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Analysis of influence of third spatial harmonic on currents and torque of multi-phase synchronous machine with permanent magnets
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SYSNO ASEP 0492532 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Analysis of influence of third spatial harmonic on currents and torque of multi-phase synchronous machine with permanent magnets Author(s) Schreier, Luděk (UT-L) RID
Bendl, Jiří (UT-L) RID
Chomát, Miroslav (UT-L) RID, ORCIDSource Title Electrical Engineering. - : Springer - ISSN 0948-7921
Roč. 100, č. 3 (2018), s. 2095-2102Number of pages 8 s. Publication form Print - P Language eng - English Country DE - Germany Keywords multi-phase permanent magnet synchronous machines ; higher spatial harmonics ; space vectors Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering OECD category Electrical and electronic engineering R&D Projects GA16-07795S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 UT WOS 000440282300070 EID SCOPUS 85044069638 DOI 10.1007/s00202-018-0686-8 Annotation In the case of multi-phase machines and in machines with special winding arrangements, such as combined star-delta winding, the third spatial harmonic of the magnetomotive force can, unlike in three-phase machines, negatively influence the waveforms of stator currents and torque of the machine. The paper shows how permanent magnets give rise to the third spatial harmonic of the magnetic flux in the air gap and how this harmonic influences the currents and the torque. The analysis of the situation in the machine is carried out by means of the method of space vectors and symmetrical components of the instantaneous values of currents and voltages. The result of the analysis is a mathematical description of the machine. By means of numerical simulations, it is shown how the third spatial harmonic distorts the waveforms of the stator phase currents and torque. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2019
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