Cogging torque reduction of Interior Permanent Magnet Synchronous Motor (IPMSM)

Document Type : Article


Department of Electrical Engineering, Tafresh University, Tafresh, Iran


In this paper using combination of two separated ideas the torque ripple of Interior Permanent Magnet Synchronous Motor (IPMSM) is reduced. These two ideas are rotor PM segmented and modifying the rotor structure based on pole-arc ratio of flux barrier optimization. In addition the torque ripple due to the reluctance torque component decreased too. Analysis and simulation results including saturation have been performed using analytical method and Finite Element Method (FEM). The rotor flux barrier configuration of the proposed design is carried out by Response Surface Method (RSM) as optimization technique which is verified by FEM


Main Subjects

1. Dutta, R. and Rahman, M.F. Design and analysis
of an interior permanent magnet (IPM) machine with
very wide constant power operation range", IEEE
Transactions on Energy Conversion, 23(1), pp. 25-33
2. Fang, L. and Hong, J.P. Flux-barrier design technique
for improving torque performance of interior permanent
magnet synchronous motor for driving compressor
in HEV," Conference in Vehicle Power and Propulsion,
pp. 1486-1490 (2009).
3. Kim, D.H., Park, H., Lee, J.H., and Kim, C.E. Optimal
shape design of iron core to reduce cogging torque
of IPM motor", IEEE Transactions on Magnetics,
39(3), pp. 1456-1459 (2003).
4. Kang, G.H., Son, Y.D., Kim, G.T., and Hur, J. A
novel cogging torque reduction method for interiortype
permanent-magnet motor , IEEE Transactions
on Industry Applications, 45(1), pp. 161-167 (2009).
5. Park, J.U., Cho, J.H., Chung, D.H., So, J.Y., and
Kim, D.K. A rotor shape design of interior PM motor
for reducing cogging torque in electric air-conditioning
system of HEV", International Conference on Electrical
Machines and Systems (ICEMS), pp. 1139-1143
6. Dutta, R., Sayeef, S., and Rahman, M.F. Cogging
torque analysis of a segmented interior permanent
magnet machine", Electric Machines & Drives Conference,
IEMDC07, pp. 781-786 (2007).
7. Lee, S.T. Development and analysis of interior permanent
magnet synchronous motor with eld excitation
structure," PhD Thesis, University of Tennessee
8. Arehpanahi, M. and Sanaei, V. Optimal design of
interior permanent magnet motor f with wide
weakening range," Scientia Iranica D, 22(3), pp. 1045-
1051 (2015)
9. Dutta, R. A Segmented Interior Permanent. Magnet
Synchronous Machine with wide eld-weakening
range" PHD Thesis, The University of New South
Wales (2007).