the different motor operating variables (output power, current, speed, power factor, starting ratios, and maximum torque). These influences have been quantified, paying particular attention to the losses affected and their impact on efficiency. The study carried out does not apply optimization techniques. It evaluates the different influences of the equivalent circuit’s different resistances on its operation by evaluating applicable constructive modifications concerning available motors. The work has been limited to three-phase induction motors up to 50 kW and low voltage, with the nominal powers of the selected motors being 0.25 kW, 1.5 kW, 7.5 kW, 22 kW, and 45 kW. The tools used to carry out the study are analyzing the equivalent circuit and the simulation of the electromagnetic structure using a finite-element program. The variations proposed in each resistance for all the motors studied is not purely theoretical, as it is based on applying feasible constructive modifications, appropriately analyzed and simulated. These modifications are the variation of the conductor diameter in the stator coils, the change of the section of the rotor cage, and the selection of different ferromagnetic steel types. |
| first_indexed | 2024-03-10T06:03:55Z |
| format | Article |
| id | doaj.art-a5bd7781b3ac4d6aa6878c78619ba2a4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T06:03:55Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a5bd7781b3ac4d6aa6878c78619ba2a42023-11-22T20:43:57ZengMDPI AGEnergies1996-10732021-11-011421713010.3390/en14217130Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kWMarcel Torrent0Balduí Blanqué1Grupo de Accionamientos Eléctricos con Conmutación Electrónica GAECE, Department of Electrical Engineering (DEE), Escuela Politécnica Superior de Ingeniería de Vilanova i la Geltrú (EPSEVG), Universitat Politècnica de Catalunya—UPC Barcelonatech, Víctor Balaguer 1, 08800 Vilanova i la Geltrú, SpainGrupo de Accionamientos Eléctricos con Conmutación Electrónica GAECE, Department of Electrical Engineering (DEE), Escuela Politécnica Superior de Ingeniería de Vilanova i la Geltrú (EPSEVG), Universitat Politècnica de Catalunya—UPC Barcelonatech, Víctor Balaguer 1, 08800 Vilanova i la Geltrú, SpainThis work shows the results obtained from studying the influence of equivalent circuit resistances on three-phase induction motors. The stator resistance, rotor resistance, and iron losses resistance affect the different motor operating variables (output power, current, speed, power factor, starting ratios, and maximum torque). These influences have been quantified, paying particular attention to the losses affected and their impact on efficiency. The study carried out does not apply optimization techniques. It evaluates the different influences of the equivalent circuit’s different resistances on its operation by evaluating applicable constructive modifications concerning available motors. The work has been limited to three-phase induction motors up to 50 kW and low voltage, with the nominal powers of the selected motors being 0.25 kW, 1.5 kW, 7.5 kW, 22 kW, and 45 kW. The tools used to carry out the study are analyzing the equivalent circuit and the simulation of the electromagnetic structure using a finite-element program. The variations proposed in each resistance for all the motors studied is not purely theoretical, as it is based on applying feasible constructive modifications, appropriately analyzed and simulated. These modifications are the variation of the conductor diameter in the stator coils, the change of the section of the rotor cage, and the selection of different ferromagnetic steel types.https://www.mdpi.com/1996-1073/14/21/7130efficiency improvementequivalent circuitinduction motorlossesoperating parameters |
| spellingShingle | Marcel Torrent Balduí Blanqué Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW Energies efficiency improvement equivalent circuit induction motor losses operating parameters |
| title | Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW |
| title_full | Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW |
| title_fullStr | Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW |
| title_full_unstemmed | Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW |
| title_short | Influence of Equivalent Circuit Resistances on Operating Parameters on Three-Phase Induction Motors with Powers up to 50 kW |
| title_sort | influence of equivalent circuit resistances on operating parameters on three phase induction motors with powers up to 50 kw |
| topic | efficiency improvement equivalent circuit induction motor losses operating parameters |
| url | https://www.mdpi.com/1996-1073/14/21/7130 |
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