Analytical Prediction of Electromagnetic Performance of Surface-Mounted Permanent Magnet Machines Based on Subdomain Model Accounting for Tooth-Tips

The developed subdomain model accounting for toothtips can accurately predict the open-circuit, armat ure reaction and on-load field distributions in surface-mounted permanent magnet machines. Based on this field model, their ele ctromagnetic performance of the machine, such as the cogging torque, back-EMF a nd electromagnetic torque, and winding inductances are calculated. The model can also be used for the evaluation of demagnetizat ion withstand capability. The finite element analysis confirms excellent accuracy of the developed analytical model.

[1]  Z. Q. Zhu,et al.  Comparison of analytical models for predicting cogging torque in surface-mounted PM machines , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[2]  K. Atallah,et al.  Demagnetization Assessment for Three-Phase Tubular Brushless Permanent-Magnet Machines , 2008, IEEE Transactions on Magnetics.

[3]  Y. Amara,et al.  Two-Dimensional Exact Analytical Solution of Armature Reaction Field in Slotted Surface Mounted PM Radial Flux Synchronous Machines , 2009, IEEE Transactions on Magnetics.

[4]  D. Staton,et al.  An Improved Subdomain Model for Predicting Magnetic Field of Surface-Mounted Permanent Magnet Machines Accounting for Tooth-Tips , 2011, IEEE Transactions on Magnetics.

[5]  Timothy J. E. Miller,et al.  Brushless Permanent-Magnet and Reluctance Motor Drives , 1989 .

[6]  D. Ishak,et al.  Analytical modeling of permanent magnet excited brushed DC motor for low-cost applications , 2008, 2008 5th International Symposium on Mechatronics and Its Applications.

[7]  Z. Zhu,et al.  An Accurate Subdomain Model for Magnetic Field Computation in Slotted Surface-Mounted Permanent-Magnet Machines , 2010, IEEE Transactions on Magnetics.

[8]  Thomas M. Jahns,et al.  Winding Inductances of Fractional Slot Surface-Mounted Permanent Magnet Brushless Machines , 2008, 2008 IEEE Industry Applications Society Annual Meeting.

[9]  T. Lipo,et al.  Analytical calculation of magnetic field distribution in the slotted air gap of a surface permanent-magnet motor using complex relative air-gap permeance , 2006, IEEE Transactions on Magnetics.

[10]  R. Ibtiouen,et al.  Magnetic Field Analysis of Inset and Surface-Mounted Permanent-Magnet Synchronous Motors Using Schwarz–Christoffel Transformation , 2009, IEEE Transactions on Magnetics.

[11]  T. Lipo,et al.  Analytical Solution for Cogging Torque in Surface Permanent-Magnet Motors Using Conformal Mapping , 2008, IEEE Transactions on Magnetics.

[12]  Z.J. Liu,et al.  Accurate Prediction of Magnetic Field and Magnetic Forces in Permanent Magnet Motors Using an Analytical Solution , 2008, IEEE Transactions on Energy Conversion.

[13]  M Popescu,et al.  Subdomain Model for Predicting Armature Reaction Field of Surface-Mounted Permanent-Magnet Machines Accounting for Tooth-Tips , 2011, IEEE Transactions on Magnetics.

[14]  Z.Q. Zhu,et al.  Analytical Methods for Minimizing Cogging Torque in Permanent-Magnet Machines , 2009, IEEE Transactions on Magnetics.

[15]  D. Staton,et al.  Combined complex permeance and sub-domain model for analytical predicting electromagnetic performance of surface-mounted PM machines , 2010 .

[16]  K. Atallah,et al.  Armature reaction field and winding inductances of slotless permanent-magnet brushless machines , 1998 .

[17]  Z. Zhu,et al.  Analytical prediction of rotor eddy current loss in brushless machines equipped with surface-mounted permanent magnets. II. Accounting for eddy current reaction field , 2001, ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501).

[18]  B. Ackermann,et al.  Analytical modeling of the cogging torque in permanent magnet motors , 1995 .

[19]  Z.J. Liu,et al.  Analytical Solution of Air-Gap Field in Permanent-Magnet Motors Taking Into Account the Effect of Pole Transition Over Slots , 2007, IEEE Transactions on Magnetics.

[20]  Ali Keyhani,et al.  Analytical model for permanent magnet motors with surface mounted magnets , 2003 .

[21]  심동준,et al.  Analysis of Skew Effects on Cogging Torque and BEMF for BLDCM , 1990 .

[22]  Thomas A. Lipo,et al.  General closed-form analytical expressions of air-gap inductances for surface-mounted permanent magnet and induction machines , 2003, IEEE International Electric Machines and Drives Conference, 2003. IEMDC'03..

[23]  Z. Zhu,et al.  Winding inductances of brushless machines with surface-mounted magnets , 1997, 1997 IEEE International Electric Machines and Drives Conference Record.

[24]  Z. Zhu,et al.  Instantaneous magnetic field distribution in brushless permanent magnet DC motors. III. Effect of stator slotting , 1993 .

[25]  Quan Jiang,et al.  An improved analytical solution for predicting magnetic forces in permanent magnet motors , 2008 .

[26]  Z. Q. Zhu,et al.  Comparison of analytical models for predicting electromagnetic performance in surface-mounted permanent magnet machines , 2010, 2010 IEEE Vehicle Power and Propulsion Conference.

[27]  C. Espanet,et al.  Analytical Solution of the Magnetic Field in Permanent-Magnet Motors Taking Into Account Slotting Effect: No-Load Vector Potential and Flux Density Calculation , 2009, IEEE Transactions on Magnetics.

[28]  P. Bauer,et al.  Improved Analytical Model of a Permanent-Magnet Brushless DC Motor , 2008, IEEE Transactions on Magnetics.

[29]  T.J.E. Miller,et al.  Calculation of inductance in permanent-magnet DC motors , 1999 .

[30]  J. De La Ree,et al.  Torque production in permanent-magnet synchronous motors , 1989 .

[31]  D. Howe,et al.  Analytical prediction of the cogging torque in radial-field permanent magnet brushless motors , 1992 .

[32]  Z. Zhu,et al.  Magnetic field analysis and inductances of brushless DC machines with surface-mounted magnets and non-overlapping stator windings , 1995 .