A Systematic Approach for Developing Electric Machine Windings with Suppressed MMF Space Harmonics

References

• D. A. Kocabas, “Novel winding and core design for maximum reduction of harmonic magnetomotive force in AC motors,” IEEE Trans. Magn., vol. 45, no. 2, pp. 735–746, Feb. 2009.
   Web of Science ®Google Scholar
• A. Tessarolo, M. Mezzarobba, and A. Contin, “A stator winding design with unequally-sized coils for adjusting air-gap space harmonic content of induction machines,” in Proc. 19 Int. Conf Elect. Mach, Rome, Italy, Sep. 2010, pp. 1–7.
   Google Scholar
• A. M. EL-Refaie, “Fractional-slot concentrated-windings synchronous permanent magnet machines: Opportunities and challenges,” IEEE Trans. Ind. Electron., vol. 57, no. 1, pp. 107–121, Jan. 2010.
   Web of Science ®Google Scholar
• I. Petrov, P. Ponomarev, Y. Alexandrova, and J. Pyrhönen, “Unequal teeth widths for torque ripple reduction in permanent magnet synchronous machines with fractional-slot non-overlapping windings,” IEEE Trans. Magn., vol. 51, no. 2, pp. 1–9, Feb. 2015.
   PubMed Web of Science ®Google Scholar
• J. J. Buksnaitis, Sinusoidal Three-Phase Windings of Electric Machines. Cham, Switzerland: Springer-Verlag, 2016.
   Google Scholar
• A. M. EL-Refaie and T. M. Jahns, “Optimal flux weakening in surface PM machines using fractional-slot concentrated windings,” IEEE Trans. Ind. Appl., vol. 41, no. 3, pp. 790–800, May 2005.
   Web of Science ®Google Scholar
• L. Alberti and N. Bianchi, “Theory and design of fractional-slot multilayer windings,” IEEE Trans. Ind. Appl., vol. 49, no. 2, pp. 841–849, Mar. 2013.
   Web of Science ®Google Scholar
• A. O. Di Tommaso, F. Genduso, and R. Miceli, “A new software tool for design, optimization, and complete analysis of rotating electrical machines windings,” IEEE Trans. Magn., vol. 51, no. 4, pp. 1–10, Apr. 2015.
   PubMed Web of Science ®Google Scholar
• C. Alteheld, A. K. Hartmann, and R. Gottkehaskamp, “A new systematic method to design windings of polyphase rotating electrical machines and evaluation of their optimization potential,” in Proc. 22 Int. Conf. Electr. Mach, Sep. 2016, pp. 1257–1263.
   Google Scholar
• A. Tessarolo, M. Mezzarobba, and N. Barbini, “Improved four-layer winding design for a 12-slot 10-pole permanent magnet machine using unequal tooth coils,” in Proc. 42nd Annu. Conf. IEEE Ind. Electron. Soc., Florence, Italy, Oct. 2016, pp. 1686–1691.
   Google Scholar
• M. V. Cistelecan, F. J. Ferreira, and M. Popescu, “Three phase tooth-concentrated multiple-layer fractional windings with low space harmonic content,” in Proc. Energy Convers. Congr. Expo., Atlanta, GA, USA, Sep. 2010, pp. 1399–1405.
   Google Scholar
• G. Dajaku and D. Gerling, “A novel 24-slots/10-poles winding topology for electric machines,” in Proc. IEEE Int. Elect. Mach. Drives Conf., Niagara Falls, ON, Canada, May 2011, pp. 65–70.
   Google Scholar
• P. B. Reddy, K. K. Huh, and A. M. EL-Refaie, “Generalized approach of stator shifting in interior permanent-magnet machines equipped with fractional-slot concentrated windings,” IEEE Trans. Ind. Electron., vol. 61, no. 9, pp. 5035–5046, Sep. 2014.
   Web of Science ®Google Scholar
• W. Kothals-Altes, “Motor winding,” U.S. Patent 1 267 232, May, 1918.
   Google Scholar
• M. V. Cistelecan, F. J. Ferreira, and M. Popescu, “Adjustable flux three-phase AC machines with combined multiple-step star–delta winding connections,” IEEE Trans. Energy Convers., vol. 25, no. 2, pp. 348–355, Jun. 2010.
