Design of a PCB stator coreless axial flux permanent magnet synchronous motor based on a novel topology Halbach array

  • Xiao-yuan Wang
  • Xiang LiEmail author
  • Chun-peng Li
  • Si-jia Xu
  • Le-tao Ling


A novel topology Halbach permanent magnet array is proposed and applied to the design of a printed circuit board (PCB) axial flux permanent magnet (AFPM) motor. Compared with the traditional coreless AFPM motor, this novel topology for a Halbach permanent magnet array PCB stator AFPM motor has larger air-gap magnetic flux density and air-gap flux per pole. The magnetic flux leakage is effectively reduced, and the air-gap magnetic density is close to the sine wave. Results of the finite element analysis and prototype experiments verify the feasibility and effectiveness of the novel Halbach permanent magnet array PCB stator motor. A reference basis and practical value for the design of the PCB AFPM motor are provided.

Key words

Axial flux permanent magnet synchronous motor Printed circuit board Halbach permanent magnet array Finite element method 

CLC number



Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Cao YJ, Huang RK, Jin L, et al., 2014. Design and analysis of a stator coreless axial-flux permanent magnet machine with module poles. Proc CSEE, 34(6):903–909 (in Chinese). Google Scholar
  2. Dutta R, Rahman MF, 2008. Design and analysis of an interior permanent magnet (IPM) machine with very wide constant power operation range. IEEE Trans Energ Conv, 23(1):25–33. CrossRefGoogle Scholar
  3. Fan JJ, Wu JH, 2010. Analytical solution and analysis of airgap magnetic field of PMSM with partition-between-poles Halbach magnet considering effect of slotting. Proc CSEE, 30(12):98–105 (in Chinese). Google Scholar
  4. Fan JJ, Wu JH, Shen L, et al., 2009. Multi-objective optimization of permanent magnet synchronous motor with partition between poles Halbach magnet. Trans China Electr Soc, 24(9):53–58 (in Chinese). Google Scholar
  5. Galea M, Papini L, Zhang H, et al., 2015. Demagnetization analysis for Halbach array configurations in electrical machines. IEEE Trans Magn, 51(9):8107309. CrossRefGoogle Scholar
  6. Huang YK, Guo BC, Guo YG, et al., 2017. Analytical modeling of axial flux PM machines with eccentricities. Int J Appl Electromagn Mech, 53(4):757–777. MathSciNetCrossRefGoogle Scholar
  7. Jiao ZX, Wang TY, Yan L, 2017. Design of a tubular linear oscillating motor with a novel compound Halbach magnet array. IEEE/ASME Trans Mech, 22(1):498–508. CrossRefGoogle Scholar
  8. Kumar GLSNVAV, Jain AK, 2014. Robust design and analysis with wide speed operation of surface mounted PMSM drive. Proc IEEE Int Conf on Power Electronics, Drives and Energy Systems, p.1–6.
  9. Kumar S, Zhao WL, Du ZS, et al., 2015. Design of ultrahigh speed axial-flux permanent magnet machine with sinusoidal back EMF for energy storage application. IEEE Trans Magn, 51(11):8113904. CrossRefGoogle Scholar
  10. Li LL, Zhang JP, Zhang CM, et al., 2015. Research on the high efficiency external rotor permanent magnet motor based on Halbach array. Proc 18th Int Conf on Electrical Machines and Systems, p.1463–1467.
  11. Luise F, Tessarolo A, Agnolet F, et al., 2016. Design optimization and testing of high-performance motors: evaluating a compromise between quality design development and production costs of a Halbach-array PM slotless motor. IEEE Ind Appl Mag, 22(6):19–32. CrossRefGoogle Scholar
  12. Neethu S, Shinoy KS, Shajilal AS, 2010. Novel design, optimization and realization of axial flux motor for implantable blood pump. Joint Int Conf on Power Electronics, Drives and Energy Systems & Power India, p.1–6.
  13. Tang RY, 1997. Modern Permanent Magnet Machines. Machinery Industry Press, Beijing, China, p.310–311 (in Chinese).Google Scholar
  14. Ubani OG, Mueller MA, Chick J, et al., 2016. Analysis of an air-cored axial flux permanent magnet machine with Halbach array. Proc 8th IET Int Conf on Power Electronics, Machines and Drives, p.1–6.
  15. Wang XY, Tang RY, Du JJ, et al., 2007. Optimization of disk coreless permanent magnet synchronous motor based on Halbach—the wedgy airgap motor. Trans China Electr Soc, 22(3):2–5 (in Chinese). Google Scholar
  16. Wu JF, 2012. Design of a miniature axial flux flywheel motor with PCB winding for nanosatellites. Proc Int Conf on Optoelectronics and Microelectronics, p.544–548.
  17. Yu YL, Wang YX, Sun F, 2011. Design of permanent magnet motor/generator using Halbach magnetized structure for the flywheel energy storage system. Proc 6th Int Forum on Strategic Technology, p.593–597.
  18. Zhang L, Kou BQ, Zhao BC, et al., 2013. A novel synchronous permanent magnet linear motor with Halbach secondary structure. Trans China Electr Soc, 28(7):39–45 (in Chinese). Google Scholar
  19. Zheng P, Zhao J, Liu RR, et al., 2010. Magnetic characteristics investigation of an axial-axial flux compound-structure PMSM used for HEVs. IEEE Trans Magn, 46(6):2191–2194. CrossRefGoogle Scholar
  20. Zhu HQ, Chen LG, Li YW, et al, 2013. Finite element analysis of bearingless permanent magnet motors with Halbach array. Electr Mach Contr, 17(4):45–49 (in Chinese). Google Scholar

Copyright information

© Zhejiang University and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of Electrical Engineering and AutomationTianjin UniversityTianjinChina

Personalised recommendations