Title: | Review of time and space harmonics in multi-phase induction machine |
Authors: | Kindl, Vladimír Čermák, Radek Ferková, Želmíra Skala, Bohumil |
Citation: | KINDL, V. ., ČERMÁK, R. ., FERKOVÁ, Ž. ., SKALA, B. . Review of time and space harmonics in multi-phase induction machine. Energies, 2020, roč. 13, č. 2, s. 1-17. ISSN 1996-1073. |
Issue Date: | 2020 |
Publisher: | MDPI |
Document type: | článek article |
URI: | 2-s2.0-85078484309 http://hdl.handle.net/11025/36937 |
ISSN: | 1996-1073 |
Keywords in different language: | multiphase;induction;motor;space harmonics;time harmonics;injection |
Abstract: | 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 e ects. The article analyses the air gap flux density harmonic content and formulates conclusions important to multiphase induction motors. It also discusses e ects of time harmonic currents and illustrates the principle of changing number of pole-pairs typical for harmonic currents being injected to increase torque. |
Rights: | © MDPI |
Appears in Collections: | Články / Articles (RICE) Články / Articles (KEV) OBD |
Files in This Item:
File | Size | Format | |
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Kindl_energies-13-00496-v2.pdf | 1,82 MB | Adobe PDF | View/Open |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/36937
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