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    A Nine-phase Six-Terminal Fractional-Slot-Winding for Interior Permanent-Magnet Machines with Low Space Harmonics

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    Type
    Conference Paper
    Authors
    Abdel-Khalik, Ayman S.
    Gadoue, Shady
    Ahmed, Shehab
    KAUST Department
    Ali I. Al-Naimi Petroleum Engineering Research Center (ANPERC)
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2018-10-25
    Online Publication Date
    2018-10-25
    Print Publication Date
    2018-09
    Permanent link to this record
    http://hdl.handle.net/10754/630702
    
    Metadata
    Show full item record
    Abstract
    This paper introduces a nine-phase six-terminal fractional slot concentrated winding layout suitable for Interior Permanent-Magnet (IPM) machine with a number of stator slots equals a multiple of nine. The winding layout when compared with a three-phase machine having the same slot/pole combination can effectively eliminate all air-gap flux sub harmonics. This highly reduces rotor core and magnet losses. Moreover, it offers a torque gain of approximately 2.5% over conventional three-phase winding layout. The proposed layout is investigated based on some well-known slot-pole combinations, namely, 9-slot/8-pole and 9-slot/10-pole, and a comparison is carried out with the conventional three-phase case assuming same stator and rotor dimensions. Being a multiphase winding, the proposed layout also offers a higher reliability-oriented design over the three-phase based systems. During a fault in one of the three-phase converters, the machine can steadily run at approximately half load with the faulty converter disconnected. The proposed winding is also compared with the well-known six-phase 12-slot/10-pole combination in terms of torque production, torque ripple, and induced eddy current losses.
    Citation
    Abdel-Khalik AS, Gadoue S, Ahmed S (2018) A Nine-phase Six-Terminal Fractional-Slot-Winding for Interior Permanent-Magnet Machines with Low Space Harmonics. 2018 XIII International Conference on Electrical Machines (ICEM). Available: http://dx.doi.org/10.1109/ICELMACH.2018.8506749.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2018 XIII International Conference on Electrical Machines (ICEM)
    Conference/Event name
    23rd International Conference on Electrical Machines, ICEM 2018
    DOI
    10.1109/ICELMACH.2018.8506749
    Additional Links
    https://ieeexplore.ieee.org/document/8506749
    ae974a485f413a2113503eed53cd6c53
    10.1109/ICELMACH.2018.8506749
    Scopus Count
    Collections
    Conference Papers; Ali I. Al-Naimi Petroleum Engineering Research Center (ANPERC); Physical Science and Engineering (PSE) Division; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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