Review of Time and Space Harmonics in Multi-Phase Induction Machine
Modern multiphase electric machines take advantage of additional degrees of freedom for various purposes, including harmonic current injection to increase torque per ampere. This new approach introduces a non-sinusoidal air gap flux density distribution causing additional technical problems and so t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-01-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/13/2/496 |
| _version_ | 1797999204812980224 |
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| author | Vladimir Kindl Radek Cermak Zelmira Ferkova Bohumil Skala |
| author_facet | Vladimir Kindl Radek Cermak Zelmira Ferkova Bohumil Skala |
| author_sort | Vladimir Kindl |
| collection | DOAJ |
| description | Modern multiphase electric machines take advantage of additional degrees of freedom for various purposes, including harmonic current injection to increase torque per ampere. This new approach introduces a non-sinusoidal air gap flux density distribution causing additional technical problems and so the conventional assumptions need to be revised. The paper presents a methodology for synthesis of air gap magnetic field generated by a symmetrically distributed multiphase windings including the rotor field reaction due to the machine’s load. The proposed method is suitable either for single-layer or double layer windings and can be adopted either for full-pitched or chorded winding including slots effects. The article analyses the air gap flux density harmonic content and formulates conclusions important to multiphase induction motors. It also discusses effects of time harmonic currents and illustrates the principle of changing number of pole-pairs typical for harmonic currents being injected to increase torque. |
| first_indexed | 2024-04-11T11:01:00Z |
| format | Article |
| id | doaj.art-7eb55b3fa99e4b8da6d73f2f39308e00 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T11:01:00Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7eb55b3fa99e4b8da6d73f2f39308e002022-12-22T04:28:36ZengMDPI AGEnergies1996-10732020-01-0113249610.3390/en13020496en13020496Review of Time and Space Harmonics in Multi-Phase Induction MachineVladimir Kindl0Radek Cermak1Zelmira Ferkova2Bohumil Skala3Faculty of Electrical Engineering, University of West Bohemia, 306 14 Pilsen, Czech RepublicFaculty of Electrical Engineering, University of West Bohemia, 306 14 Pilsen, Czech RepublicFaculty of Electrical Engineering and Informatics, Technical University of Kosice, 040 01 Košice, SlovakiaFaculty of Electrical Engineering, University of West Bohemia, 306 14 Pilsen, Czech RepublicModern multiphase electric machines take advantage of additional degrees of freedom for various purposes, including harmonic current injection to increase torque per ampere. This new approach introduces a non-sinusoidal air gap flux density distribution causing additional technical problems and so the conventional assumptions need to be revised. The paper presents a methodology for synthesis of air gap magnetic field generated by a symmetrically distributed multiphase windings including the rotor field reaction due to the machine’s load. The proposed method is suitable either for single-layer or double layer windings and can be adopted either for full-pitched or chorded winding including slots effects. The article analyses the air gap flux density harmonic content and formulates conclusions important to multiphase induction motors. It also discusses effects of time harmonic currents and illustrates the principle of changing number of pole-pairs typical for harmonic currents being injected to increase torque.https://www.mdpi.com/1996-1073/13/2/496multiphaseinductionmotorspace harmonicstime harmonicsinjection |
| spellingShingle | Vladimir Kindl Radek Cermak Zelmira Ferkova Bohumil Skala Review of Time and Space Harmonics in Multi-Phase Induction Machine Energies multiphase induction motor space harmonics time harmonics injection |
| title | Review of Time and Space Harmonics in Multi-Phase Induction Machine |
| title_full | Review of Time and Space Harmonics in Multi-Phase Induction Machine |
| title_fullStr | Review of Time and Space Harmonics in Multi-Phase Induction Machine |
| title_full_unstemmed | Review of Time and Space Harmonics in Multi-Phase Induction Machine |
| title_short | Review of Time and Space Harmonics in Multi-Phase Induction Machine |
| title_sort | review of time and space harmonics in multi phase induction machine |
| topic | multiphase induction motor space harmonics time harmonics injection |
| url | https://www.mdpi.com/1996-1073/13/2/496 |
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