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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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    0492532 - ÚT 2019 RIV DE eng J - Journal Article
    Schreier, Luděk - Bendl, Jiří - Chomát, Miroslav
    Analysis of influence of third spatial harmonic on currents and torque of multi-phase synchronous machine with permanent magnets.
    Electrical Engineering. Roč. 100, č. 3 (2018), s. 2095-2102. ISSN 0948-7921. E-ISSN 1432-0487
    R&D Projects: GA ČR(CZ) GA16-07795S
    Institutional support: RVO:61388998
    Keywords : multi-phase permanent magnet synchronous machines * higher spatial harmonics * space vectors
    OECD category: Electrical and electronic engineering
    Impact factor: 1.296, year: 2018

    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.
    Permanent Link: http://hdl.handle.net/11104/0286803

     
     
Number of the records: 1