   Web of Science ®Google Scholar
• H. Kasten and W. Hofmann, “Electrical machines with higher efficiency through combined star-delta windings,” in Proc. IEEE Int. Electr. Mach Drives Conf, May 2011, pp. 1374–1379.
   Google Scholar
• G. Dajaku and D. Gerling, “A novel tooth concentrated winding with low space harmonic contents,” in Proc. IEEE Int. Elect. Mach. Drives Conf., Chicago, IL, USA, May 2013, pp. 755–760.
   Google Scholar
• N. Bekka, M. E. Zaïm, N. Bernard, and D. Trichet, “Optimization of the MMF function of fractional slot concentrated windings,” in Proc. Int. Conf. Electr. Mach., Sep. 2014, pp. 616–622.
   Google Scholar
• N. Bekka, M. E. Zaïm, N. Bernard, and D. Trichet, “A novel methodology for optimal design of fractional slot with concentrated windings,” IEEE Trans. Energy Convers., vol. 31, no. 3, pp. 1153–1160, Sep. 2016.
   Web of Science ®Google Scholar
• G. Dajaku and D. Gerling, “Low costs and high-efficiency electric machines,” in Proc. 2nd Int. EDPC, Nuremberg, Germany, Oct. 2012, pp. 1–7.
   Google Scholar
• G. Dajaku and D. Gerling, “Different novel methods for reduction of low space harmonics for the fractional slot concentrated windings,” in Proc. 15th Int. Conf. Elect. Mach. Syst., Oct. 2012, pp. 1–6.
   Google Scholar
• D. Ishak, Z. Q. Zhu, and D. Howe, “Permanent-magnet brushless machines with unequal tooth widths and similar slot and pole numbers,” IEEE Trans. Ind. Appl., vol. 41, no. 2, pp. 584–590, Mar. 2005.
   Web of Science ®Google Scholar
• N. L. Schmitz and D. W. Novotny, Introductory Electromechanics. New York, NY, USA: Ronald Press, 1965.
   Google Scholar
• A. M. El-Refaie and T. M. Jahns, “Impact of winding layer number and magnet type on synchronous surface PM machines designed for wide constant-power speed range operation,” IEEE Trans. Energy Convers., vol. 23, no. 1, pp. 53–60, Mar. 2008.
   Web of Science ®Google Scholar
• Global Optimization 10.0, Loehle Enterprises, Naperville, IL, USA, 2014. Available: https://www.wolfram.com/products/applications/globalopt. Accessed: 2014.
   Google Scholar
• G. Dajaku, W. Xie, and D. Gerling, “Reduction of low space harmonics for the fractional slot concentrated windings using a novel stator design,” IEEE Trans. Magn., vol. 50, no. 5, pp. 1–12, May 2014.
   Web of Science ®Google Scholar
• M. V. Cistelecan, F. J. T. E. Ferreira, and M. Popescu, “Three phase tooth-concentrated interspersed windings with low space harmonic content,” in Proc. 19 Int. Conf. Electr. Mach, Sep. 2010, pp. 1–6.
   Google Scholar
• A. S. Abdel-Khalik, S. Ahmed, and A. M. Massoud, “Low space harmonics cancelation in double-layer fractional slot winding using dual multiphase winding,” IEEE Trans. Magn., vol. 51, no. 5, pp. 1–10, May 2015.
   PubMed Web of Science ®Google Scholar
• A. S. Abdel-Khalik, S. Ahmed, and A. M. Massoud, “Effect of multilayer windings with different stator winding connections on interior PM machines for EV applications,” IEEE Trans. Magn., vol. 52, no. 2, pp. 1–7, Feb. 2016.
   Web of Science ®Google Scholar
• M. N. Ibrahim, P. Sergeant, and E. E. M. Rashad, “Combined star-delta windings to improve synchronous reluctance motor performance,” IEEE Trans. Energy Convers., vol. 31, no. 4, pp. 1479–1487, Dec. 2016.
   Web of Science ®Google Scholar