Optimal design and vector control of an interior ferrite permanent magnet synchronous motor

Considering that the magnetic performance of the ferrite magnet is relatively weak, an interior ferrite Permanent magnet synchronous motors (PMSM) with reliable flux-focusing structure is presented in this paper. An optimal maximum torque per ampere (MTPA) control strategy is proposed, which fits the variation of core saturation and winding inductances. In order to simplify the computation complexity and to obtain a good performance over the full load range, an optimal three-segmented control strategy is proposed. Analysis results show that the optimized motor and the control strategies can perform well under various loads.

[1]  T. S. Radwan,et al.  Performance of interior permanent magnet motor drive over wide speed range , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[2]  G. Ombach,et al.  Performance optimisation of the brushless motor with IPM rotor for automotive applications , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[3]  J. Pyrhonen,et al.  Comparison of Synchronous Motors With Different Permanent Magnet and Winding Types , 2013, IEEE Transactions on Magnetics.

[4]  Nicola Bianchi,et al.  Theory and design of fractional-slot multilayer windings , 2011 .

[5]  Shigeo Morimoto,et al.  Performance of PM assisted synchronous reluctance motor for high efficiency and wide constant power operation , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[6]  Nicola Bianchi,et al.  Use of the star of slots in designing fractional-slot single-layer synchronous motors , 2006 .

[7]  Timothy J. E. Miller,et al.  Maximising the saliency ratio of the synchronous reluctance motor , 1993 .

[8]  Jian-Xin Shen,et al.  Machine design and control strategy for wide-speed-range PMSG systems , 2015 .

[9]  Z. Zhu,et al.  Investigation of Torque Ripples in Permanent Magnet Synchronous Machines With Skewing , 2013, IEEE Transactions on Magnetics.

[10]  Shigeo Morimoto,et al.  Wide-speed operation of interior permanent magnet synchronous motors with high-performance current regulator , 1994 .

[11]  Z. Q. Zhu,et al.  Fractional slot permanent magnet brushless machines and drives for electric and hybrid propulsion systems , 2011 .

[12]  Jian-Xin Shen,et al.  Cogging torque and operation torque ripple reduction of interior permanent magnet synchronous machines by using asymmetric flux-barriers , 2017, 2017 20th International Conference on Electrical Machines and Systems (ICEMS).

[13]  Changliang Xia,et al.  Cogging Torque Modeling and Analyzing for Surface-Mounted Permanent Magnet Machines With Auxiliary Slots , 2013, IEEE Transactions on Magnetics.

[14]  Pil-Wan Han,et al.  A Technique of Torque Ripple Reduction in Interior Permanent Magnet Synchronous Motor , 2011, IEEE Transactions on Magnetics.

[15]  Jian-Xin Shen,et al.  Optimal design of low-cost IPM AC motor , 2014 .